For example, a 10 foot Pipe that is 20 feet long will require an 18-20 feet deep hole and provides a gross interior area of 1,570 cubic feet. Keep in mind that the interior surface is curved ( similar to being in a submarine ), and therefore requires a floor to be installed, which reduces headroom. Simply put, a pipe doesn’t lend itself to being space efficient and comfortable.
Though its light weight and long shelf life are ideal for navigating harsh conditions, freeze-dried food is probably most famous as a cultural curiosity: Like many Americans, I discovered it in a museum gift shop, gawking at the styrofoam-like ice cream that astronauts used to have for dessert. More recently, I encountered it at a disaster preparedness convention in Raleigh, North Carolina, where smiling, gray-haired preppers manned tables piled with plastic bags full of vegetables, meats, and stews.