Crops can blight, animals can get diseases. I don’t know much about hydroponics but I know that bacteria are a concern. What food source is the most reliable, the least likely to produce less food than expected?

  • Probably not the answer you’re looking for: Afaik if you store grain properly it can last over 30 years. So as long as you’re growing too much to keep your silos full and save, and you store enough, it should be incredibly reliable.