Hot Fill Wine/Wort Cask Bladder - 20 L
This triple-layer 20 L Wine/Wort Cask Bladder has a number of uses, and they are useable too! They are able to withstand liquids up to 100 C, which means you can make your wort and store it for up to 2 years. The benefit of this is that if your fermenters are currently in use, you can still make your wort and store it until you have an empty fermenter to continue brewing.
You will have to sterilize this bladder (which can be done by boiling it) if you plan on reusing it.