Laurel leaf
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Posts: 8
Joined: Sat Oct 12, 2013 11:45 pm
Location: Portland Oregon

My compost bin is pressure treated.

I built a compost bin a year ago. I used pressure treated deck boards on the exterior. I read an article that said to avoid using pt lumber. I also read that the concerns regarding pt lumber have been address and the issues are not the same anymore. What do you think? Should I remove all the exterior lumber and replace it? Can I use plywood on the inside for a barrier between the compost and the wall?

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Super Green Thumb
Posts: 25303
Joined: Sun Feb 15, 2009 11:04 pm
Location: TN/GA 7b

Re: My compost bin is pressure treated.

Personally, I wouldn't worry about it. P-T wood used to have arsenic in it, but that was years ago. The treating chemicals are less toxic these days. I wouldn't try to put a barrier in, because any barrier you use will cut down air circulation through your pile, but air circulation is what you want.
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