Some people say the Cypress mulch they purchased contained mites. Their solution was to bake the mulch to kill the vermin. I have read that baking at 250 degrees for 20 minutes is sufficient, but others say 350 degrees for 1 hour. I have also read that putting the mulch in the freezer for a few days kills vermin. Depending upon the company selling the Cypress, some mulches contain a small amount of other woods, including Cedar. The Cypress sold in pet shops is usually 100% Cypress and better quality, but check the label.
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