0 0 0 Cooking 25 Powdered Foods That LAST FOREVER! Scott Admin posted on 4 years ago — updated on 1 second ago 666 views Here are 25 different powdered foods and spices that last a really long time! About a 30 year shelf life. Many of them you have probably never heard of! apocalypse herbs dehydrator veggies pandemic hurricane blizzard storm Scott Follow Author, educator, musician, dancer and all around creative type. Founder of "The Happy Now" website and the online jewelry store "Silver and Sage".