system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How did people freeze items/ have ice back before freezers?
gpt
Simplest way was to go to areas that were cold, find a frozen lake, and cut out some ice. For example, if we lived near a tall mountain we could send people up above the snow cap, find and cut up some ice, and drag it back down.

Another method was to get as much ice as you could while it was frozen and storing it in a cellar or insulated barn. As long as you keep the ice in a cold place, such as deep basement, it will stay frozen for a long time.