Cardboard+-+Paper+Substrate

=Guides= =General Toxicity= =Ink Toxicity= >> 1. New paper / cardboard unprinted >>> Ok >> 2. Recycled paper / cardboard unprinted >>> Probably Ok >> 3. Lightly Printed Paper / cardboard >>> Probably Not Ok >> 4. Heavily Printed Paper >>> Not Ok > **Printed Paper / Cardboard Source** > **1. Food Packaging** >> Europe Regulation : Ok > **2. Newspapers** >> Europe Regulation : Probably Ok > **3. Printed Books** >> Europe Regulation : Probably not Ok > **4. Printers paper** >> Europe Regulation : Probably not Ok
 * http://www.shroomery.org/forums/showflat.php/Number/3200510
 * 1) **Heavy Metals**
 * 2) **Type of Paper**

http://www.mushroom-appreciation.com/mushroom-spawn-cardboard.html http://www.shroomery.org/8512/Cardboard-Cloning-Tek http://forums.mycotopia.net/fungi-all-edible-medicinal-other-mushrooms/19704-cultivating-oyster-mushrooms-newspaper.html

Ink Toxicity http://www.aujardin.org/encre-toxique-t134910.html http://www.grist.org/article/umbra-papercompost http://www.gardenplansireland.com/forum/about4759.html http://www.collectiveroots.org/node/540 http://www.waldeneffect.org/blog/Mycoremediation/ http://forums.mycotopia.net/fungi-all-edible-medicinal-other-mushrooms/19704-cultivating-oyster-mushrooms-newspaper.html

Recycled Cardboard http://www.bbc.co.uk/news/uk-12663183