According to The Canadian Encyclopedia, the advent of the plastic used in milk bags by DuPont in the 1960s let dairies phase out glass.
Milk bags are a uniquely (eastern) Canadian concept
- today, 4:14 AM
- nationalpost.com
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According to The Canadian Encyclopedia, the advent of the plastic used in milk bags by DuPont in the 1960s let dairies phase out glass.
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