There’s a really good app called Prep and Pantry. It allows you to create did inventories, including expiration dates. It scans the barcode too so you don’t have to enter it by hand. This helps me know what I have and lets me plan my meals around when food is expiring. I think it’s about $8, but it’s helped me save a lot of money by not throwing food away.
Freeze-dried food is nothing new. As early as the 13th century, the ancient Quechua and Aymara people of Bolivia and Peru pioneered a form of the process by exposing potatoes to the freezing temperatures of the Andes overnight, then drying them in the sun. In 1937, Nestlé used industrial technology to create the world’s first freeze-dried coffee, and in the 60s and 70s, the US military shipped freeze-dried food rations to the troops in Vietnam.