Feeding chickens their own shells

[Eggcessive]

I keep a pizza pan inside my oven, and I put rinsed egg shells there until I fill it up, or use the oven to bake something. I have found that 5 minutes at 200 degrees F make the shells brittle and they crush very well in a plastic bag. When I fill the bag, they go out to my chickens in a pan. I also use crushed oyster shell, but they will eat the egg shells first.

 

[ChickenLegs13]

I nuke mine in the microwave because it's easier for me to crunch them up if they're dry.
I crunch mine up because I don't want my chickens to think it's ok to eat something recognizable as an egg.

 

[RonP]

I keep a coffee can in the bottom of the oven.

Used egg shells go inside.

When there is a substantial accumulation, I add it to the oyster shell feeder.

No wasted energy, nice dry shells.