Composting
Q.

Which to compost: raw eggshells or cooked?

Zone Seattle area: zone 8 | Anonymous added on October 21, 2016 | Answered

Is it correct that raw eggshells (dried and reduced to small pieces) will bio-degrade quickly in compost or soil, whereas cooked ones remain "as is" longer and tend to attract pests?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on October 21, 2016

There is no indication that insects or pests are attracted to egg shells in compost, either raw or cooked.
Cooking your egg shells will eliminate any danger of salmonella or botulism transfer.
You should do what ever you feel safe with for your own composting.

Here are some links for you with more information.

https://www.gardeningknowhow.com/composting/ingredients/eggshells-in-the-garden.htm
http://msue.anr.msu.edu/news/adding_eggshells_to_compost

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