






🍷 Seal the deal on your next batch with Fermentology’s ultimate carboy caps!
Fermentology Carboy Caps are premium silicone lids designed to fit 3, 5, and 6-gallon glass fermenting jugs. Each cap features dual tube connections compatible with common brewing accessories and includes sealing caps to create airtight seals, replacing traditional corks. Made from food-safe, BPA-free silicone, these dishwasher-safe caps come in a convenient 4-pack, ideal for homebrewers crafting wine, beer, mead, kombucha, and more.









| ASIN | B09BWPSDGN |
| Brand | Fermentology |
| Customer Reviews | 4.6 4.6 out of 5 stars (334) |
| Date First Available | 30 January 2025 |
| Item Weight | 199 g |
| Material | Silicone |
| Model Number | FTLGYCBC4 |
| Package Dimensions | 12.7 x 10.2 x 6.6 cm; 199 g |
E**E
Good fit on a 20ltr glas bottle
B**N
kargo çok hızlı ve ürün başarılı
B**E
These carbon caps work very well easy to install and clean. I have several different mugs of carboys including a few old 5 gal water bottles each one sealed very securely
J**G
These silicone carboy caps are excellent, easy to use and provide a tight seal, they stretch and seal around the carboy opening. These caps are a quality product. I use them on the 11.5, 19, and 23 liter carboys made in Italy and Mexico , no issues at all. Some wine when it has a little of residual sugar content left may creature pressure and pop caps off the carboys because of the tight fit. In these cases I will then stretch an elastic band around the cap to give it greater holding power.
T**G
Bought these and they fit very well on the carboy. Sit in place and don't pop off. I prefer these over any other bung I have. A modern and effective take on cork/hard Silicone bungs.
Trustpilot
2 weeks ago
1 week ago