The airlock cap is not designed to be tight fitting

5 litres respectively if you choose to make 3 batches all at the same time

The bubbler airlocks fit in the grommets creating an airtight seal

creating a seal

- 2 sheets of 4 labels each to label your sloe gin/port when ready

Plastic 1 Litre PET Clear Bottles & Caps - 24 Pack wine making equipment The airlock cap is notA case of 24 one litre clear PET plastic bottles, with 24 caps. Each 1 litre bottle is designed to withstand pressure. These are typically used to make sparkling Elderflower fizz or homemade sparkling cider, any homebrew drink in fact that creates pressure inside the bottle. PET bottles are ideal for this because, as the pressure inside the bottle builds, the plastic becomes tight. You can then 'burp' each bottle occasionally and reseal, to avoid