no-heat bleach/lime pasturization
Posted 15 October 2005 - 08:07 AM
Be sure to stir the lime into the water very well.
If you’re making a larger or smaller batch, adjust the lime accordingly.
This will give the water a ph of 12-13
bleach pasturization =
1 cup bleach per 10 gallons of water
submerge straw 4-12 hours.
just that simple.
Posted 15 October 2005 - 08:24 AM
Posted 15 October 2005 - 08:39 AM
two-step would be more effective and safer to breath around
Posted 15 October 2005 - 08:09 PM
That super high pH and bleach is going to evolve a lot of chlorine gas, though. A tight lid and light-proof container will help keep it the chlorine out of the air and in the solution (less smell + better disinfection). Maybe use five gallon paint buckets? Pretty cheap and they seal well. The less air space in the bucket, the better.
Be careful with that chlorine and no ventilation...pretty bad for the lungs and it speeds up rust/corrosion.
A 24hr resting period would allow most all of the bleach/chlorine to evaporate. Then again, maybe the bleach staying active for a while to keep the substrate disinfected until colonization got started wouldn't be such a bad thing...
Posted 17 October 2005 - 09:55 AM
Posted 17 October 2005 - 10:03 AM
edit: i forgot i soaked the coir in a bucket with the same mix 1 gallon/1.5tblspn bleach/pinch of lime for 30 minutes before mixing up with the dry castings in the trays.
Posted 17 October 2005 - 10:15 AM
It does indeed work. I mentioned it a couple of months ago and like everything else I say, it went ignored...:yawn:
it's been in the archives here a few years now, laz.
many others have reported their successes too.
i just re-posted it here on vbulletin
because of a related thread by sinth.
it's not exactly a new idea, btw,
stamets mentions both in TMC
Posted 17 October 2005 - 10:44 AM
I am not sure which would be best to do first, or if it is better to do both at once. Somebody was talking of doing the combo with a lot of bleach and a lot of lime too, for only 4 hours, and reported success. The bleach kills existing nasties and the lime prevents future ones. The bleach needs time to decompose so adding bleach first may be better, it will have time to decompose and the lime water will dilute it further. If you add the bleach second it may dilute the lime. Combo may be best, less hassle
EDIT:I have read it is 4 cups of lime to 45gallons of water. The same for bleach.
That is 5.5ml per litre in metric.
hotnuz(lazlo) replied "I do all of my straw pasturizations with 1 cup of both bleach and hydrated lime per 10-12 gallons of water. Use hot tap water only and allow the straw to soak for 2 hours submerged well and then flip the contents. Allow to soak for another 2 hours. 4 hours total... "
Posted 17 October 2005 - 12:07 PM
Posted 17 October 2005 - 01:39 PM
Posted 19 October 2005 - 08:41 PM
I'm thinking the high pH would cause higher osmotic pressure which *might* force more water into the straw's cellular matrix. If that were the case, that sterile water would be very selectively available to the growing mycelia.
Each cell is just a little bag of water/nutrients waiting to be tapped. The more those bags contain, the better.
Posted 21 October 2005 - 08:22 AM
Posted 21 October 2005 - 09:07 AM
Lazlo- Have you done this with manure? I was thinking of getting a nice LC going, say 1litre, when colonised I would stir in lime and maybe bleach and add it straight to manure, using it to hydrate the manure. I will try it on a small scale first and see
I've done lime alone with manures, but i'm learning it's not needed if the pasturization process is done correctly.
Posted 23 October 2005 - 09:40 AM
Posted 02 November 2005 - 09:12 AM
I am talking of only using lime and bleach on manure, no heat at all. I have a tray I prepared just yesterday. 500g cow poo+50g hydrated lime+100ml water+ 3ml bleach + 200g colonised wheat.
how'd that go ?
Posted 02 November 2005 - 12:50 PM
I also cased it. I think the casing has too much hydrated lime. My other microwave pastuerised cow manure/straw was cased with the same stuff and it didnt colonise it well. I scraped it off leaving about 1/4" behind, I put about 1/4" on the limed cow poo too, just to stave off airborne contams. No bad smells yet. I will try the liming again, this time at proper field capacity, it wont be for a while though.
This is a pic of the fruiting KS tray on microwave paseurised cow poo & straw. This was spawned with that jar of black burnt wheat I had, if you can remember back about 2 months
Posted 03 November 2005 - 09:23 AM
if you can remember back about 2 months
sometimes i can,
sometimes i can't.