Do you use raw or cooked egg shells ground up? Thought I'd start collecting, pulverizing and freezing some.
??
JustMe: This is what I do: When family is having eggs for breakfast, I save the cracked up egg shells. Then I rinse them slightly. Drip-dry a bit. Stick everything in a shallow baking pan (like a cookie pan) and heat in oven in 325-350 deg F heat for 5 - 8 mins. This is just to bur off any residue chems they may have used to rinse the eggs with... (In the summer I would just "bleach" them under the hot sun for 2 hours). Then I remove them, crush them and grind them. Initially, when I did not yet discover the coffee grinder, I used to do exactly what lesleik does - put them in a zipock bag and roll with a rolling pin.
Then I discovered that I could grind them in my coffee grinder

that's what i do. rinse and save all egg shells, and then process and store. coffee grinders rock!
the Dot dog doesn't need her shells ground all the time. i can just crack an egg over her food and drop the shell in also (organic free range) and if i happen to drop one on the kitchen floor, she's got clean up duty
