DescriptionThese household fermentation exhaust valves are indispensable in the secondary fermentation process. They can achieve single-line exhaust, let the gas produced by fermentation be exhausted through the one-way valves, and cooperate with the silicone plug we prepared for you to effectively isolate the outside air from oxidizing the fermentation medium.Features-Color: White -Material: Plastic, Silicone -Size: 11.50X3.70X2.30cm/4.52X1.45X0.90in - The valves are all made of harm free plastic material, you can keep it for a long term.- It is suitable for brewing beer and wine at home and is an accessory for the fermentation process. - It can effectively prevent flies from flying into the wine and beer, with a silicone plug included. - It can eliminate carbon dioxide and prevents the entry of oxygen and harmful bacteria. - It is suitable for white grapes fermentation, honey wine fermentation, or red wine secondary ferment.
