Why must we turn our jeans inside out to wash them?

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts

Why does my wife make me turn my jeans inside out before they go in the wash? She doesn’t know either. Paul Williams, Argyll

Post your answers (and new questions) below or send them to nq@theguardian.com. A selection will be published next Sunday.

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