“Think of how big the frozen hash brown and french fry section is. Potatoes are a huge commodity, and as long as you bake the frozen potatoes, you're not sacrificing nutrients,” says Lori. Also, when French fries are in your freezer you can have French fries anytime.
Vegetables should almost always be washed, but some take more scrubbing than others. “There's so much dirt inside the leaf, it's really hard to clean them properly. If you can find frozen or canned, you don't have to deal with the nuisance of triple washing it,” says Lori. That means less hand-washing, too. Which, well, you weren't going to do that anyway.