why are the cocoons stifled
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Stifling treatments are applied to silk cocoons in order to kill the pupae, preventing the emergence of moths and allowing to preserve the silk during long periods of time. All of them involve the application of aggressive steps, such as sun exposure, hot steam from boiling water or hot air, during hours or even days......☑️☑️
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The stifled cocoons in the unfavorable seasonal condition where it becomes difficult to obtain silk naturally . Then the cocoons are stifled at 90 ⁰ of stream for around 20 minutes . Then the shades are dried out in the thin layers in the ouder to reduce the moisture .
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