[quote="firstimegardener"]Thanks! I'm going to try baking them in the oven just in case, ... [quote]
I hope this doesn't sound judgemental, it's not meant to be.
That (baking the eggshells) seems like a waste of resources to me. If you feel the need to "sterilize" the eggshells by cooking them, how about just zapping them in the microwave for a minute or two?
Or, you might just lay them in the sun, and let the UV rays cook any possible pathogens.
I applaud your concern for safety... but I think you can keep your compost "free", by using little (or no) electricity to make it.