[luqtas]

a 500 ml Al can weights 13 grams. life knows if we can skim down its weight if we don't have self openers, the price if we develop a better recycling system etc.

if plastics have impact on human health, how many $ we can save for using re-usable glass and metal?

[thfuran]

Aluminum cans are lined in plastic.

[alexey-salmin]

I think it's about steel cans?