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FastRack 5 Gallon Clear Italian Glass Carboy, Fits #7 Stopper Review (2026)

Updated September 21, 2026 · Research-based review

Our verdict

A straightforward Italian glass carboy for brewers who want a glass fermenter without a bundled kit. It suits long secondary aging where oxygen barrier matters, but you need to source your own number 7 stopper and airlock, and a full carboy is heavy to lift alone.

FastRack's 5 Gallon clear Italian glass carboy that fits a #7 stopper, a quality vessel for aging beer and wine.

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What we liked

  • + Italian glass is known for good clarity and even wall thickness
  • + Fits a #7 stopper, so matching airlock bungs are easy to find
  • + Great for long aging where oxygen barrier matters

Trade-offs

  • - Stopper and airlock are not included in this listing
  • - Full carboy is very heavy and needs a handle or carrier

What it is

This is a 5 gallon carboy made from Italian glass, sold as a bare fermenting vessel rather than a full kit. The neck opening is sized to accept a number 7 stopper, which is the standard size used across most homebrew airlocks and bungs, so matching parts are easy to find at any brew shop. The body has a wide enough mouth for a funnel and cleaning brush, and the base carries a non slip texture so the jug sits steadier on a counter or floor than an older smooth bottom design. A faint mold seam line running down the glass is normal for this manufacturing process and is cosmetic rather than a defect. Buyers should treat the carboy as the vessel only, since the stopper, airlock, and any carrying strap or handle are separate purchases from the same or other brands.

Who it fits

This carboy fits brewers and winemakers who already own an airlock and bung from a previous carboy or kit, and just need a replacement or second vessel for secondary fermentation and aging. Glass is the right choice when a beer or wine is going to sit for weeks or months, since glass is essentially impermeable to oxygen compared with plastic buckets or PET carboys that can slowly let air in over long storage. It is less suited to brewers who want one purchase that includes everything, since this listing does not bundle a stopper, airlock, or carrying handle. Anyone just starting out and wanting a single box solution should look at a bundled starter kit instead, then come back to a bare carboy like this one for a second fermenter once they know what accessories they prefer.

Strengths

Italian glass has a long track record in the homebrew and winemaking world for having even wall thickness and good clarity, which matters both for checking on fermentation visually and for avoiding weak spots that can crack under thermal stress. Fitting a standard number 7 stopper is a real practical advantage, since it means the carboy is not locked to a proprietary bung size and can use airlocks, blow off tubing, or drilled stoppers for temperature probes from almost any brewing supplier. For beers or wines that need extended aging, such as barleywines, meads, or big reds, the oxygen barrier that glass provides over plastic is a genuine quality benefit, helping avoid oxidation flavors that can dull a beer or wine over many months in the vessel.

Trade-offs

The most immediate catch is that this listing is glass only. New brewers sometimes order it expecting a stopper and airlock in the box and are caught off guard when none arrives, so budget for those extras before brew day. A full 5 gallon glass carboy is also heavy, typically well over 40 pounds once filled with wort or must, and glass offers no give if dropped or knocked against a hard edge, unlike a plastic bucket or PET carboy. Because of that weight and fragility, a lot of brewers who choose glass also buy a padded carrier or at minimum keep the carboy in a low, stable spot rather than lifting it up onto a shelf. Cleaning also takes a bottle brush or carboy cleaning tool with a long enough handle to reach the base of the curved body.

Bottom line

As a plain glass carboy, this is a solid pick if you specifically want Italian glass and a number 7 neck so you can reuse or standardize on the airlocks and stoppers you already have. It is not the right choice if you are assembling your first fermentation setup and want a single purchase that covers the vessel plus the small parts, since you will need to add a stopper and airlock separately to actually use it. Treat it as a long term vessel purchase rather than a kit, move it carefully once full, and it should give reliable service for years of secondary fermentation and aging across beer, wine, or kombucha batches.

Frequently asked questions

Does this carboy come with a stopper and airlock?

No, this listing is for the glass carboy only. You need to buy a number 7 stopper and an airlock separately, though they are widely available since number 7 is a common size.

What size stopper does it use?

It uses a number 7 stopper, which is one of the more common bung sizes used across homebrew carboys and fermenters.

Is glass or plastic better for a fermenter?

Glass resists scratching and is essentially airtight, which helps during long aging, while plastic is lighter and more drop resistant. Many brewers use plastic for primary fermentation and glass for secondary or aging.

How heavy is a full 5 gallon glass carboy?

A full carboy weighs somewhere around 45 to 50 pounds once filled with liquid, so it takes care and often two hands or a carrier to move safely.

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