Mulberry silk is always considered as the most expensive type of natural silk. Its smoothness and stronger fiber, both show the unique characters of it. What makes it so expensive and why is it superior to other types of silk? Let me start by telling how mulberry silk is made.
Mulberry silk is made from the silkworms of the Bombyx mori moth. The moth has one job to do and that is to lay eggs. After it lays about 500 eggs, its job is finished and it dies. The tiny pinpoint size eggs are kept at 65 degrees Fahrenheit with the temperature slowly and carefully raised to 75 degrees Fahrenheit to hatch the eggs.
The tiny silkworms that are born are then fed an exclusive diet of mulberry leaves 24 hours a day, 7 days a week (mulberry leaves are the only food the Bombyx mori moth will eat). After about a month of the constant gorging on the mulberry leaves, the silkworms will have increased their weight about 10,000 times and will have built up enough energy to start spinning their cocoon. It takes anywhere from three to as long as eight days for the silkworm to weave the cocoon.