fresh bark as potting media

[Psyched]

I happen to get a sack of pine and teak bark from local sawmill. How do I treat these barks to remove the tannins or can I just use these to pot chids?

[Ray]

Most commercial "orchid barks" have been autoclaved to strip the oils. Tannins are not really much of an issue, by themselves.

[Psyched]

Thanks, Ray.

So far I have soak the barks with growth hormone, high N fertilizer, and fungicide. I am gonna use it after I dry the barks under the sun. Hopefully it will be perfect use for chids.