Genuinely didn't know': UK prepper learns canned meals are safe straight from the can

A UK prepper asked on Reddit r/UKPreppers which supermarket foods remain safe to eat when cooking power is unavailable. The thread centered on canned products, with commenters saying standard store tins can be eaten straight from the can because the contents are already cooked. They contrasted this with home-canned goods, which may require simmering for 8–10 minutes to be safe. Participants also pointed to microwave rice packets that can be served hot or cold from the packet, plus items such as beans, canned meals, fruit, custard, rice pudding, and macaroni and cheese. The takeaway emphasized keeping commercial canned food and adding microwave options, while any backup stove use should include ventilation and carbon monoxide precautions.