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Sterilization techniques for organic methods: Or, is Cl really appropriate?

S

SeaMaiden

I ask this question based on some unrelated reading I'm doing in a book called What Your Doctor May Not Tell You About Menopause. While the focus of this book is on the factors that lead to menopausal problems, how and why they're so strongly associated in Western women while they're not so strongly associated in other agrarian cultures, and that, of course, leads to a discussion of 'xenos'.

Xenobiotics, xenohormones, xeno-estrogens: xeno meaning "toxic". Many here are likely already well familiarized with the terminology and all that comes long with it.

But, what about organochlorides, created when chlorine (bleach) comes into contact with organic molecules? Many people are focused on the organochloride group of pesticides, but they could be the least of our problems when it comes to organic cultivation and remaining as healthy as possible. Once the Cl reacts with an organic molecule it becomes endocrine disruptor at that point, as I'm understanding what I'm reading.

My question then comes from this; IF we (in Western society) are experiencing the results of living in a toxic soup of hormone imitators and endocrine disruptors, and IF we desire to reduce or eliminate as many sources of the soup as possible, THEN do we organic cultivators not have a duty to not use the products that lead to these issues?

My answer is yes. To that end, I question the wisdom of constantly trotting out bleach as the answer for every organic cleaning question. I will also question the wisdom of isopropyl alcohol at this time, again based on my reading.

Unfortunately, at that point, I'm not sure what direction is best. I'm well familiar with the family of quaternary ammonium compounds and their utility in an organic cultivation scenario. They also seem to be linked to chloride compounds.

Another unfortunate situation is that isopropyl alcohol may be one of the esthers that may also be associated with hormone imbalance, and so without more research I can't state that it's a better option, or even if it should be an option, for this type of use. What makes this unfortunate is that, as has been relayed to me by my last surgeon, isopropyl is pretty much the best sterilizer you can use, as far as chemical means go.

I feel this is a salient discussion because hormone imbalance affects anyone at any age, and the more I've been reading the more that I see that I was basically setting myself up for failure at this point in my life. I'm hitting a brick wall with my doctor(s), and so am, as so many cannabis users are, forced to find my own path and resolution.

I also feel it's important because summer is upon us and we outdoor organic cultivators will be having issues to deal with, sooner or later.

So! I'm in for an education by the scientists. If I've gotten something wrong, please correct. Also, looking for good answers to the problem. We all have equipment and surfaces that need cleaning and possibly disinfection, what's truly the best substance or product to use?
 

floral

Member
Would grain alcohol or vodka work as a substitute for ISO? I know some people use vodka as a hand sanitizer.
 
S

SeaMaiden

I honestly don't know about that. I know that many reefkeepers will use vodka to help boost start their biological filtration system (nitrifyers), so I'd think that it would have to be pretty strong/high proof alcohol.

I generally am using good old soap and water for washing my hands, but I've also been doing some other researching and was reading an article that mentioned using MILK, of all things, to control VIRUS in the greenhouse. I've found a few uni extension papers on the subject, and they're using different types of milk (dried non-fat vs whole fresh/pasteurized, for example) to wash hands and tools to prevent virus spread, as well as controlling viruses.

Bump this thread for me later and I'll pull them up and either attach or link, ok? Because milk is a LOT less harsh than any of this other stuff, agreed?
 

Granger2

Active member
Veteran
The beauty of H2O2, and why I use it, is that it quickly breaks down into water and oxygen. No residue. Ethanol is the alcohol of choice, the one that is least toxic. It can get a bit expensive. Everclear is 95% ethanol. Vinegar is also a disinfectant. Baking Soda is also. Stay clean. -granger
 

Neo 420

Active member
Veteran
what are you trying to sterilize in an organic grow?
I was assuming she meant her utensils and such. BTW she got her answer with hyd per. Not the consumer grade but the growers grade ..LOL

BTW... Sea


In what manner are you using bleach? I would associate bleach more with washing undies and towels versus in an organic growing manner. I clean and sterilize with physan 20 (which maybe way damaging than bleach.. Who knows???) Put this more in context for us??
 
S

SeaMaiden

The beauty of H2O2, and why I use it, is that it quickly breaks down into water and oxygen. No residue. Ethanol is the alcohol of choice, the one that is least toxic. It can get a bit expensive. Everclear is 95% ethanol. Vinegar is also a disinfectant. Baking Soda is also. Stay clean. -granger
Thanks for that. Straight vinegar? And straight baking soda? I've never heard/read that sodium bicarbonate can act as a disinfectant.
what are you trying to sterilize in an organic grow?
Future planning, gotta do it. Tools, mostly. Trying to be proactive.
I was assuming she meant her utensils and such. BTW she got her answer with hyd per. Not the consumer grade but the growers grade ..LOL

BTW... Sea


In what manner are you using bleach? I would associate bleach more with washing undies and towels versus in an organic growing manner. I clean and sterilize with physan 20 (which maybe way damaging than bleach.. Who knows???) Put this more in context for us??
I've been using it as I learned to while working at a public aquarium. However, PAs have sodium thiosulfate, a STRONG dechlorinator, practically coming out of their ears. Also, most everything is *kept* wet, which means no evaporation and longer staying times.
Like Weird said - what are you trying to sterilize??

J
Tools, surfaces, anything that may have come into contact with a diseased organism. Mostly I'm trying to be proactive and have been looking at the issue from an aquatics or zoo disease-prevention stance. I can quarantine, but it won't mean shit if my tools are reinfecting everything they touch.

The immediate example here would be if I do indeed fire up my indoor spaces again. I don't have tools that are specific to each area (the price of marriage), and so I'd like to ensure that whatever I use that's going back inside is at its cleanest and safest to use. This is due in large part to the fact that, despite all those years growing things in glass boxes filled with water, I have much better success cultivating terrestrial organisms outdoors vs indoors. So, cleanliness, cleanliness, cleanliness. Is key.
 
I use a bleach solution for my containers.I hate the smell of bleach!
icon8.gif
 
J

jerry111165

but it won't mean shit if my tools are reinfecting everything they touch.[/I

Reinfected with what? Why not soap and water then? Just trying to understand what you're trying to disinfect from. Is there something specific yours trying to keep away from?

I've never heard of farmers or greenhouses trying to disinfect anything.

J
 

budbasket

Member
http://www.usorchidsupplies.com/gre...een-shield-disinfectant-and-algicide-gal.html

This stuff works really well. Wash all your stuff off after use to clean dirt ect. then just keep it soaking in a barrel of greenshield.

"Gives greenhouse and nursery growers a biodegradable, cost-effective way to control unwanted plant pathogens and algae on hard surfaces, such as floors, benches and walls. Unlike bleach, Green-Shield is EPA-registered for broad-spectrum control of pathogens and algae in and around greenhouses and causes no damage to clothing from splashes"
 
S

SeaMaiden

Budbasket, thank you for that. Is Greenshield a quarternary ammonium compound?
SeaMaiden said:
but it won't mean shit if my tools are reinfecting everything they touch.

Reinfected with what? Why not soap and water then? Just trying to understand what you're trying to disinfect from. Is there something specific yours trying to keep away from?

I've never heard of farmers or greenhouses trying to disinfect anything.

J

With whatever pathogen I may experience in the future.

How do farmers and GH operators control disease outbreaks if they don't address disinfection? What do they do if they're experiencing, say, potato virus Y? Just keep on truckin'? Keep on using their tools on the same plants, over and over again, no controls or methods of disease control and prevention used?

Please remember that my perspective comes from zoos and public aquariums and that model of disease prevention and control. We need to keep things as close to natural environs as possible, but if there's an outbreak of anything it can wipe out the entire display very quickly.

So, I haven't seen anything (pathogenic) or experienced anything *yet* that makes me say I must sterilize right now, but I am a proactive woman and would prefer to take that stance rather than trying to play catch-up on the backside.
 
but it won't mean shit if my tools are reinfecting everything they touch.[/I

Reinfected with what? Why not soap and water then? Just trying to understand what you're trying to disinfect from. Is there something specific yours trying to keep away from?

I've never heard of farmers or greenhouses trying to disinfect anything.

J


You know I love you Jerry, but I couldn't resist...
http://lmgtfy.com/?q=disinfecting+plant+benches
 

Scrappy4

senior member
Veteran
but it won't mean shit if my tools are reinfecting everything they touch.[/I

Reinfected with what? Why not soap and water then? Just trying to understand what you're trying to disinfect from. Is there something specific yours trying to keep away from?

I've never heard of farmers or greenhouses trying to disinfect anything.

J


Diss infect yourself internally with fungally fermented grape juice and you should be good to go. Burn sage for good measure n throw salt over your shoulder, and your golden.....scrappy
 

floral

Member
Thus far these are the only commercial organic disinfecting agents I've found:
"Organic Disinfectants that are listed by the Organic Material Review Institute include OxiDate 2.0 and SaniDate 12.0. Ethyl or isopropyl alcohol is used to disinfect tools."
- from University of Massachusetts extension http://extension.umass.edu/floriculture/fact-sheets/cleaning-and-disinfecting-greenhouse


"Organic growers have limited options for disinfectants. Oxidate® is the only material mentioned above that is currently listed by the Organic Material Review Institutes (OMRI), see www.omri.org. Ethyl or isopropyl alcohol is also allowed under the organic standards. "

from http://www.negreenhouseupdate.info/index.php/october/546-greenhouse-clean-up
 

ClackamasCootz

Expired
Veteran
MM

I have a question for you about vinegar concentrate used as a herbicide. These vinegars have acetic acid >20% which works very well for that application.

This is sold at the farm store as well as an organic feed grade apple cider vinegar at the usual level of acetic acid.

Any suggestions? The price on the feed grade is about 1/2 that of the vinegar concentrate.

CC
 

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