WHATS THE BEST WAY TO STORE FRUITS AND VEGETABLES?
The ABCs of Fresh “The main way to lengthen shelf life is by using cold temperatures to slow food’s respiration, or ‘breathing’ process,” explains Marita Cantwell, PhD, a postharvest specialist at the University of California, Davis. In general, the warmer the temperature, the faster the rate of respiration, which is why refrigeration is critical for most produce. But while you want to slow it down, you don’t want to stop the breathing altogether. “The worst thing to do is seal produce in an airtight bag,” says Barry Swanson, a food scientist at Washington State University. “You’ll suffocate it and speed up decay.” Some fruits emit ethylene, an odorless, colorless gas that speeds ripening and can lead to the premature decay of nearby ethylene-sensitive vegetables. Put spinach or kale in the same bin as peaches or apples, and the greens will turn yellow and limp in just a couple of days. So the fi rst trick is to separate produce that emits ethylene from produce that’s sensitive to it.
