10 Ways To Preserve Food Without Electric Refrigeration
- Salt
- Oil
- Vinegar
- Sugar
- Alcohol
- Fermentation
- Drying
- Smoking
- Canning
- Root Cellars (natural refrigeration)
Check out the book on Amazon called Preserving Food Without Canning or Freezing. This is an affiliate link, but I personally own this book and love it. Plus it comes with a bunch of wonderful recipes.