Continuation…..
almost resist complete unwinding. Depending on sex and species, the cocoons measure from one to 1.5 inches long and 0.5 to one inch in diameter.
Harvested cocoons are sorted; all thin-shelled and unreelable ones are artificially heated overnight at 86 degrees centrigrade to kill the pupae.
A dried cocoon produces a light throbbing sound when shaken and weighs only half of the 2.5 gram weight of a fresh cocoon.