SUPERMARKETS encourage shoppers to buy products through clever layouts and cunning promotions. Packaging presents items in an alluring way. It also keeps them clean and safe to eat. Green types balk at plastic-encased bananas. But some forms of packaging, especially for meat, can be an environmental boon.

SUPERMARKETS encourage shoppers to buy products through clever layouts and cunning promotions. Packaging presents items in an alluring way. It also keeps them clean and safe to eat. Green types balk at plastic-encased bananas. But some forms of packaging, especially for meat, can be an environmental boon.