The tisane should be made of barley thus: let it be cleaned and boiled until it is broken up, and then strain it, or else put barley in a glass vessel160 full of water, and boil it without smoke. Some people put the following quantity in: 3161 lbs. barley, and 6 lbs of water, others put in 20162 lbs. of water, but there is nothing in it but that it must be boiled down to 2 lb.