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Try Our Breathable Fermentation Bungs

Silicone Barrel Bungs

Silicone Barrel BungsSilicone Barrel BungsSilicone Barrel Bungs
Learn More

Try Our Breathable Fermentation Bungs

Silicone Barrel Bungs

Silicone Barrel BungsSilicone Barrel BungsSilicone Barrel Bungs
Learn More

About Alasco

Cornucopia of barrel bungs. Original vintage Alasco graphic

Our Story

Breathable/Fermentation Bung

Our Products

Welcome to Alasco, your premier source for top-quality silicone barrel bungs. Established in 1959, we have decades of expertise, and are known for crafting fermentation bungs vital to the wine and spirits industry. Trust Alasco for the finest in barrel bung craftsmanship, locally and beyond. We proudly ship our products worldwide to serve customers around the globe.

Wine barrels with bungs

Our Products

Breathable/Fermentation Bung

Our Products

Silicone wine barrel bungs are specialized stoppers used in winemaking to seal the openings of wine barrels. Our bungs are  made from food-grade silicone, a durable and inert material that does not affect the wine’s flavor or quality. The flexibility of silicone allows for a secure, airtight seal, preventing contaminants from entering the barrel and spoiling the wine. 

Dalco Duall Complete - breathable or fermentation bung and solid bung

Breathable/Fermentation Bung

Breathable/Fermentation Bung

Breathable/Fermentation Bung

Breathable barrel bungs, also known as fermentation bungs, are a specialized bung designed to naturally raise and resettle as gases build up during fermentation activity, allowing the gases to release (or burp), while bung remains secure in the barrel, reducing risk of spoilage or contaminants.

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Bungs for Sale

JS Solid standard silicone barrel bung by Alasco.

JS Standard Solid

Dalco Duall Complete

Dalco Duall Complete

Solid silicone barrel bungs with lip

Alasco patented duall breathable fermentation bung and solid silicone bung, Dalco Duall Complete

Dalco Duall Complete

Dalco Duall Complete

Dalco Duall Complete

Breathable fermentation bungs for venting during fermentation process. With this two-piece bung the interior 'lock' shifts up as gases build up, and nestles back down after release. May also be used as solid bung during storage by pushing stopper lock all the way down.

Alasco como bung. Breathable fermentation bung and solid bung. Combo Duall

Combo Duall

Dalco Duall Complete

Combo Duall

Breathable fermentation bungs for venting during fermentation process, may also be used as solid bung during storage.

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San Luis Obispo, California, United States

(805) 543-3008

alasco

(805) 543-3008

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