Best Plastic Carboys for Homebrewing (2026)
Updated How we research
Plastic carboys, usually made from PET, offer the carboy shape with a fraction of the weight and none of the shatter risk of glass. That makes them easy to lift, carry, and store, which is a real advantage on a full fermenter. Look for food-grade, BPA-free construction and a shape that fits your carrier and cleaning brush. Because the surface can scratch more easily than glass, use soft cleaning tools and avoid abrasive scrubbing so the interior stays smooth and sanitary batch after batch. Plastic carboys suit brewers who want carboy-style fermentation without the weight and breakage worries, including those who move fermenters frequently. They are slightly more oxygen-permeable than glass, so they are excellent for primary fermentation and shorter conditioning rather than very long aging. Choose a size with headspace for active fermentation, and retire the vessel once it develops scratches that could harbor bacteria. Handled gently, a plastic carboy is a light, practical, and safe alternative to glass for everyday brewing.
The short version
We compared 7 picks. Our scores range from 7.0 to 8.4 out of 10.
- Best overall:Northern Brewer Big Mouth Bubbler PET Plastic Carboy, 6.5 Gallon Ported. Highest overall score in this guide at 8.4/10.
- Also great value:Fermonster PET Plastic 6 Gallon Wide Mouth Carboy with Extra Drilled Lid. Value score of 8/10, overall 8.4/10.
- Solid build:Fermonster 6 Gallon Wide Mouth Plastic Carboy. Build and materials score of 8/10, overall 8.1/10.
- Feature-rich:3 Gallon Fermonster Wide Mouth Plastic Fermenter with Spigot and Airlock. Features score of 8/10, overall 8.0/10.
Scores are our editorial assessment, not customer ratings. How we score
Northern Brewer Big Mouth Bubbler PET Plastic Carboy, 6.5 Gallon Ported
Northern Brewer's Big Mouth Bubbler PET plastic carboy, 6.5 Gallon and ported for a spigot, for light, shatter-free fermentation.
Our score8.4/10Budget
Fermonster PET Plastic 6 Gallon Wide Mouth Carboy with Extra Drilled Lid
Fermonster's 6 Gallon wide mouth PET plastic carboy with an extra drilled lid for airlock or thermowell use.
Our score8.4/10Budget
#1Northern Brewer's Big Mouth Bubbler PET plastic carboy, 6.5 Gallon and ported for a spigot, for light, shatter-free fermentation.
Fit for the job 9/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10
- + PET plastic is shatterproof and much lighter than glass
- + Ported design accepts a spigot for easy transfers
- + 6.5 Gallon capacity suits primary fermentation with headspace
- - PET can scratch with abrasive brushes, so clean gently
- - Spigot may not be included with the ported carboy
#2Fermonster's 6 Gallon wide mouth PET plastic carboy with an extra drilled lid for airlock or thermowell use.
Fit for the job 9/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10
- + Wide mouth opening is easy to clean by hand
- + Extra drilled lid adds flexibility for airlocks, thermowells or blow-off tubes
- + 6 Gallon PET body is light and shatterproof
- - Lid seal must be tightened properly to avoid slow leaks
- - Plastic should not be cleaned with abrasive pads
#3Fermonster's 6 Gallon wide mouth plastic carboy, a lightweight, easy-clean fermenter for five gallon batches.
Fit for the job 9/10 · Features and specs 7/10 · Build and materials 8/10 · Value 8/10
- + Wide mouth lets you clean the inside by hand without a bent brush
- + 6 Gallon capacity handles primary fermentation with room for foam
- + Plastic body is shatterproof and far lighter than glass
- - Base listing has no spigot or airlock, so add those separately
- - Ribbed walls can trap residue in the grooves when cleaning
#4A 3 Gallon Fermonster wide mouth plastic fermenter with spigot and airlock for small batch beer, cider and mead.
Fit for the job 8/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10
- + 3 Gallon size is ideal for small batch recipes and experiments
- + Spigot and airlock included, so it is ready for fermenting and bottling
- + Wide mouth makes adding fruit and cleaning simple
- - Too small for standard five gallon beer batches
- - Spigot adds a part that needs careful sanitizing
#5Home Brew Ohio's FerMonster 6 Gallon fermenter, the popular wide mouth plastic carboy sold by a homebrew retailer.
Fit for the job 9/10 · Features and specs 6/10 · Build and materials 8/10 · Value 8/10
- + FerMonster wide opening simplifies cleaning and dry hop additions
- + 6 Gallon volume gives headroom for vigorous primary fermentation
- + Sold by a homebrew shop, so accessory matching is straightforward
- - Check whether the lid and airlock are included before ordering
- - Plastic needs soft cloths, since scratches can hide bacteria
#6The Bubbler 6 Gallon PET plastic carboy fermentor, a lightweight alternative to glass for primary fermentation.
Fit for the job 8/10 · Features and specs 6/10 · Build and materials 7/10 · Value 8/10
- + 6 Gallon PET carboy gives headspace for primary on five gallon batches
- + Lightweight plastic is safer to move than glass
- + PET is a good oxygen barrier compared with bucket fermenters
- - Cannot use hot water or harsh scrubbing without damaging it
- - Check whether an airlock and bung are included before ordering extras
#7The Bubbler 5 Gallon PET plastic carboy fermentor, a light secondary vessel with minimal headspace.
Fit for the job 7/10 · Features and specs 6/10 · Build and materials 7/10 · Value 8/10
- + 5 Gallon size minimizes headspace for secondary conditioning
- + PET plastic will not shatter if it slips from wet hands
- + Light enough to carry to the fridge even when full of beer
- - Too small for primary on five gallon batches with active krausen
- - PET warps if exposed to hot cleaning water
Before you buy: trade-offs we flagged
No pick is perfect. These are the main compromises we noted for the top products in this guide, so you can check they will not matter for you.
- PET can scratch with abrasive brushes, so clean gently (Northern Brewer Big Mouth Bubbler PET Plastic...)
- Lid seal must be tightened properly to avoid slow leaks (Fermonster PET Plastic 6 Gallon Wide Mouth...)
- Base listing has no spigot or airlock, so add those separately (Fermonster 6 Gallon Wide Mouth Plastic Carboy)
- Too small for standard five gallon beer batches (3 Gallon Fermonster Wide Mouth Plastic...)
- Check whether the lid and airlock are included before ordering (Home Brew Ohio FerMonster 6 Gallon Fermenter)
- Cannot use hot water or harsh scrubbing without damaging it (The Bubbler 6 Gallon PET Plastic Carboy...)
Frequently asked questions
›What is the best choice among plastic carboys for homebrewing (2026)?
Northern Brewer Big Mouth Bubbler PET Plastic Carboy, 6.5 Gallon Ported is our top overall pick. Northern Brewer's Big Mouth Bubbler PET plastic carboy, 6.5 Gallon and ported for a spigot, for light, shatter-free fermentation. It earns our score of 8.4/10, based on fit for the job, features, build and value.
›What is a good budget option?
Fermonster PET Plastic 6 Gallon Wide Mouth Carboy with Extra Drilled Lid is the strongest low-cost pick in this guide. Fermonster's 6 Gallon wide mouth PET plastic carboy with an extra drilled lid for airlock or thermowell use.
›How much should I expect to spend?
Picks in this guide span $ price bands (roughly: $ = under $30, $$ = $30 to $100, $$$ = over $100). We never display exact prices because they change constantly, so the buttons above always show Amazon's current price.
›How were these products chosen?
We shortlist products that fit the job this guide solves and compare their published specifications, such as size, capacity, materials and what is included. Each pick gets an editorial score out of 10 for fit, features, build and value, and we write the pros and cons from those details. Our score is not an Amazon customer rating. We earn a commission if you buy through our links, which never affects the ranking.
Home Brew Craft independently selects every product; we may earn a commission from links above.
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