12 Pack 38mm Growler Caps – Reusable Poly Seal Screw Lids for 1/2 Gallon & 1 Gallon Glass Jugs, Kombucha, Homebrew, Beer Brewing, Cider, Mead, Fermentation – Airtight, Leak-Proof, Black

Keep your homebrew, kombucha, or craft beverages fresh and secure with this 12-pack of 38 mm Poly Seal Growler Caps. Designed for both fermentation and storage, these reusable screw caps feature airtight polypropylene seal gaskets that help retain carbonation and prevent leaks, making them ideal for beer brewing, wine making, kombucha, cider, mead, and more. Compatible with standard half gallon and one gallon glass growlers, Fermentaholics stout bottles, and most store-bought kombucha bottles, these caps are a reliable replacement for lost or worn-out growler lids. The threaded mouth design includes a raised ridge around the entire circumference, offering an easy grip and secure seal every time. Whether you're bottling for fermentation or taking drinks on the go, these lids are built to perform. Made from durable plastic, each cap is built for long-term use and helps reduce waste from disposable caps. The included removable polyseal liners can be gently popped out for hand washing, ensuring easy cleanup and extended usability. Use them to cap growlers during brewery fills, store juices and cold brews, or seal up your latest batch of fizzy kombucha — these lids are up to the task. Perfect for both home and small-scale commercial use, these growler lids provide a dependable, leak-proof closure to keep your beverages fresher, longer.

• 12 Pack 38mm Growler Caps – Includes twelve black 38 mm poly seal screw caps designed to fit standard 38mm 1/2 gallon and 1 gallon glass growler jugs, Tap-a-Draft bottles, and other compatible containers. Great replacement for lost or damaged growler lids in beer brewing, wine making, kombucha fermentation, and more.
• Leak-Proof, Airtight Seal – Each cap features a built-in polypropylene seal gasket that creates a secure, leak-resistant seal. Ideal for preserving carbonation and freshness in homebrew, seltzer, cider, mead, and other carbonated or non-carbonated beverages.
• Threaded Design with Raised Ridge – Ensures a firm grip and reliable seal. Simply add a poly seal cone for a gas-tight fit.
• Reusable and Durable – Made from durable plastic and built for repeated use in brewing, fermentation, or storage. Helps reduce single-use plastic waste. The removable polyseal liner can be gently popped out for easy hand washing.
• Multi-Purpose Uses – Compatible with Fermentaholics stout bottles and standard 38 mm opening bottles, including most store-bought kombucha bottles, growlers, and carboys. Great for bottling and storing beer, wine, vinegar, cold brew, tea, juice, oils, and more. Also ideal for filling growlers at your local brewery or for use during secondary fermentation.