Is it safe to eat a quiche that has exceeded the best before date by a month but has been frozen since day of purchase?

If the quiche has been properly frozen since the day of purchase and shows no signs of spoilage, it is generally safe to eat even if it has exceeded the best before date by a month. Best before dates indicate quality rather than safety, so the quiche may still be good if it has been stored correctly. Always check for any off smells, discoloration, or changes in texture before consuming. If in doubt, it’s best to err on the side of caution and discard it.