How Do Silkworms Produce Silk

How do silkworms make silk?

Silkworms spew out fibroin through small holes in their jaws to make silk. The fibroin consists of digested leaves and protein. Silkworm produces up to 1200 silken threads within 72 hours, which helps create a soft, silver cocoon. And then, silk farmers harvest the threads with steam. Thus, the delicate fibers are spun and woven into silk fabrics. Silkworms produce fibroin with their salivary glands. Silkworms create cocoons by rotating repeatedly for up to 72 hours. Each cocoon produces one kilometer of silk fiber, on average. Silk farmers put cocoons into steaming water and carefully unwind the cocoon fibers. Moths lay eggs. Caterpillars hatches out of the eggs. The silkworms are fed mulberry leaves, producing the finest silk on the market. As long as the silkworm reaches a maximum weight and height, it will change color and prepares to spin its cocoon.

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