[Lilafernim]

I definitely think they are ear mites

This is what it says online about them:
“Ear mites are the most common type of mite in hamsters. They can often travel to other parts of the hamster once their numbers become too many. These mites often look like little black dots moving along their fur. You can also sometimes see tiny red mites on hamster skin as the mites are not always the same color.”

This would explain why after you clean, they’re still there as they are inside the hamsters ears.

When I say clean the food, I just mean wash any that don’t crumble under water a rinse to remove eggs from mites.

Also, for paper bedding you can just use chopped up toilet or kitchen roll.

If they are still present after all of this, you should go to the vets. I know what you are saying, but with mites they only reproduce and become worse and there is no commercial cure. I tried online tactics that I found online for my robo, like I said, but the only thing that worked was the vets medication.

Just put a hot water bottle under the carry cage maybe?