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- Thu Sep 07, 2017 5:51 pm
- Forum: Ask the team
- Topic: Egg Shells for Calcium
- Replies: 3
- Views: 3552
Egg Shells for Calcium
Hi All I have managed to secure an arrangement with the works restaurant to take all of their egg shells for allotment use. Question is - do I have to wash and sterilise these before crushing to a powder before I use them as a calcium supplement for plants or can i simply dry them and crush them rea...