As you know, we’re hard at work on a new book right now: The Healthy Hound Cookbook. One of the recent recipes we were working on for that book is just such a great use of your time–and a money-saver–that we had to share it now!
If you are feeding your dog a homemade diet, he needs added calcium unless that homemade diet includes 20 percent raw meaty bones. One way to get that calcium is with a calcium supplement: like eggshell calcium! As the name suggests, eggshell calcium is made from the eggshells (and eggshell membrane) that you’d otherwise discard.
Eggshell calcium is a great way to use those shells you’d otherwise discard. Wash the shells and let them dry on a cookie sheet:
I put the cookie sheet in the refrigerator and let them dry overnight.
Then it’s time to dry them more! Preheat oven to 200 degrees Fahrenheit then bake for 10-15 minutes. Eggshells should be completely dry. (If you washed the eggshells shortly before baking, allow extra baking time. Eggshells must be completely dry before grinding.)
If you’re using a coffee grinder, make sure it’s completely clean before grinding the eggshells; you don’t want any bits of coffee in the eggshell powder!
Grind the eggshells in a clean coffee grinder or a blender until all large pieces are ground to a powder:
Here’s a look at how easily the coffee grinder turns the eggshells into powder:
If you don’t have a clean coffee grinder, a mortar and pestle is also a great way to grind to a powder.
Store in a lidded jar. If you’re feeding a homemade diet, you’ll want to add about one-half teaspoon ground eggshell per pound of fresh food. If you feed both fresh food and commercial food, just add the eggshell to the fresh portion of the meal.