You can do this with store-bought eggs or eggs from the chickens you own.
If the eggs still don’t crumble easily, put them back in your oven for another 2-3 minutes.
Break any bigger pieces apart with your hands so you can fit more eggshells into the bag.
You may also use a meat tenderizer if you want.
Always keep a dish with regular feed in your coop since chickens can’t survive on eggshells alone.
Slowly introduce eggshells into your chicken’s diet so it can get used to the flavor.
Ground oyster shells can be purchased online or at farm supply stores.
