The Shelf Life of Garlic and Onion Powder: Separating Fact from Fiction When it comes to preserving flavor and convenience in home cooking, garlic and onion powder have become staples in many pantries.
Their shelf life can be a mystery unless you understand the underlying factors at play.
Understanding Garlic and Onion Powder Basics Garlic and onion powder are often misunderstood as being interchangeable with dehydrated garlic and whole onions.