It's actually been used as a way to preserve food in the past, often as a kind of watertight plug or seal to keep food from going bad. Here's a great example:

It's actually been used as a way to preserve food in the past, often as a kind of watertight plug or seal to keep food from going bad. Here's a great example: https://www.youtube.com/watch?v=SdKzWQOVET4 https://www.youtube.com/watch?v=SdKzWQOVET4