Rehydrating Garlic and Onion Powder Without Sacrificing Flavor When reaching for a jar of garlic or onion powder in the pantry, it's likely been dehydrated to preserve its flavor and aroma for months or even years.
However, this process can lead to a diminished flavor profile in dishes if not rehydrated properly.
Dehydration concentrates the natural compounds found in garlic and onion powders, particularly volatile oils responsible for their characteristic flavors.