my cat only answers to a whistle that is
a rising tone from about 1800hz to about 2300hz. that works every time and there is no other way to call my cat.
assuming the food was cooled properly it should be safe to eat for years but taste/texture might deteriorate, especially if not in airless containers some fats react with oxygen that affects the taste.
Also often the preferable way to defrost would be to just throw it in oven/pan/microwave.
pollution, destruction of nature, illegal mining operations, destruction of property, stealing and animal abuse