How to milk foam in the process of milking?

The lower the starting temperature of the foam, the longer it can be operated, and of course, the more delicate it can be, which is one of the reasons why milk needs to be refrigerated. Milk foam is usually the best to do flower drawing when heated to more than 60 degrees. But we use a manual milking machine. The heat will be lost. Heat it to about 70 degrees (don't go any higher, the foam will get thicker if you get higher). The knot of milk