Fermentation Screw Cap with Airlock Hole for Compatible 1-Gallon Jugs, Small-Batch Brewing, Winemaking, Cider, Mead, Kombucha, and DIY Fermenting
This 38 mm screw cap with airlock hole is designed for small-batch fermentation using compatible 1-gallon jugs and fermentation containers. The integrated hole allows easy installation of a compatible fermentation airlock, helping create a controlled fermentation setup for wine, beer, cider, mead, kombucha, and other DIY beverage projects.
Once fitted with a compatible airlock, the cap allows carbon dioxide to escape during fermentation while helping reduce oxygen exposure, dust, and airborne contaminants from entering the vessel. Durable, reusable, and easy to clean, this cap is a practical addition to any homebrewing or winemaking setup.
Made in Canada, this 38 mm fermentation cap is ideal for compatible jug openings, small-batch fermentation, and home beverage-making projects where an airlock connection is required.
Key Features
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Size: 38 mm / 1.5 in.
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Screw Cap with Hole: Designed for compatible airlocks and fermentation setups.
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Integrated Airlock Hole: Allows easy installation of a compatible fermentation airlock.
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Fits Compatible 1-Gallon Jugs: Ideal for small-batch brewing, winemaking, and fermentation projects.
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CO₂ Release Support: Allows fermentation gases to escape when used with a compatible airlock.
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Oxygen Exposure Reduction: Helps reduce oxygen contact during fermentation when properly fitted.
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Easy Screw-On Design: Threads onto compatible jugs for a simple, secure setup.
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Reusable Construction: Made for repeated use when properly cleaned and maintained.
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Easy to Clean: Simple design supports quick cleaning between batches.
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Made in Canada: Manufactured for reliable fermentation use.
Common Uses
Use this 38 mm screw cap with airlock hole for 1-gallon jug fermentation, homebrewing, winemaking, cider making, mead making, kombucha, small-batch fermentation, airlock setups, DIY fermenters, and compatible glass or plastic fermentation jugs.
Best For
- 1-gallon glass jugs
- Small-batch fermentation
- Wine making
- Beer brewing
- Cider making
- Mead making
- Kombucha
- DIY fermenters
- Airlock setups
- Compatible 38 mm jug openings
- Homebrewing and winemaking projects
Frequently Asked Questions
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Q: What is this screw cap used for?
A: This screw cap is used with compatible 1-gallon jugs and airlocks to create a small-batch fermentation setup.
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Q: What size is the cap?
A: The cap is 38 mm / 1.5 in.
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Q: Does this cap include an airlock?
A: No. The cap has a hole for a compatible airlock, but the airlock is sold separately unless the listing specifically states otherwise.
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Q: Can this be used for winemaking?
A: Yes. It is suitable for compatible small-batch wine fermentation using 1-gallon jugs.
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Q: Can this be used for beer, cider, mead, or kombucha?
A: Yes. It can be used for compatible beer, cider, mead, kombucha, and DIY fermentation projects.
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Q: Does it fit all 1-gallon jugs?
A: No. Fit depends on the jug’s neck finish and thread style. Confirm compatibility before ordering.
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Q: Is this cap reusable?
A: Yes. It can be reused when properly cleaned, sanitized, dried, and inspected between batches.
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Q: Is this cap made in Canada?
A: Yes. This screw cap is made in Canada.
Important Use Notes
- Use only with compatible 38 mm jug openings.
- Airlock is sold separately unless specifically included.
- Confirm cap thread, jug opening, and airlock compatibility before use.
- Clean before first use.
- Sanitize before beverage or fermentation contact.
- Inspect before each use and do not use if cracked, warped, damaged, or loose.
- Store clean and dry between uses.
- Not intended for pressure-building or sealed carbonated beverage storage.
- Use a compatible airlock during active fermentation to allow gas release.
