Floating just means it is an older egg, not always bad. Floaters need to be broken one at a time into a dish to check them though. If it looks fine, no odor, and the yolk stands up does not break or flatten when put in the dish it is ok. We did this with every egg though and didn’t bother to see if they floated or not because chickens can hide eggs on you so some you gather may not be as fresh as you think!
Thank you for that info. We used to have a few chickens and I know they are sneaky about hiding their eggs sometimes. We were getting more eggs than we needed and they were a bit of an experiment for us, so anything that we didn’t get out of the nest boxes we just got rid of them or gave them to the dogs .