Yida Silk Workshop Cocoon Boiling Machine 2

The stove is also used to boil cocoon. Cocoons will be boiled for 18 minutes at the temperature of 100℃ and then cool down to 58-60℃ to pick up silk head. For the second time of boiling, the temperature is around 98-100℃. Because silkworm cocoon contains sericin the process of cooking cocoon is to soften the sericin so as to find the silk head.