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I've got moths and this morning found a tin foil top of a milk carton (the bit you peel off after unscrewing the plastic cap) chewed into tiny silver bits.
I thought it must be a rat but found (Google is my friend) that moth caterpillars chew everything - including tin.
Off to my local friendly hardware store (they know me well after 45 years) - traps, sticky pads, spray - I am The Moth Killer!