# Bottle, Wine & Serving Tools

Name the job first: corks, caps, leftovers, or pouring. For corkscrews the worm decides most of it: an open wire spiral, coated, longer than the cork. Drill-bit worms tear old corks, which want a two-prong puller. For leftovers, time picks the method: a stopper for days, a hand vacuum pump for one to two weeks, argon for a month.

## How it works

These tools act on the closure and on the air above the wine. A corkscrew's worm, the metal spiral, threads into the cork, and a lever, wings, a motor or your arm then pulls. An open wire spiral grips cork between its turns; an auger, cut like a wood screw, bores out the middle, which is how old, dry corks crumble. A two-prong puller slides down beside the cork instead. Once a bottle is open, oxygen dulls the wine within days. A vacuum pump removes some of the air. Argon, an inert gas heavier than air, fills the space the poured wine left. A needle system pours through the cork and refills with argon, so air never gets in. Sparkling wine holds its fizz under pressure, so its savers seal or recharge pressure rather than pull a vacuum. An aerator does the opposite and adds air on purpose. [8] [7] [2] [1] [15] [25] [26] [32]

| Family | What it is | Suits |
|---|---|---|
| Waiter's corkscrew | A pocket wine key with a foil knife, a worm and an arm that rests on the bottle lip; a double-hinged arm has two notches instead of one. | Anyone willing to practise; the best tool for stuck or old corks. |
| Twist corkscrew | A frame that sits on the neck and centres the worm: winged models lift with two arms, continuous-turn models lift as you keep turning. | Beginners who want no technique. |
| Lever corkscrew | A countertop clamp with a handle that drives the worm in and pulls the cork in one motion. | People who open many bottles and have counter space. |
| Electric opener | A rechargeable motor that turns the worm in, reverses and pulls the cork. | Weak grip or arthritis. |
| Two-prong puller | Two thin blades rocked down between the cork and the glass, then twisted out; the Durand pairs them with a worm. | Aged bottles with fragile corks. |
| Air-pump and needle openers | A needle through the cork pumps air or gas into the bottle until the cork rises. | Young corks only. |
| Still-wine savers | Plain stoppers, vacuum pumps, argon sprays, argon pour-through stoppers and needle-through-cork systems, in rising order of keep time and cost. | Anyone who does not finish a bottle in one night. |
| Sparkling savers | Clamp stoppers that hold the pressure in, and CO2 chargers that top it back up. | Leftover Champagne, Prosecco or Cava. |
| Pourers and aerators | Spouts that stop drips, spirit speed pourers, and devices that mix air into wine as it pours. | Serving at the table. |
| Bottle-cap openers | A lever with a lip that catches under a crown cap: hand-held, flat bar blades, wall-mounted and keychain forms. | Beer and soda bottles. |

## How an expert narrows the choice

```mermaid
timeline
  section 1 · Job
    opener : ask Opener type, Handles old corks : skip Saving method, Pump drive, Claimed keep time, Closures it works with, Aerates
    preserver : ask Saving method : skip Opener type, Handles old corks, Worm shape, Nonstick worm, Worm length, Spare worm
    pourer or aerator : ask Aerates : skip Opener type, Handles old corks, Worm shape, Nonstick worm, Worm length, Spare worm, Saving method, Pump drive, Claimed keep time, Closures it works with, Pressurises the bottle
    bottle-cap opener : skip Opener type, Handles old corks, Worm shape, Nonstick worm, Worm length, Spare worm, Saving method, Pump drive, Claimed keep time, Closures it works with, Pressurises the bottle, Aerates
  section 2 · Opener type
    waiter's, double-hinged / waiter's, single-hinged : ask Nonstick worm, Worm length
    winged : ask Worm length
    lever : ask Spare worm, Nonstick worm
  section 3 · Saving method
    vacuum pump : ask Pump drive, Claimed keep time
    argon pour-through stopper : ask Pressurises the bottle : skip Closures it works with
    needle through cork : ask Closures it works with, Pressurises the bottle
    sparkling CO2 recharge : ask Pressurises the bottle : skip Closures it works with
    sparkling clamp stopper : skip Closures it works with
```

1. **Job.** Pulling corks, popping caps, saving leftovers, or pouring?
   The jobs share almost no facets. Corks map to opener, caps to bottle-cap opener, saving (or pouring by the glass through the cork) to preserver, other pouring to pourer or aerator; gift sets match every answer.
   If opener: ask Opener type, Handles old corks; skip Saving method, Pump drive, Claimed keep time, Closures it works with, Aerates.
   If preserver: ask Saving method; skip Opener type, Handles old corks, Worm shape, Nonstick worm, Worm length, Spare worm.
   If pourer or aerator: ask Aerates; skip Opener type, Handles old corks, Worm shape, Nonstick worm, Worm length, Spare worm, Saving method, Pump drive, Claimed keep time, Closures it works with, Pressurises the bottle.
   If bottle-cap opener: skip Opener type, Handles old corks, Worm shape, Nonstick worm, Worm length, Spare worm, Saving method, Pump drive, Claimed keep time, Closures it works with, Pressurises the bottle, Aerates.
   Skip if already known: a query naming corkscrew, wine key, opener, saver, preserver, stopper, pourer or aerator, a query naming a bar blade, church key, beer opener or cap opener.

2. **Opener type.** Wine key, winged, continuous-turn, lever, or electric?
   Mechanism sets skill, effort, storage and stuck-cork handling. Wine key maps to both waiter's values; the rest map to themselves. 'Easiest' maps to winged or continuous-turn, which novices found most intuitive. The old-cork question finds two-prong pullers.
   If waiter's, double-hinged or waiter's, single-hinged: ask Nonstick worm, Worm length.
   If winged: ask Worm length.
   If lever: ask Spare worm, Nonstick worm.
   Skip if already known: a query naming a waiter's, winged, lever, rabbit, electric or Ah-So opener.

3. **Saving method.** Bubbly, or still wine for days, two weeks, a month, or months?
   How long leftovers must last picks the method. Bubbly maps to the two sparkling values, days to cork or plain stopper, two weeks to vacuum pump, a month to argon pour-through stopper, months to needle through cork (maker claim only).
   If vacuum pump: ask Pump drive, Claimed keep time.
   If argon pour-through stopper: ask Pressurises the bottle; skip Closures it works with.
   If needle through cork: ask Closures it works with, Pressurises the bottle.
   If sparkling CO2 recharge: ask Pressurises the bottle; skip Closures it works with.
   If sparkling clamp stopper: skip Closures it works with.
   Skip if already known: a query naming Champagne, Prosecco or sparkling, an earlier answer about how fast the household finishes a bottle.

## What to surface

### Job

What the tool does to the bottle: pulls a cork, lifts a crown cap, saves what is left, or pours from it. The jobs share a shelf but almost nothing else. Corkscrews are judged on the worm and the leverage, savers on how long they keep wine drinkable, pourers on drips and air; a cap opener is a plain lever. Gift sets bundle an opener, a pump and an aerator; judge each piece by its own job. [29] [30] [26] [33] [32]

Values: opener, bottle-cap opener, preserver, pourer or aerator, gift set.
Question to ask: Pulling corks, popping caps, saving leftovers, or pouring?

Used as: top-level split, filter. Data: on the listing, backfill cost none. Look for it as: Title words: corkscrew, wine opener, wine key; bottle opener, bar blade, beer opener, cap opener; saver, preserver, vacuum pump, stopper; aerator, pourer, speed pourer, pour spout; gift set. A 'wine bottle opener' is a corkscrew.

### Saving method

How a saver keeps oxygen away from opened still wine, or keeps the pressure in sparkling wine. Method sets how long leftovers stay good. A winemaker quoted by America's Test Kitchen gives a recorked red four or five days and a white about three. ATK found the best hand vacuum pump good at one week and still fragrant at two, and Vacu Vin's published lab test found wine drinkable through 10 days. An argon pour-through stopper kept wine nearly fresh for a month. Needle systems claim years; no independent test found. [1] [20] [17] [16] [22] [11]

Values: cork or plain stopper, vacuum pump, argon spray, argon pour-through stopper, needle through cork, sparkling clamp stopper, sparkling CO2 recharge.
Question to ask: Bubbly, or still wine for days, two weeks, a month, or months?

Used as: top-level split, filter. Data: on the listing, backfill cost low. Look for it as: Title words: vacuum pump, argon, preserver, champagne stopper, sparkling; Coravin model names (Timeless is needle, Pivot is pour-through).
Chart: Keep-time ladder.

### Opener type

How an opener drives into the cork and lifts it out. Skill trades against control. Testers found twist corkscrews more intuitive for novices, but a waiter's corkscrew was faster and let them change the angle to rescue a stuck or broken cork. Wine Folly says a double hinge cuts the force needed. Electric openers still need some grip. Air-pump openers suit young corks only. [2] [3] [7] [4] [6] [29]

Values: waiter's, double-hinged, waiter's, single-hinged, winged, continuous-turn, lever, electric, two-prong, air pump or needle.
Question to ask: Wine key, winged, continuous-turn, lever, or electric?

Used as: top-level split, filter. Data: on the listing, backfill cost low. Look for it as: Title words: waiter's, wine key, sommelier, double hinged; winged or butterfly; lever, rabbit, vertical; electric, rechargeable; Ah-So or two-prong.
Single or double hinge is in the title for most waiter's corkscrews; when it is not, the side photo shows one or two notches on the arm.

### Pump drive

Whether a saver has a vacuum pump, and if so whether it is pumped by hand or by a battery motor. In America's Test Kitchen's tastings, wine sealed with electric pumps failed while wine from the better hand pumps held up at a week; its science editor put it down to the electric pumps pulling a weaker vacuum. Among hand pumps, a longer handle made pumping easier. On a sparkling saver, any vacuum pump is a warning flag (see the sparkling judgement). [1] [30] [31]

Values: manual, electric, no pump.
Question to ask: Hand pump, or press-a-button electric?

Used as: filter, shown on the card. Data: on the listing, backfill cost none. Look for it as: Titles say electric, automatic or rechargeable; otherwise manual. Champagne stoppers whose title says 'vacuum pump' carry the flag.

### Handles old corks

Whether an opener can pull an old, dry, crumbly natural cork out whole. Aged bottles are where weak openers fail. America's Test Kitchen found poor worms mangled long, brittle Bordeaux corks and broke two off inside the bottle. A waiter's corkscrew lets you adjust the angle mid-pull, and a two-prong puller grips the cork's sides and leaves its centre alone. Air-pump openers suit young corks only. [2] [7] [6] [24]

Question to ask: Opening old bottles with crumbly corks?

Used as: filter. Data: needs research, backfill cost low. Look for it as: Not a field. Derive from opener_mechanism and worm_type: yes for two-prong pullers and waiter's corkscrews with a wire-spiral worm; no for any auger worm and for air-pump openers; unknown for winged, continuous-turn, lever and electric openers with a wire spiral: America's Test Kitchen found good twist models handled old corks and poor ones mangled them, and no source tested lever or electric ones.
Costs what worm_type costs, since the rule needs the worm close-up; leave unknown where worm_type is unknown.

### Aerates

Whether a pourer mixes air into wine as it pours, or only pours cleanly, as drip-stop wine pourers and spirit speed pourers do. Air softens the harsh, drying edge of young red wine: America's Test Kitchen found pouring a red back and forth between pitchers helped. Aerating whites made them taste flat, and it called white-wine aerators a gimmick. So the answer follows what the buyer drinks: young reds, an aerator; mostly whites, a plain drip-stop pourer. [5] [26] [17] [1]

Question to ask: Aerate as you pour, or just stop drips?

Used as: filter. Data: on the listing, backfill cost none. Look for it as: Title says aerator or aerating pourer, versus pourer, spout, speed pourer or drip stop. Some saver kits, such as Coravin Pivot+ and Timeless, bundle an aerator; record it on the kit too.

### Claimed keep time

How long a saver's maker says opened wine stays fresh, as printed on the box or listing. It is the number listings lead with, and it compares poorly across brands because each brand runs or picks its own test. Vacuum stoppers claim 10 to 15 days, argon pour-through stoppers four weeks, needle systems years. Independent tasters found the best hand pump good at one week and fading at two. Compare claims within one method, and use the method to compare across. [30] [20] [17] [16] [1]


Used as: shown on the card. Data: on the listing, backfill cost low. Look for it as: In the title or first bullet as 'up to N days' or 'N weeks'.
Store day and week claims as days (one week is 7 d), next to the method. Open-ended claims such as 'even years later' have no number: keep them as text and leave the value empty. Never rank savers of different methods by it.
Chart: Keep-time ladder.

### Closures it works with

Which bottle closures a needle-through-cork saver can pour through and still leave sealed. A needle system works only because natural cork springs shut behind the needle. Synthetic corks do not reseal, so on those bottles it protects nothing, and thick wax can block the needle. Coravin's own guidance sends synthetic-cork bottles to its pour-through stopper model and screw caps to a special adapter cap. [18] [16] [15]

Values: natural cork only, natural cork or adapted screw cap.

Used as: filter. Data: needs research, backfill cost low. Look for it as: Brand FAQ and compatibility tables; seldom in marketplace titles.
Few brands make needle systems, so one lookup per model line covers the catalog.

### Worm shape

The shape of an opener's screw: an open wire spiral you can see through, or an auger, a solid shank with cut threads like a wood screw. An open spiral threads through the cork and holds it. An auger cuts its way in and, critics say, rips the soft centre out of older corks. America's Test Kitchen found a drill-bit worm split natural corks and bored holes through synthetic ones. The price does not tell you which you are getting; the close-up photo does. [8] [2] [7] [29]

Values: wire spiral, auger, none.

Used as: shown on the card, filter. Data: needs research, backfill cost low. Look for it as: Rarely a field; copy that says 'spiral' or 'helix' names a wire spiral. Two-prong and needle openers have none.
Classify from the worm close-up in the product photos; brand pages nearly always show it.

### Nonstick worm

Whether an opener's worm carries a nonstick (PTFE-type) coating. The coating cuts friction, so the worm enters straighter and tears the cork less; America's Test Kitchen ranked coated worms above plain steel in both twist and waiter's corkscrews. On lever pullers the coating is the part that wears: Wine Spectator says a worn coating makes the puller less efficient, and Rabbit says flaking or bare steel means a new worm, not a new opener. [2] [3] [23] [12]


Used as: shown on the card. Data: needs research, backfill cost low. Look for it as: Brand pages say non-stick, Teflon or PTFE coated; a few marketplace titles say non-stick worm or screw.
Read the brand page for the top 100 openers; leave unknown otherwise rather than guess from colour.

### Worm length

The length of an opener's working spiral, which has to reach through the cork. A worm shorter than the cork lifts only its top, so the bottom tears off or has to be coaxed out. Most still-wine corks are 38 to 44 mm long, and long-ageing wines use corks of 54 to 55 mm (the two cork sources differ by a millimetre). One tester notes some bottles use longer corks still. America's Test Kitchen found several winged models fell short. [9] [10] [2]

Range: Corks it must clear run from 38 mm for simple wines to 54 or 55 mm for long-ageing ones.

Used as: shown on the card. Data: needs research, backfill cost medium. Look for it as: Seldom stated; a few brand pages give worm length or number of turns.
Backfill the top 50 openers from brand pages or a photo with a scale; skip two-prong and needle openers.
Chart: Worm against cork.

### Pressurises the bottle

Whether the tool pushes gas into a closed bottle, as needle and pour-through argon savers, CO2 sparkling chargers and air-pump openers do. Pressurising a flawed bottle can break it. In 2014 the US Consumer Product Safety Commission announced a recall of Coravin's first model after 13 reports of bottles breaking, one of which injured the user; the remedy was a neoprene sleeve and a warning not to use damaged bottles. Coravin now ships a sleeve with its needle, pour-through and sparkling systems. Check the sleeve is in the box. [14] [13] [15] [17] [16] [19] [1] [6]


Used as: shown on the card. Data: derived from listing fields, backfill cost low. Look for it as: Derive: yes for opener_mechanism 'air pump or needle' and for preservation_method 'needle through cork', 'argon pour-through stopper' or 'sparkling CO2 recharge'; brand box lists name the bottle sleeve.

### Spare worm

Whether a lever opener comes with a replacement worm in the box. Lever pullers wear their worm's coating away with use, and Rabbit warns that a worn worm puts more stress on the lever than it is built for. A spare in the box means the first worn worm does not end the opener. Pulling through foil or wax scrapes the coating faster. [23] [12] [29]


Used as: shown on the card. Data: on the listing, backfill cost low. Look for it as: Titles say 'extra spiral' or 'spare spiral'.

## Numbers worth computing

| Metric | Formula | Why |
|---|---|---|
| Worm reach margin (mm) | `worm_length_mm - 55` | Zero or above means the worm is as long as the long-ageing corks both cork sources describe, 54 to 55 mm. Negative means those corks may tear at the bottom. One tester notes some corks run longer, so zero is a floor, not a margin. [9] [10] [2] |
| Argon cost per glass (currency per glass) | `capsule_price / rated_glasses_per_capsule` | Argon savers run on capsules and a hand vacuum pump costs nothing to run, so the running cost per glass, not the device price, is the real comparison. Coravin rates the Pivot at about 20 glasses per capsule and the Timeless at about 15; America's Test Kitchen found one Pivot capsule saved four bottles. [16] [17] [1] |

## What you give up

- Lever and electric openers need no skill but take counter or drawer space and give you no way to change the angle on a stuck cork. A waiter's corkscrew takes practice and handles both. [2] [7] [4] Board branch: "See more openers for old bottles".
- Argon keeps still wine for a month but runs on capsules. A hand vacuum pump costs nothing to run and holds wine for one to two weeks. [1] [17] [20] Board branch: "See more savers with no refills".
- A needle system keeps the bottle sealed, but only natural cork reseals behind it. Bottles with synthetic corks need a pour-through stopper, which means pulling the cork first. [18] [16] [17] Board branch: "See more savers for any closure".

## How to draw it

**Keep-time ladder** (scale, shows Saving method, Claimed keep time). Puts every saving method on one days-to-months line, with the tested band drawn solid and the maker's claim as a hollow mark, so a buyer sees a vacuum box's 'up to 15 days' at the end of the tested one-to-two-week band, and argon's tested band reaching a month. This is a proposal, nobody draws it this way yet. [1] [20]

**Worm against cork** (bar, shows Worm length). Draws the worm beside marks for 38, 44 and 55 mm corks, so a short worm is obvious before it tears a cork. This is a proposal, nobody draws it this way yet. [9] [10]

## Words you will meet

- **Worm**. The metal spiral of a corkscrew, the part that goes into the cork.
- **Waiter's corkscrew**. A folding pocket opener, also called a wine key, with a small foil knife, a worm and an arm that rests on the bottle's lip.
- **Double-hinged**. A waiter's corkscrew whose arm has two notches, rather than one, that rest on the bottle's lip.
- **Wire spiral**. A worm made by winding a rod into an open coil you can see straight down the middle of.
- **Auger**. A worm made like a wood screw, with threads cut into a solid shank.
- **Twist corkscrew**. America's Test Kitchen's name for openers that sit on the bottle neck and centre the worm for you: winged and continuous-turn models.
- **Winged corkscrew**. A twist corkscrew with two arms that rise as the worm goes in; pushing them down lifts the cork.
- **Continuous-turn corkscrew**. A frame that sits on the bottle neck; you keep turning one handle and the cork rises out.
- **Lever corkscrew**. A clamp that grips the neck while a long handle pushes the worm in and pulls the cork out.
- **Two-prong puller**. An opener with two thin blades that slide down between the cork and the glass; the Ah-So is the common one.
- **Durand**. A two-part opener that combines a worm with a two-prong puller for very old corks.
- **Synthetic cork**. A plastic stopper shaped like a cork, denser and slipperier than natural cork.
- **Agglomerated cork**. A stopper made of small pieces of natural cork glued together.
- **Oxidation**. The change oxygen causes in opened wine, which dulls its smell and later turns it sour.
- **Argon**. A gas that does not react with wine and is heavier than air, so it lies on the wine's surface.
- **Aerator**. A device that mixes air into wine as it pours, meant to soften young red wine.
- **Crown cap**. The crimped metal cap on beer and soda bottles, lifted off with a bottle-cap opener.
- **Speed pourer**. A spout pushed into a spirit bottle's neck to pour from it.

## Where we made a call

- Compare keep-time claims within one method: vacuum boxes say 10 to 15 days, and tests found one to two weeks. (confidence high). Vacu Vin's published Meron test found wine drinkable when it stopped at day 10. America's Test Kitchen found its best hand pump good at one week and still fragrant, but less fresh, at two. Neither tested 15 days. [20] [1] [30]
- Vacuum pumps slow decline rather than stop it; argon holds still wine longer. (confidence medium). Sources disagree. Wine Spectator says pumps remove little oxygen and may mute aroma. America's Test Kitchen found good hand pumps fine at a week and fading at two, with argon better at two weeks and a month. We rank vacuum between a plain stopper and argon. [11] [1]
- An open wire-spiral worm beats an auger, most of all on old corks. (confidence high). Sources disagree. Auger makers claim their sharp threads enter more easily. Critics and testers report torn centres and broken old corks. We side with the testers. [8] [2] [7]
- A double-hinged waiter's corkscrew needs less force than a single hinge. (confidence medium). One primer: Wine Folly says the double hinge cuts the brute force needed. America's Test Kitchen asks only for a hinged arm and compares no hinge types; Wirecutter was unreachable. [7]
- Use any gas-injecting saver, whether needle, argon pour-through or CO2 sparkling charger, with its bottle sleeve, never on a chipped or cracked bottle. (confidence high). The CPSC's 2014 remedy was the sleeve and a warning about damaged bottles. Coravin now boxes a sleeve with Timeless, Pivot+ and Sparkling, saying cracked or chipped bottles can break and pressurised ones may break if dropped. [14] [13] [15] [17] [16] [19]
- Never vacuum-pump sparkling wine; use a clamp stopper or a CO2 charger. (confidence medium). Chain of two facts: sparkling wine holds its fizz under several atmospheres of pressure, and a vacuum lowers pressure. Vacu Vin steers sparkling wine to a separate stopper, yet some marketplace champagne stoppers carry a built-in pump; pump_drive flags those. [25] [21] [19] [31]
- Aeration can help young tannic reds; on whites it flattens the flavour. (confidence medium). One tester, America's Test Kitchen, in two tastings. The red result came from pouring between pitchers; we found no independent test of pour-through aerators on reds. [5]
- Parts that touch wine fall under food-contact rules, but 'food-grade silicone' on a listing names no standard. (confidence medium). In the US, 21 CFR 177.2600 sets extraction limits for repeated-use rubber, silicone included. In the EU, Regulation 1935/2004 bars materials that change a food's taste or odour unacceptably. Listings rarely say which rule they meet. [27] [28] [31]
- Electric openers suit weak hands, not difficult corks: several stalled on synthetic corks. (confidence medium). America's Test Kitchen found most still needed some grip and several struggled with synthetic corks; The Kitchn's electric opener often failed to pull the cork. [4] [6]

## References

1. [America's Test Kitchen: The Best Wine Savers](https://www.americastestkitchen.com/equipment_reviews/1510-wine-savers) (specialist review). Supports: Best manual vacuum pump good at one week, still fragrant but less fresh at two; Argon pour-through stopper nearly fresh after one month; Electric vacuum pumps failed tastings; A winemaker quoted: recorked red four to five days, white about three; Longer pump handles made pumping easier; Pivot injects argon into the stoppered bottle as it pours; One Pivot capsule saved four bottles; the set now includes an aerator.
2. [America's Test Kitchen: The Best Wine Openers (Twist Corkscrews)](https://www.americastestkitchen.com/equipment_reviews/1849-wine-openers-twist-corkscrews) (specialist review). Supports: Twist corkscrews more intuitive for novices than waiter's; Short worms failed on long corks; several winged models fell short; Drill-bit worm split natural corks and bored synthetic ones; Nonstick coating reduced cork damage; Poor worms mangled brittle Bordeaux corks; Waiter's corkscrew best for older crumbly corks.
3. [America's Test Kitchen: Continuous-turn corkscrews](https://www.americastestkitchen.com/articles/3738-endless-continuous-turn-corkscrews-wine-openers) (specialist review). Supports: Look for a long nonstick-coated worm and a hinged arm.
4. [America's Test Kitchen: The Best Electric Wine Openers](https://www.americastestkitchen.com/equipment_reviews/2642-the-best-electric-wine-openers) (specialist review). Supports: Electric openers still require some hand strength; Several models struggled with synthetic corks.
5. [America's Test Kitchen: Does white wine benefit from aeration?](https://www.americastestkitchen.com/how_tos/6551-does-white-wine-benefit-from-aeration) (specialist review). Supports: Aerated whites tasted flat; white-wine aerators a gimmick; Pouring reds back and forth softened harsh young reds.
6. [The Kitchn: The best wine openers and corkscrews (six styles tested)](https://www.thekitchn.com/best-wine-openers-corkscrews-23186051) (specialist review). Supports: Two-prong puller suits old, delicate or recessed corks; Air-pump opener only for young corks; Electric opener removed the cork about half the time.
7. [Wine Folly: What's the best wine opener for you?](https://winefolly.com/tips/whats-the-best-wine-opener/) (primer). Supports: Double hinge reduces force needed; One pictured winged model's worm shreds corks; Ah-So and Durand for older natural corks; Electric openers suit arthritis.
8. [How Products Are Made: Corkscrew](https://www.madehow.com/Volume-6/Corkscrew.html) (primer). Supports: Auger versus round-edge wire helix worms; Critics say augers rip out the centre of older corks.
9. [Wikipedia: Wine cork](https://en.wikipedia.org/wiki/Wine_cork) (primer). Supports: Corks 38 mm for simple wines, 44 mm most common, 49 to 55 mm for long ageing.
10. [The Cary Company: Guide to natural wine corks](https://www.thecarycompany.com/insights/guides/natural-cork-guide) (spec sheet). Supports: 44 mm the most common cork length; 750 ml bottles take corks of 38 to 54 mm.
11. [Wine Spectator, Ask Dr. Vinny: Do vacuum pumps work for saving leftover wine?](https://www.winespectator.com/articles/do-vacuum-pumps-work-for-saving-leftover-wine) (specialist review). Supports: Pumps remove little oxygen and may mute aroma; Argon blankets the wine's surface.
12. [Wine Spectator, Ask Dr. Vinny: advice for a Rabbit-style lever corkscrew](https://www.winespectator.com/articles/wine-corkscrew-spiral-worm-problem-advice-55103) (specialist review). Supports: Lever worm coating wears off; replace the worm; Wax-coated corks challenge the worm.
13. [Wine Spectator: Recall issued for Coravin wine-preservation device](https://www.winespectator.com/articles/recall-issued-for-coravin-wine-preservation-device-50166) (other). Supports: Bottle ruptures rose to 13; neoprene sleeve required; Founder calls breakage rare; check bottles for cracks first.
14. [US Consumer Product Safety Commission: Coravin recalls to repair wine access system (2014)](https://www.cpsc.gov/Recalls/2014/Coravin-Recalls-to-Repair-Wine-Access-System) (regulator). Supports: Bottles can break during pressurisation, laceration risk; 13 reports of bottles breaking, one injury; Remedy: neoprene sleeve, warning not to use damaged bottles.
15. [Wikipedia: Coravin](https://en.wikipedia.org/wiki/Coravin) (primer). Supports: Needle through cork, argon refill, cork reseals; 13 broken-bottle complaints by June 2014; sleeve sent to owners.
16. [Coravin: Timeless Six+ product page](https://www.coravin.com/products/timeless-six-plus) (spec sheet). Supports: Designed for natural cork; screw caps with an adapter; Claims wine unaffected for years; about 15 glasses per capsule; Does not reseal synthetic corks; use Pivot instead; Bottle sleeve and aerator in the box.
17. [Coravin: Pivot+ product page](https://www.coravin.com/products/pivot-plus) (spec sheet). Supports: Works with any closure via its own stopper; Claims fresh for up to four weeks; about 20 glasses per capsule; Bottle sleeve and aerator in the box; FAQ: bottles that are cracked or chipped can break.
18. [Coravin: The 4 C's of Coravin care](https://www.coravin.fr/en/blogs/community/coravin-4-cs-closure-clear-clean-cellar) (spec sheet). Supports: Natural, agglomerated, multi-piece or twin-top cork only; Synthetic corks do not reseal; heavy wax can block the needle.
19. [Coravin: Sparkling product page](https://www.coravin.com/products/coravin-sparkling) (spec sheet). Supports: Sparkling saver reseals and recharges the bottle with CO2; Sleeve in the box: pressurised bottles may break if dropped.
20. [Vacu Vin: Meron B.V. lab test of the Wine Saver](https://us.vacuvin.com/pages/vacuvin-wine-saver-meron-lab-test-10-days) (spec sheet). Supports: Brand-published lab test: drinkable when the test stopped at day 10; No-vacuum controls fell below acceptable between days 3 and 7.
21. [Vacu Vin: Original Wine Saver product page](https://us.vacuvin.com/products/original-wine-saver-black-2-stoppers) (spec sheet). Supports: Sends sparkling wine to a separate Champagne saver.
22. [Private Preserve: argon wine preserver spray](https://www.privatepreserve.com/) (spec sheet). Supports: Argon spray claims long keep times through testimonials only.
23. [Rabbit Wine: FAQs](https://www.rabbitwine.com/pages/faqs) (spec sheet). Supports: Lever worm coating wears; flaking means replace; Worn worm stresses the lever; Foil and wax scrape the coating.
24. [The Durand](https://www.thedurand.com/) (spec sheet). Supports: Built to remove fragile corks from older wines intact.
25. [Wikipedia: Sparkling wine](https://en.wikipedia.org/wiki/Sparkling_wine) (primer). Supports: Fully sparkling wines held under several atmospheres of pressure.
26. [Wikipedia: Wine accessory](https://en.wikipedia.org/wiki/Wine_accessory) (primer). Supports: Stoppers, pumps, openers and aerators as one accessory family; Aerators mix air into wine as it pours.
27. [21 CFR 177.2600, Rubber articles intended for repeated use](https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-177/subpart-C/section-177.2600) (regulator). Supports: Extraction limits for repeated-use rubber in contact with food; Covers silicone elastomers.
28. [European Commission: Food contact materials legislation (Regulation 1935/2004)](https://food.ec.europa.eu/food-safety/chemical-safety/food-contact-materials/legislation_en) (regulator). Supports: Materials must not change food taste or odour unacceptably; Labelling for food contact.
29. [Amazon search results: wine opener](https://www.amazon.com/s?k=wine+opener) (retail listing). Supports: Titles carry opener type, hinge, extra spiral; Worm shape seldom in titles; a few say non-stick worm.
30. [Amazon search results: wine preserver](https://www.amazon.com/s?k=wine+preserver) (retail listing). Supports: Titles carry method, electric or manual, and 10 or 15 day claims.
31. [Amazon search results: champagne stopper](https://www.amazon.com/s?k=champagne+stopper) (retail listing). Supports: Some champagne stoppers sold with a built-in vacuum pump; Food-grade silicone claimed without a named standard.
32. [Wikipedia: Bottle opener](https://en.wikipedia.org/wiki/Bottle_opener) (primer). Supports: A lever with a lip lifts crown caps; Mounted, hand-held, bar blade and multi-opener forms.
33. [Amazon search results: bottle opener](https://www.amazon.com/s?k=bottle+opener) (retail listing). Supports: Crown-cap openers sold as bar keys, wall-mounted, keychain and card openers; Some bar keys double as pour spout removers.