Why would I can my own tomatoes? Well, almost all food cans have Bisphenol A (BPA) in the lining. That means that BPA, an endocrine disruptor which can mimic estrogen, may leach into the food in those cans and then into the people eating that food. Canada became the first country to declare BPA a toxic substance but still allows it to be used in cans. I cannot imagine why.
