I'm working on the design of my mash tun for all-grain brewing based on the John Palmer book (i.e. website), and there is one detail that I'm having trouble with. The Palmer method for using a picnic cooler as the mash tun calls for copper piping along the bottom of the cooler to extract the wort. I understand that the pipes need to have slots for the wort to drain through, but I'm not sure how wide they should be - or how to make them. Can you buy copper pipe with the slots already cut? If so, what size slots should I be looking for. Or, do I need to cut the slots myself - and again - how? and how wide?
Thanks,
E
Thanks,
E