Glass & Plastic Carboys for Home Brewing
Carboys are essential fermentation vessels for brewing beer, wine, cider, and mead at home. Whether you choose a glass carboy for long-term aging or a plastic carboy (PET) for lightweight handling, both options offer reliable fermentation in a range of sizes from 3 to 7 gallons.
Glass carboys are completely non-porous, resisting oxygen exposure and scratches — ideal for primary or secondary fermentation where clarity and sanitation matter. Plastic carboys are made from food-grade PET, offering a safer, shatterproof option that’s easier to carry and clean.
Choosing the right carboy size depends on your stage of fermentation:
- 6.5- and 7-gallon carboys are best for primary fermentation of 5-gallon batches, providing headspace to contain krausen during active fermentation.
- 5-gallon carboys are ideal for secondary fermentation, minimizing excess airspace to reduce oxidation risks.
Still deciding? Read our full comparison: Glass vs. Plastic Carboys – Which is Best for You?
Fermonster Carboys | Big Mouth Bubblers | Fermentation Buckets | Conical Fermenters | Carboy Accessories | Racking/Siphoning Equipment
3 Gallon Glass Carboy
This 3 gallon glass carboy is airtight, easy to sanitize, and will not retain odors—making it ideal for homebrewed beer, homemade wine, or mead. It...
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5 Gallon Glass Carboy
A 5 gallon glass carboy is an airtight, odor-resistant, and highly durable fermenter—perfect for the secondary fermentation of beer or wine. Unlike...
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6 Gallon Glass Carboy
This 6 gallon glass carboy is a classic fermentation vessel trusted by homebrewers and winemakers alike. It’s airtight, easy to sanitize, and odor-...
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6.5 Gallon Glass Carboy
This 6.5 gallon glass carboy is a popular choice for primary fermentation of beer or wine (without grape skins). Its size provides ample headspace ...
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5 Gallon Secondary Glass Fermenter Kit
An easy and complete way to add secondary fermentation to your brew process. A 5-gallon glass carboy with bung and airlock for a plug-and-play seco...
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Big Mouth Bubbler® EVO 2 - 6.5 Gallon Glass Fermentor
The fermentor that started it all, reinvented again! We've taken the revolutionary Big Mouth Bubbler® glass and re-engineered it with the help of w...
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Big Mouth Bubbler® EVO 2 - 5 Gallon Glass Fermentor
The fermentor that started it all, reinvented again! We've taken the revolutionary Big Mouth Bubbler® glass and re-engineered it with the help of w...
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Little Big Mouth Bubbler®
The perfect small batch primary fermentor. The Little Big Mouth Bubbler® fermentor holds 1.4 gallons - offering nearly half a gallon of extra heads...
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Small Batch 1 Gallon Fermentor
Our ready-to-brew fermentor adds capacity to our Small Batch Starter Kit. More fermentors = more beer! Includes a one gallon glass jug with threade...
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1/2 Gallon Clear Glass Beer Growler Jug
Individual 1/2 gallon glass screw-top jug. Seal with a #6 drilled stopper, #6 solid stopper, or a 38mm screw cap, sold separately. Not rated for pr...
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Siphonless Little Big Mouth Bubbler® Glass Fermentor
Eliminate the need for siphoning with our new small batch glass fermenter! Attach your bottle filler to the spigot and bottle directly off the ferm...
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1 Gallon Clear Glass Jug
1 gallon glass screw-top jug. Great for fermenting small batches of beer, wine, or mead, or storing overflow from a larger batch. This is the same ...
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