Add Yahoo as a preferred source to see more of our stories on Google. Broccoli florets arranged on a baking sheet lined with parchment paper, with additional florets in a zip-top bag. Look for heads ...

Freeze-drying, also known as lyophilization, is a form of dehydration. Food is first frozen, then dried under pressure to remove its water content. It is widely believed that freeze-drying is the best ...