It might not hurt to soak some in an excess of water overnight and measure
the pH before using it, just to be safe.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!

.. . . . . . . . . . .
"DavidandAllision" wrote in message
...
I finally received the MSDS product sheet and from what I can read seems
like
everyday vermiculite. I think I'll give it a try.

http://www.uline.com/pdf/MS-3327.PDF