Crushed Oyster Shells

Crushed Oyster Shells

We currently have limited quantities of both Oyster Shells and Oyster Shell Flour.

Popular among mushroom growers as a source of calcium carbonate, many use it as a pH. buffer. Our oyster shells are crushed, screened and properly prepared. Our crushed oyster shells contain no animal matter and are clean, odorless and accurately sized.

Sold by the pound