Calcium Carbonate Eggshell Food Grade

$12.00$120.00 inc. GST

SKU N/A Categories ,


Used for gardening, mycology , livestock and bird and dog supplements. This product is made with just a white eggshell and nothing else added to it. Food grade.
In mushroom cultivation, it serves as a PH buffer for the substrate. This means that the PH will remain steady as the mushroom grows. When mycelium expands, it releases acid compounds to help digest the substrate media. These acids could drastically change the PH of the substrate, making it difficult for mushrooms to fruit. Calcium carbonate prevents the substrate from becoming too acidic for the mycelium to produce fruits. Depending on the method, soak, boil and dry your grains and then add Calcium Carbonate. Mix well and then sterilise.

Use 5% of Calcium Carbonate of the total weight of your grain spawn.

Note: Calcium Carbonate ‘lime’ is NOT for pasteurising. We have a listing for Calcium Hydroxide  Ca(OH)2, which is used for pasteurisation.
Looking to Make Grain Spawn or more Pre-Mixes? Check these listings in our store

Shipping Cost – The product is shipped via Australia Post using Express Post service for $5.80. If multiple items are in the cart with varying shipping costs, only the highest shipping cost for a product in the cart will be charged.

Handling time- This product has 0 days handling time and is shipped the same day if ordered before 12 pm. However, it’s important to note that if other items are in your cart, the handling time may vary based on the handling time associated with those additional items. Handling time is not guaranteed during the busy holiday period.

Shipping time- Australia Post guarantees express post is delivered the next day in metro regions of Capital cities, but give it anywhere from 1-3 days for this package to reach you. Shipping times are not guaranteed during the busy holiday period.


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