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Of these, one contained at least 26,000kg of pellets, while the others were carrying goods such as clingfilm, tyres and tomato sauce.

The two notebooks were wrapped in clingfilm inside their archive box, and appeared undamaged.

Soft, or flexible, plastic - the kind you can scrunch up in your hand - includes everything from shopping bags to clingfilm.

But he said he’s barely thrown anything out since his stay began, and has only needed to order in a few extras like sticky tape and clingfilm.

Cover with clingfilm and freeze for at least 1 hour, or up to a month.