Mushroom compost

Asked April 18, 2017, 11:08 PM EDT

Does mushroom compost have heavy metals?

Clackamas County Oregon

1 Response

The only way to know for sure is though testing. If you are purchasing this from a company, you can ask for test results. If the company does not test, you may want to purchase from another company. You can also have testing done independently through companies that do soil testing. For local providers, you can do a web search with soil testing Portland Oregon.