Air locks are suitable for a variety of fermentation projects. This is a short list: brewing craft beer, wine, sauerkraut, kimchi, hard cider, fruit wine, rice wine, broccoli, carrots and ginger, kimchi. The 3-piece airlock for fermentation is made of pp plastic without bpa. The grommets made of silicone. It keeps your food super healthy and probiotic. Each airlock is made of crystal-clear, strong plastic with a foam insert to prevent damage during transport. A 1/2" hole in the fermenter lid.

Then insert the black grommet into the cover hole. Place the tapered tip of the airlock into the grommet hole to seal the bottle. The air brake kit allows air bubbles to escape during the fermentation process while preventing oxygen from damaging your fermentation and beer brewing. The 3-piece airlock can be removed and completely cleaned with a small brush. Worry free if you are not absolutely satisfied with your purchase, we will initiate cash back.. For additional information regarding the product, please contact with DuBuy support team.