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Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
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Is Hydrogen Peroxide Underrated, or is it just me??? * 1
    #2261062 -

Well, is it just me or does it seem that Hydrogen Peroxide (H202) doesn't get the propper attention it deserves.  I mean, during my reading it was never really mentioned much and if anything when I did hear about it it seemed like an unnesscessary addition. 

But it's just so cheap! A buck or two for a big bottle of it.  And it increases your chances 10 fold! Especially when doing grain.  I've spawned using jars that had green fungus in them that I put in a bag, picked out the visible nasties, and hit with straight up H202 in a spray bottle and then spawned it.  Great success!  No contams yet on my casings from contaminated jars!

Of course this was just a bit of green in my jars.  So nothing too serious I don't think.  And yes, they have been sampled and proven to be quite potent and unlethal. 

Another great use for it is doing G2G's, spraying in a syringe full of it into each jar before you add in your colonized grain and shaking it all up once the lid is screwed down.  Kills any contams that might have been lurking in the jars and kills anything that might have floated in during the G2G.

I'll admit, of course, that H202 is no substitute for sterility, but if you're like me and you get a funky spore print and make a funky syringe that gives you funky results then it could partially save what would otherwise be a complete bust. 

I no longer fear when I see green.  I just put that jar into it's own casing along with any others that get funky and isolate them.  But so far I've made two or three 'contammed' casings and had GREAT results.  I shit you not, I would say by and large these casings keep pace with others made from good grain, and one actually did a lot better! 

So take it with a grain of salt.  I'm not an expert.  But I've been having a lot of success using H202.  Maybe everybody else is using it and I was slow on the uptake, but if anyone else is out there like me who has some funky jars and some extra H202, then try it out for yourself.  Who knows, worst it can do is not work :wink:  No loss!


Peace out, hope this post is helpful to someone. 

As for the rest of you seasoned vets using it already, hows your luck been using it? 



Oh yeah!!  One last thing, the main success I've had with using H202 with casings is using the H202 on the grain BEFORE you spawn it to the poo or whatever.  If you have a perfect jar and you spawn it and all of a sudden your casing contams I don't know how well H202 misting will work.  The contams are already inside of the casing and you won't stop that.  I religionsly spray even healthy appearing myecellium with a bit of H202 before I spawn it now.  It gives peace of mind, cuts down on the needed sterility needed, and takes care of some of the pesky floaty ugly fuckers that rob us of our PsiloFriends.

Good luck!  :mushroom2:


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You can't hold a man down without staying down with him.
-- Booker T. Washington

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: DocPsilocybin]
    #2261073 -

good info...H2o2 is a good weapon against molds, and doesn't hurt the mycellium.



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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: DocPsilocybin]
    #2261077 -

Hey i had a slightly contaminated jar that i just earlier today cased seperate from my others, but leaving out a big chunk of the mycellium surrounding the contam. I wish i woulda read this post sooner or else i woulda sprayed w/ h2o2. Is there anything i can do to it now with h202 now that it is already in the casing? Also, do you dilute the h2o2 when you spray? If so, how much? Thanks!

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: simplemachine]
    #2261080 -

I  :heart: H2O2

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: Nickster_154371]
    #2261218 -

Nick, when I spray I use straight H202, it's 3% stuff, standard I think.

As for your casing, hmmmm, I'm not sure if spraying it with H202 will help but hell it might! If I was you I'd put some H202 in a spray bottle and spray the surface of it fairly well, give it 6 or 7 real good shots with the spray and hope that it saturates deep enough to get any problematic mold spores.

If you left out a big portion of the cake you might be fine anyway! Wish you the best of luck. By the way, is it poo that you're spawning to? Because Poo has a lot of tollerance to contams.


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You can't hold a man down without staying down with him.
-- Booker T. Washington

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: simplemachine]
    #2261244 -

Thanks Simple Machine! 

I hope this thread helps out some people in the same boat as I am in.  H202 is lovely, just lovely :smile:

If I get any feedback on the idea I might do a step-by-step pictorial TEK on how to try and save slightly contammed cakes/grain jars. 

Please note, any dealings with contammed jars and getting them to fruit could be a potential health threat.  I say this just so I don't get angry responses for promoting something ill-advised.  I've dealt with contams a fair bit and never had any adverse physical effects, but you can, I suppose, run the risk of eating something that might make you sick or worse if you experiment with this. 

I think the risk is negotiable, personally, and it's small enough where I don't worry about it.  But if you feel the least bit hesitant in doing this, please don't.  Be careful! 

That said, any other questions I could help try and answer??


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You can't hold a man down without staying down with him.
-- Booker T. Washington

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: DocPsilocybin]
    #2261314 -

Thanks for the tip Doc, im gonna try that right now. Anyways...im using just regular moistened verm.

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: DocPsilocybin]
    #2262176 -

I have found that h2o2 is very effective against cobweb.But when it comes to Mr.green it's ineffective.If green mold isn't removed right away the casing is gone h2o2 or not.I think cleaning the work and grow area is more important than anything you can pour or spray on your casings.H2O2 is a good added practice but it's not a cure all to contam.I think that's why it's not mentioned to much so people don't substitute it for sterile teks.

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: DocPsilocybin]
    #2262231 -

I've only been able to stop trich. with H2O2 if it was detected very early. Once it's established itself you're best bet is to remove the infected area and use salt. If it's in several places though you're probably fucked. You're right, it doesn't get mentioned often anymore but it's good stuff!


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Growing conspiracy
Everyone's after me
Frayed ends of sanity
Hear them calling
Hear them calling me

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: DocPsilocybin]
    #2262248 -

49 cents at King Stoopids!
Oh yeah!

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: DocPsilocybin]
    #2262536 -

Hell ya! H2o2 is the shit. It keeps my casings contam free. Now if I can get my jars contam free and keep my casings from drying I'll be happy as a shroom in shit!

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: DocPsilocybin]
    #2262586 -

I also think h202 is under rated

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: simplemachine]
    #2262760 -

Can i just squirt some into my rye jars and pf jars now (there is no sign of contams)so that no contamination will happen,if so how much should i use?They are between 10-25% colonized

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: snatchcakes]
    #2262900 -

I thinks your probably more likely to introduce contams this way...
[edit : wrong post]



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Edited by simplemachine (01/22/04 02:04 PM)

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: DocPsilocybin]
    #2262954 -

Doc,I think a pictorial on how to try and save slightly contammed cakes/grain jar, is a great idea,it would help alot of newbies out.


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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: DocPsilocybin]
    #2263595 -

H202 and mushrooms


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All creatures tremble when faced with violence. All creatures fear death, all love life. If we can only see ourselves in others, then how could we possibly hurt another creature?


:growingweed: Join us at the Growery! :growingweed:

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: snatchcakes]
    #2265010 -

I use it for G2G's and I add it in right before I do the transfer.

I wouldn't add it in at your stage right now lest you play with it's mojo.


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You can't hold a man down without staying down with him.
-- Booker T. Washington

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: BadEnglish]
    #2265011 -

When I get my digi and a few contammed jars I'll do a pictorial :wink:


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You can't hold a man down without staying down with him.
-- Booker T. Washington

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: DocPsilocybin]
    #16268323 -

I have heard that H2O2 will harm the mycelium to a degree, but not kill it. possibly slowing growth times?


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:raver2:How To Trip:jellyfish:Ultimate Tek Compendium:jellyfish:Cacti Tek List:raver2:

:mushroom2:Organize to Legalize Psilocybin:mushroom2:

Applying Jungian ideas to the psychedelic experience

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Re: Is Hydrogen Peroxide Underrated, or is it just me??? [Re: Psilosopherr]
    #16268462 -

Yes, in the 8 years since this thread was posted we've learned that peroxide is not generally useful.


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You make it all possible. Doesn't it feel good?

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