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All the packaging around us is made of #plastic. These are the protective layers of aluminum cans and paper cups.
The plastic film on the paper cup prevents it from getting wet and maintains the temperature. And the #food grade polymer varnish on an aluminum can prevents the drink from coming into contact with rusty metal.
Investigate
The plastic film on the paper cup prevents it from getting wet and maintains the temperature. And the #food grade polymer varnish on an aluminum can prevents the drink from coming into contact with rusty metal.
Investigate