Why Use your Egg Shells?

Have you ever stopped to think how much effort goes into making an egg? The process of laying an egg takes between 24-26 hours, with most of the actual formation happening overnight. The creation of the eggshell makes up the longest portion of egg formation. In fact, a whopping 20 hours of that 24-26 hours is spent forming the shell. Obviously an egg needs a nice, thick, strong shell to protect the inside of the egg from bacteria and also to keep a developing chick safe. Nutritionally an egg shell consists mostly of calcium carbonate, a common form of calcium. The rest is made up of protein and other minerals.

So after all that effort surely its not right to just discard the shell without any further thought.

Please Note: It is very important to only use eggshells from healthy, natural chickens if you or your animals are going to ingest the shells. Eggs from factory farms are not only less nutritious, but can also carry harmful pathogens.


  • Yes, I know. First I told you to eat weeds and now I’m saying to eat eggshells… just grind to powder or crush finely.

        Toss It in Your Stock:

  • I’m all about gut health and improving our health anyway we can. Make bone broth and try to put it in anything possible. You will find a recipe……… consider adding your egg shells to it to up the healthy qualities by adding some extra calcium.

    Mineral supplement:

  • soak eggshells in lemon water for a few weeks in the fridge. Then I add a tiny bit to my shakes to get extra minerals.

    Making Water Kefir:

  •  You can also use eggshell to nourish your water kefir grains.  You just add 1/4 of a clean eggshell to your water kefir while it’s brewing.

         Make Calcium Citrate:

  • Make your own calcium citrate using only fresh farm raised, preferably organic, egg shells.  Rinse residual egg out of the shells and air dry. Crush the shell and add 1tbsp lemon juice per egg shell and cover.  The lemon juice will dissolve the shell and there you have it… calcium citrate.
  • Calcium-Rich Vinegar:

  • to make a calcium rich vinegar add calcium rich herbs (nettles, dock, etc) and one clean high quality eggshell to apple cider vinegar.  It needs to infuse for at least six weeks, before being decanted.
  • Ice Cream Addition:

  • many companies put egg shell powder in cheap ice cream to add extra calcium.  Do this when making homemade ice cream as well.

Household Use

  • Gently scour any surface—naturally

  • Finding household cleaners that don’t irritate your sensitive skin and sinuses can be a struggle. Just crush/grind several dried eggshells and store them in a glass jar. When needed, dust the to-be-cleaned surface with the powder and use a sudsy sponge or dishtowel to wipe down.
  • Laundry Whitener

  • To help your whites not to turn grey, put a handful of clean, broken eggshells and 2 slices of lemon in a little cheesecloth bag with your clothes in the washer. It will prevent the soap deposit that turns the white clothes grey.
  •  Keep drains running smoothly 

  • If your kitchen sink is draining sluggishly, the culprit may be built-up grease or food in the pipes (note coconut oil also sets in the pipes, give it to the birds instead). Simply place a few well-crushed eggshells in the sink trap. When you run the water, the abrasive shell fragments will travel down the drain and help scrape away clog-inducing gunk, keeping the pipes clear and water flowing.
  • Clean narrow-necked vases/water bottles/ thermos flasks etc. 

  • How often do you clean your water bottle, is a quick rinse really enough? Cleaning all the residue from inside vases and botttles can be a pain. To easily scrub away even hard-to-reach grime, drop one or two crushed eggshells into the container, add warm water and a drop of dish-washing liquid, and give it a couple swirls. The soap will loosen the gunk so the abrasive shells can scrape it away, leaving every them gleaming.
  • Pan Scrubber:

  • Crushed egg shells work great to scrub pans that have food stuck in them. Yes they will break up, but they still do the job!
  • Blade Sharpening:

  • Keep them in the freezer and use to clean and sharpen blender blades by adding water. Then pour the mixture into your compost bin.
  • Chalk:

  • 5-8 eggshells (finely ground), 1 tsp hot water, 1 tsp flour, food coloring optional…mix and pack into toilet tissue rolls and let dry. I remember as a little girl, I loved to play with sidewalk chalk. It was fun to create all kinds of beautiful pieces of art.

First Aid & Beauty

  • · Membrane as an all natural bandage.

  •  The membrane of the shell is reported to help promote healing in cuts and scratches.
  •    Quickly soothe sore, aching joints 

  • Break one shell up in a glass jar, then cover with apple cider vinegar and screw the jar shut. Let sit until the pieces dissolve (about 2 days). Eggshells contain nutrients that promote healthy joints, like collagen, chondroitin, glucosamine, and hylauronic acid. These nutrients are infused into the vinegar as the eggshell membrane dissolves, providing quick relief when you rub the solution into sore spots. (The mixture will keep for months.)
  • Canine Remedy:

  • I save my eggshells and let them dry out, when I have a good size amount I crush them, then use my Ninja and make them into a powder. If my dog get diarrhea, I just sprinkle a couple teaspoons of the eggshell powder on her food for a day and the diarrhea goes away.
  • First Aid Treatment

  • Fresh egg membranes applied, then allowed to dry, will draw minor infections: splinters, pimples, boils, etc.

    Cosmetic Booster:

  • Make it into a powder and and put it into ice cube trays with water and rub it on your face– it helps reduce the look of wrinkles. Put the powder in your lotion– it softens your hands.

Around The Garden

  • Feed them to your chickens.

  • Boost your flock’s calcium intake by crushing the shells and feeding them back to your hens. My girls much prefer crushed egg shells over the oyster shell supplement, I always bake the shells first to sterilise them.
  • Wild Bird Treat:

  • You can also feed them to the birds. They’re high in calcium and are great for birds in the spring when they are laying eggs– just make sure to sterilize them. Bake them in the oven for 20 minutes at 250 F and crush them.
  • House Plant Booster:

  • Keep eggshells covered with water in a mason jar which she used to water your houseplants.
  • Sprinkle the eggshells around your garden to deter pests. 

  • Soft-bodied pests like slugs or snails don’t like crawling over sharp pieces of eggshell, much kinder than slug pellets!

  • Blossom-end rot is a common tomato problem, but I recently learned that it is actually caused by a calcium deficiency in the plant. Experienced gardeners often place eggshells in the bottom of the hole when transplanting their tomato plants to help combat this problem.

  • Instead of using seed trays and plastic pots , give some of your smaller seedlings a start in rinsed-out shells.

  • Add calcium to your compost by adding eggshells to your pile or tumbler.

  • If none of the previous idea sound appealing and you don’t have a compost pile, then you can simply turn crushed eggshells directly into your garden patch. It’s still better than sending them to the garbage.

How do you use your egg shells, I would love to hear your tips.

2 Comments Add yours

  1. We use eggshells in our aquarium for the snails and turtles to get calcium. (:


    1. Julie Hore says:

      what a good idea


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