If the item in question was not frozen all the way through after one day in the freezer, it would indeed take longer to thaw if left there for a week instead
Extended freezing, especially in a home freezer, dehydrates food. This could cause it to take longer to thaw, depending on the circumstances of the thawing.
Only if it's something huge and doesn't fully freeze.
Frozen is frozen. If they are at the same temperature throughout and the same weight and mass they will that the same whether frozen for 24 hours, 24 days, or 24 years.
Assuming it has been in the freezer long enough to completely freeze, it shouldn't make a difference. If I have 2 ice cube trays and I put one in the freezer for an hour and the other in front day, the ones that were in there for an hour haven't completely frozen yet, and will therefore melt faster, but if I instead compare ice cubes that were in the freezer for a day and a week, both had enough time to completely freeze and there shouldn't be a difference.
The only way the day-frozen vs week-frozen would thaw faster is if the day-frozen wasn't actually frozen all the way through yet (very likely). If two identical chunks of meat were frozen all the way through, they would thaw at the same speed.
If meat has been frozen for a looooong time (and freezer burned), it would actually thaw faster, because is has less frozen moisture in it after the freezer burn has dehydrated it.
You are correct. Your brother's mistake is that he thinks cold is somehow stored up, and that freezing it longer adds to the amount of cold in the meat.
But once the temperature reaches equilibrium with the freezer, it is the same whether it's in for a day or a week or a year.
Coldness is a subjective quality for something that has less heat than something else. There is no cold substance.
Your submission has been removed for the following reason(s):
Rule #2 - Questions must seek objective explanations
Straightforward or factual queries are not allowed on ELI5. ELI5 is meant for simplifying complex concepts (Rule 2).
If you would like this removal reviewed, please read the detailed rules first. If you believe this submission was removed erroneously, please use this form and we will review your submission.
Twin_Spoons t1_iuar1e1 wrote
You're mostly right with some technicalities:
If the item in question was not frozen all the way through after one day in the freezer, it would indeed take longer to thaw if left there for a week instead
Extended freezing, especially in a home freezer, dehydrates food. This could cause it to take longer to thaw, depending on the circumstances of the thawing.