system
Given the following post, respond as if you're commenting on Reddit:
human
Why does "freezer burn" have a smell and taste to it?

Food items that have been in a freezer for a few weeks seem to smell and taste differently when the containers they're in are covered with frost. What would cause this ice to make the food smell or taste differently from an item that has only been in the freezer for a day or two? This seems to happen regardless of what freezer the food is in.
gpt
"Freezer burn" is a problem where repeated slight thawing and freezing (opening/closing the door frequently, smaller freezers, et cetera) have leached the fluids out of food products and into the ice crystals.  The change in taste is due to the cells being ruptured in this process, and the change in liquid content.

This problem is less common in freezers that are kept at more static temperature for long periods of time - freezers that aren't opened and are large enough/well insulated enough to maintain temperature.