san rainbow said:

what grade is usually recommended?

and where would you usually obtain it?

dose it kill shroom spores in direct contact?

cheers

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3% is what I've seen recommended.  I buy 6% and dilute.

I ask for it at the pharmacy.  They keep it behind the counter because it can be used to make bombs.  Tell 'em it's for your first aid kit.  Or tell 'em it's for growing mushrooms I guess.

Allegedly, yes, it kills spores.  I've seen RR say something along the lines of H2O2 "has no valid uses in mycology" (except for killing cobweb, I guess) so you might want to save yourself the trouble.  I give agar wedges a brief dip in H2O2 when I'm transferring them.  It doesn't noticeably hurt them though I haven't done any empirical tests.

andymc said:

I ask for it at the pharmacy.  They keep it behind the counter because it can be used to make bombs.  Tell 'em it's for your first aid kit.  Or tell 'em it's for growing mushrooms I guess.

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Really what country do you live in?
I live in probably the most paranoid ban happy state in the US and I can walk up grab 10 gallons off the shelf and walk out with it without being questioned, hell potasium nitrate is even pretty easy to come by if you know where to look.
But H2O2? I know its somewhat reactive but unless its being concentrated i don't imagine it making anything spectacular.

Quote:

Hydrogen peroxide was said to be one of the ingredients in the bombs that failed to explode in the 21 July 2005 London bombings.[46]

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myco.alchemist said:

Should be right next to rubbing alc in any drug store in UK.

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Quote:

andymc said:They keep it behind the counter because it can be used to make bombs.

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andymc said:

myco.alchemist said:

Should be right next to rubbing alc in any drug store in UK.

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Myco, no offence intended, but there's a sticky about finding supplies in the UK, because for whatever reason, things that you'd find in "any drug store" or "any hardware store" in the US (I'm just assuming you're in the US) can be very difficult to find here.  Not sure why.

Rubbing alcohol is something I've never seen on a shelf here, and I've looked around.

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Well, the UK and probably most if not all of Europe is heavily regulated and controlled, much more so than the US.  Gotta love that socialist idealism in Europe.  Pretty soon everybody will be forced to buy only certain products from a certain company and only allotted a certain amount of times a year to buy it.

The fact that Europe bans such simple items that can be easily found anywhere in the US is just another way to control the people.  Be thankful you still have a choice in what you can buy and where you can buy it, because it won't last long.  Hell the way our commie president is running things now we might lose those freedoms sooner than you guys.  Which would be a first in world history, since the US usually trails Europe by about 10 years in politics, laws and regulations.

As far as the OP question goes, I use 3%.  I use the stuff for a ton of things in mycology, since it is as good a sanitizer as alcohol, yet it also kills/mutates molds and bacterias.  It's pretty much the perfect cleaner solution for mycology.  Because not only does it kill practically everything, but once it is spent it turns into harmless h2o.  So no nasty by products.  Probably would be great for sterilizing syringes without boiling/PCing them. Just suck up some h202, let it sit, plunge out, and now you have a clean syringe. 

I have actually been successfully using it as a water substitute in my BRF jars.  So instead of mixing water with verm and BRF, I mix h2o2, then let it sit for a few hours.  Then once I sterilize it, the heat breaks down the h202 and just leaves h20, ready for inoculation.  Can't get any more sterile that that.

Nanoid said:

Well, the UK and probably most if not all of Europe is heavily regulated and controlled, much more so than the US.  Gotta love that socialist idealism in Europe.  Pretty soon everybody will be forced to buy only certain products from a certain company and only allotted a certain amount of times a year to buy it.

The fact that Europe bans such simple items that can be easily found anywhere in the US is just another way to control the people.  Be thankful you still have a choice in what you can buy and where you can buy it, because it won't last long.  Hell the way our commie president is running things now we might lose those freedoms sooner than you guys.  Which would be a first in world history, since the US usually trails Europe by about 10 years in politics, laws and regulations.

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Are you going to start with the offtopic political shit again nanoid?    Take it to OTD please.  Please.

It's not because stuff is banned.  I don't know where you got that from, but I imagine your fevered, paranoid political rantings were just busting to get out, so you didn't take the time to grok what anyone was saying.

For example: people in the UK don't really do canning.  So finding PF tek-style jars, Mason jars, pressure cookers, etc., is a little more difficult and/or expensive.

It's not a communist plot, guy.

Nanoid said:

I mix h2o2, then let it sit for a few hours.  Then once I sterilize it, the heat breaks down the h202 and just leaves h20, ready for inoculation.

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andymc said:

Are you going to start with the offtopic political shit again nanoid?    Take it to OTD please.  Please.

It's not a communist plot, guy.

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This is not OTD but nanoid must have never of the patriot act we have here in states.

I wish i had a nickle for every time I've heard this rant, I would be one rich a$$ motherFucker.

But lets get back to the fact this is MUSH CULT not OTD.

Psil said:

Also can we clear up this nonsense about hydrogen peroxide and bombs.  It is NOT a watched chemical and sales are not monitored.  If you buy a bottle everyday for a month they might start asking questions but apart from that I promise you, they will not care.

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