The Fermonster is an amazing new fermenter crafted just for fermentation! Keg Factory provided feedback over 2 years of development, and they truly got the design right.
• Effortless Filling & Cleaning: With a large 4' opening, filling is a breeze, and the smooth interior reduces yeast and sediment buildup, making it a cinch to clean.
• Oxygen-Resistant: Made from heavy PET plastic, nearly impermeable to oxygen, just like 2 L soda bottles, ensuring your brew stays fresh.
• Safe & Sturdy: Nearly unbreakable virgin PET plastic is much safer than glass carboys, and the punted bottom helps sediment collect to the sides.
These fermenters are ported but don't come with a spigot. We recommend the FE347 plastic spigot. They're completely air - tight with O - Ring sealed lids. Additional O - Rings and lids are available.
Features:
- 4' inner diameter wide mouth carboy - easy to clean!
- Food grade PET plastic construction is nearly impermeable to oxygen penetration
- No hard to clean dimples or ribs
- Punted bottom
- O - Ring and Lid with one hole is included (Fits #10 Stopper)
- Additional O - Rings and Lids available
- Weight: 0.6 lbs
- Temperature Limit: 140° F
- Height: 9.45 inches
- Diameter: 6.7 inches
- Completely taste and odor free
- Perfect for Beer, Wine, Cider, Mead, Kombucha or any other fermented beverage!
- Please note: the pictured #10 Stopper (FE470VS) and three piece airlock (FE370) are not included.





The Fermonster 1 Gallon Premium Ported Carboy is perfect for homebrewers and fermentation enthusiasts. Use it to make beer, wine, cider, mead, or kombucha. It weighs 0.6 lbs, stands 9.45 inches tall, and has a diameter of 6.7 inches. Its large opening makes filling and cleaning easy, and the oxygen - resistant plastic keeps your fermented beverages fresh.