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Produce Keepers

A new wave of “produce keepers” is cramming supermarket shelves, promising to extend the life of fresh produce. But can any deliver on this promise?

What We Learned

A new wave of “produce keepers” is cramming supermarket shelves, promising to extend the life of fresh produce. We tested five such products: two bags, two plastic containers, and one device designed to neutralize ethylene, a gas that accelerates ripening and spoilage. We filled the bags and containers with a pint of strawberries or 15 ounces of baby spinach, then placed them in the...