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Home Brew Forums > Home Brewing Beer > Hops Growing > pressure treated wood
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Old 03-23-2008, 10:39 PM   #1
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Default pressure treated wood

So I'm thinking of making a couple 2.5x2.5x2.5 planter boxes to plant my 2 rhizomes in. Planting them in the ground is not an option unfortunately. So, my question is, would pressure treated wood be good or bad for the plants?

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Old 03-23-2008, 11:07 PM   #2
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It's treated with arsenic and then pressed between rollers to get the liquid out. Let your conscious be your guide. I would recommend Cedar or Redwood.

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Old 03-23-2008, 11:53 PM   #3
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my dad is a carpenter and as Gnome said it has arsenic in it. I would not use it for anything unless you have absolutely no choice, the dust from cutting it is bad, the splinters you can get from it are bad, and you certainly dont want to risk getting arsenic in the soil where your hops are growing. I dont know if it would harm the hops but if it gets into the plants and into your beer is would be very bad.

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Old 03-23-2008, 11:55 PM   #4
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I'd go with cedar or redwood as well. I wouldn't take the chance.

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Old 03-24-2008, 12:03 AM   #5
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Quote:
Originally Posted by Gnome
It's treated with arsenic and then pressed between rollers to get the liquid out. Let your conscious be your guide. I would recommend Cedar or Redwood.

CCA hasn't been used for residential treated lumber since around 2004 they now use ACQ
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Old 03-24-2008, 02:19 AM   #6
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They havent used arsenic in years..

The stuff they use now doesnt migrate easily though soil, I would let them sit outside for a while to get all of the residual stuff off and then use it. I plan on using PT for my raised planters.

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Old 03-24-2008, 02:29 AM   #7
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If you're concerned even with the ACQ or have any doubts just line the interior (not the bottom) with heavy mil plastic. There's no way I'd drop the bucks on redwood or cedar.

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Old 03-24-2008, 06:42 AM   #8
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Same problem here. 2x12x16' acq treated is $20, the same in cedar is 79.99. I need 6 of them so $120 vs $500 is a no brainer for me. I am half tempted just to use good old untreated pine and see how long it lasts. If it starts falling apart after a few years I'll wrap it with the treated stuff.

I did read that the acq can leach copper something or other into the soil or if the roots contact it and should be avoided in vegetable gardens unless you line it with plastic. Google it you'll find lots of info.

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Old 03-24-2008, 02:29 PM   #9
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Untreated will last one year in contact with dirt.

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Old 09-01-2010, 12:25 PM   #10
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http://www.homebrewtalk.com/f92/pres...74/index2.html

I have worked in a wood treating facility now for 10 years. I have been seeing a bunch of disinformation on here. I invite you to check out this link I have posted some info on treated lumber.
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