To Prepare Rennet

Method

Take the stomach from the calf as soon as it is killed—do not wash it, but hang it in a dry cool place for four or five days; then turn it inside out, slip off all the curd nicely with the hand, fill it with a little saltpetre mixed with the quantity of salt necessary, and lay it in a small stone pot, pour over it a small tea-spoonful of vinegar, and sprinkle a handful of salt over it, cover it closely and keep it for use. You must not wash it—that would weaken the gastric juice, and injure the rennet. After it has been salted six or eight weeks, cut off a piece four or five inches long, put it in a large mustard bottle, or any vessel that will hold about a pint and a half; put on it five gills of cold water, and two gills of rose brandy—stop it very close, and shake it when you are going to use it: a table-spoonful of this is sufficient for a quart of milk. It must be prepared in very cool weather, and if well done, will keep more than a year.