Ok, my best fridge (not the chef rewarded one) doesn't seem to work the first time I buy it, but I never had them cook anything to store as leftovers until they mastered the skill, so it's possible I didn't check in time. Now, it does work but then food spoils as if there was no fridge if the fridge depreciates down to the lowest it can get, which is $1,080 simoleons for the best fridge. Then, I have to take everything out, sell the old fridge and buy a new one, and it works again until the fridge is fully depreciated. This is kind of annoying.
Second, this just happened with my most recent couple, but when they stored perfect French toast in their food replicator, the replicated version came out putrid from the start. I guess the only other time I've had food replicators I've only put crepes and hamburgers in it, so I don't know if it's the machine or the food that's bugged.