Very Easy Sterilisation Method - My Seedlings

[PeterP]

An alternative way of using gaseous chlorine---opening and closing the medium jars inside a transparent ziplock bag and adding HCL to the bleach so that chlorine gas is released inside the bags---and therefore with much less risk of contamination is described here. Also read the comments where some extra details are described such as turning upside down the jar inside the bag to let the chlorine gas flow out:

[Afid]

Originally Posted by PeterP

An alternative way of using gaseous chlorine---opening and closing the medium jars inside a transparent ziplock bag and adding HCL to the bleach so that chlorine gas is released inside the bags---and therefore with much less risk of contamination is described here. Also read the comments where some extra details are described such as turning upside down the jar inside the bag to let the chlorine gas flow out:

A word of caution about this method: Chlorine Gas is VERY toxic and can be highly dangerous even in small amounts. Be extremely careful with it.