Eggs shells and diseases
I told a friend I use egg shells in my garden. I rinse and save the shells, then after a while when I have enough I crush and bake them at 350 degrees until they start to turn brown...just before buring.
A friend said egg shells can have diseases like salmonella and botulism bacteria and be transferred to the vegetables I am raising. She said egg shells should never be added to compost and she questioned whether baking at 350 degrees was sufficient to kill the dangerous bacteria.
I can't find any qualified answers online --- you know, real scientific evidence, not just garden gossip. Does anyone know of a source or that has learned evidence whether she is all wet? I don't want to kill my family or guests with "bad eggshells".