25 litre brewing bucket, 2 x 5 litre brewing buckets plus 3 fermentation airlocks for homebrewing by Almost Off Grid. All 3 fermentation vessels come complete with tight fitting lids, pre-bored with holes and fitted with a rubber grommets. The rubber grommets ensure that, when the airlocks are fitted into the lid holes, they create a tight seal. The three airlocks are designed to allow air out of the buckets during fermentation without allowing fruit flies or contamination in. The red caps are designed to be loose fitting rather than airtight. Having larger and smaller buckets makes brewing from scratch far easier. Very often when you are making beer, wine, cider or mead, you include fruit or flowers in the first bucket and then strain into a smaller vessel after the first fermentation. Crafted from high-quality, food-grade materials, our fermentation buckets are sturdy and built to last. They can be reused multiple times to make your own beer, cider, mead and wine.