Freeze-Dried food is an important part of an emergency/Survival preparation. Even when your goal is to be sustainable this option gives you alternatives to what you can produce yourself. What if you suddenly have more guests than planned for? This food will get you through until you can increase production enough to accommodate everyone. Freeze-drying food is an excellent way to preserve food because it retains nutrition, texture, and color that other methods don't. It also has the longest shelf-life of preserved food. Stored properly it can last up to 25 years! It must be frozen quickly under a vacuum and the cost of the machines is out of reach for most consumers. Purchasing freeze dried food is the most economical route for the average prepper. It is great for go bags, auto, or office kits and excellent for camping because of the light weight. Keep individual packets in your specialty go bags or stock buckets for your long term pantry. This is an essential addition to any survival or emergency preparedness situation. While it is more expensive than preserving your own supplies, it may be some peoples only option for quick preparation. Use it as a tool in your total sustainability plan.