silkworm are killed by placing the cocoon in hot water give reason
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43
because there is a worm inside the cocoon so that's why it is boil to kill it . so it will not harm the humans.
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32
When the silkworms are still in their cocoons they are boiled out so that they would die inside. This process is done before the silkworms come out of the cocoons so as to bring out the best silk. After the silkworm dies it becomes easier to unwrap the silk threads.
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