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Some bags are porous or perforated to allow the hot water to contact the food: rice, noodles, etc. Grocery stores are the single largest supplier of single-use plastic bags.

Bag-in-box packaging is often used for liquids such as box wine and institutional sizes of other liquids.

Medical uses

Plastic bags are used for many medical purposes. The non-porous quality of plastic film means that they are useful for isolating infectious body fluids; other

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