Unlike “use by” labels, which are found on perishable foods like meat and dairy, “best before” labels have nothing to do with safety and may encourage consumers to throw away food that’s perfectly fine to eat.
The United Nations estimates that 17% of global food production is wasted each year; most of that comes from households. In the U.S., as much as 35% of food available goes uneaten, ReFED says. That adds up to a lot of wasted energy — including the water, land and labor that goes into the food production — and higher greenhouse gas emissions when unwanted food goes into landfills.
But the effort is voluntary, and the language on labels continues to vary widely, from “sell by” to “enjoy by” to “freshest before.” A survey released in June by researchers at the University of Maryland found at least 50 different date labels used on U.S. grocery shelves and widespread confusion among customers.
“Our bodies are very well equipped to recognize the signs of decay, when food is past its edible point,” Gunders said. “We’ve lost trust in those senses and we’ve replaced it with trust in these dates.” But not everyone agrees. Ana Wetrov of London, who runs a home renovation business with her husband, worries that without labels, staff might not know which items should be removed from shelves. She recently bought a pineapple and only realized after she cut into it that it was rotting in the middle.
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