Of course it depends how much fizz you like but with kits I used to prime a 23L batch with 80g of cane caster sugar and this was plenty carbonated for me.
Does anyone have an idea whether silicone hose will significantly reduce my heat losses over all copper tube plumbing ? I dont have miles of the stuff but I'm wondering if having it all hard plumbed means that everything in the rig acts as one huge thermal mass and makes the job of maintaining...
