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Offlineinvitro


Registered: 05/03/13
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Lime vs steam pasteurization
    #23431957 - 07/11/16 12:27 PM (7 years, 6 months ago)

Steam seems to be the method of choice (by far),
anyone have luck with a lime-only pasteurization?


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OfflineYerow
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Re: Lime vs steam pasteurization [Re: invitro]
    #23431979 - 07/11/16 12:36 PM (7 years, 6 months ago)

I am only doing cold lime pasteurising as of late. Been working great!
The lime i am using is completly ground to fine powder, not those pepples
got small 70-80 liter barrels i just fill with cold water and lime. mix the lime nicely with the water so it's got that beige color :smile: and dump the dry straw, close barrel but not completely tight and let it sit overnight.
Using something like 3-400 ml of lime per run, can try and weigh it out next time, tried with less but didnt seem to go.


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Offlineinvitro


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Re: Lime vs steam pasteurization [Re: Yerow]
    #23432011 - 07/11/16 12:47 PM (7 years, 6 months ago)

Is there any grain in your straw?  I want to do a lime bath but my straw is awfully grain filled..


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OfflineYerow
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Re: Lime vs steam pasteurization [Re: invitro]
    #23432053 - 07/11/16 01:06 PM (7 years, 6 months ago)

Usually always a few yeah, not sure if as much as you got (read your other thread) Sprouts here and there sometimes but i am sure you can find a proper lime ratio to kill them too :strokebeard:

Aloha got a few things written down on their site way down on this page:
http://www.alohaculturebank.com/low-tech-growing.html


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Offlineinvitro


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Re: Lime vs steam pasteurization [Re: Yerow]
    #23432058 - 07/11/16 01:09 PM (7 years, 6 months ago)

I asked aloha about it they said lime + grains is -really- not a good idea so....


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OfflineYerow
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Re: Lime vs steam pasteurization [Re: invitro]
    #23432072 - 07/11/16 01:13 PM (7 years, 6 months ago)

Ah well, must clean out your straw then i suppose, not really sure how you would do that though. Like finding needles in a haystack possibly? :shrug:*

Maybe try another source for your straw or use heat :smile:


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OfflineSpeakSoftly
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Re: Lime vs steam pasteurization [Re: Yerow]
    #23432089 - 07/11/16 01:20 PM (7 years, 6 months ago)

We gave the Lime bath method a good try here in Texas, and got mixed results. Pretty low BE, and too much contamination for it to be worth it. Now we're using a livestock tank with a heating element to pasteurize the subs up to 165f for a couple hours. Should no for sure which works better for us in a couple weeks.


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Offlinesoil
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Re: Lime vs steam pasteurization [Re: Yerow]
    #23432093 - 07/11/16 01:21 PM (7 years, 6 months ago)

we grow out own wheat and dry corn. on the shredded stalks we use lime to pasteurize it. works very well for us and very little contamination. our wheat straw has grain in it here and there, we actually get sprouting grains from the bags, they die off eventually and get consumed by the mycelium. this is just my experience, I have only done about 300 lbs of straw so far.


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Offlineinvitro


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Re: Lime vs steam pasteurization [Re: SpeakSoftly]
    #23432104 - 07/11/16 01:24 PM (7 years, 6 months ago)

Quote:

SpeakSoftly said:
We gave the Lime bath method a good try here in Texas, and got mixed results. Pretty low BE, and too much contamination for it to be worth it. Now we're using a livestock tank with a heating element to pasteurize the subs up to 165f for a couple hours. Should no for sure which works better for us in a couple weeks.




They also confirmed what your saying, mixed results, most people don't use it and do the steam treatment.


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Offlineinvitro


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Re: Lime vs steam pasteurization [Re: soil]
    #23432114 - 07/11/16 01:29 PM (7 years, 6 months ago)

Quote:

soil said:
we grow out own wheat and dry corn. on the shredded stalks we use lime to pasteurize it. works very well for us and very little contamination. our wheat straw has grain in it here and there, we actually get sprouting grains from the bags, they die off eventually and get consumed by the mycelium. this is just my experience, I have only done about 300 lbs of straw so far.




I was thinking some grains would get pulverized and cause contamination but I don't know for sure.


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OfflineGiblets and Juice
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Re: Lime vs steam pasteurization *DELETED* [Re: Yerow]
    #23432910 - 07/11/16 07:06 PM (7 years, 6 months ago)

Post deleted by Giblets and Juice

Reason for deletion: uu



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OfflineYerow
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Re: Lime vs steam pasteurization [Re: Giblets and Juice]
    #23432926 - 07/11/16 07:13 PM (7 years, 6 months ago)

Sounds like a good idea, a quick wash first to get the worst of the seeds and whatnot. The soap cant hurt on the pasteurising either :thumbup: :takingnotes:


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Offlinedrake89
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Re: Lime vs steam pasteurization [Re: Yerow]
    #23433516 - 07/11/16 10:16 PM (7 years, 6 months ago)

It just depends on conditions on the ground, whether or not lime and detergent will work.  Worth a shot cause propane is expensive and hydrated lime is cheap.  Cotton seed hulls are a good boost too


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Offlinedrake89
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Re: Lime vs steam pasteurization [Re: drake89]
    #23433521 - 07/11/16 10:17 PM (7 years, 6 months ago)

My neighbors didn't even cut straw this year


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OfflineGr0wer
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Re: Lime vs steam pasteurization [Re: drake89]
    #23433787 - 07/12/16 12:07 AM (7 years, 6 months ago)

I was a big fan of hot water bath. I had good results with straw, 20% fuel pellets and around 3% organic fertilizer. Got as much as 30 lbs first flush off 65 lbs of dry sub. The straw i was getting had a lot of seeds and lime typically had some contam spots.


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Offlineinvitro


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Re: Lime vs steam pasteurization [Re: drake89]
    #23433972 - 07/12/16 03:21 AM (7 years, 6 months ago)

Quote:

drake89 said:
It just depends on conditions on the ground, whether or not lime and detergent will work.  Worth a shot cause propane is expensive and hydrated lime is cheap.  Cotton seed hulls are a good boost too




What percentage of seed hulls do you use?


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Offlineinvitro


Registered: 05/03/13
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Re: Lime vs steam pasteurization [Re: Gr0wer]
    #23433995 - 07/12/16 03:50 AM (7 years, 6 months ago)

Quote:

Gr0wer said:
I was a big fan of hot water bath. I had good results with straw, 20% fuel pellets and around 3% organic fertilizer. Got as much as 30 lbs first flush off 65 lbs of dry sub. The straw i was getting had a lot of seeds and lime typically had some contam spots.




In another thread, drake said:
Right now I'm averaging 1.5# or so per bag first flush. (from 5 lbs sterilized sawdust+soy hulls), which is 30 percent BE first flush.

but 30lbs off 65 is awesome. 

@gr0wer: Why not just stick with straw?


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OfflineGr0wer
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Re: Lime vs steam pasteurization [Re: invitro]
    #23434896 - 07/12/16 12:59 PM (7 years, 6 months ago)

Drake is comparing wet weight, im doing dry. Drake gets about 1.5 lbs off about 2.5-3 lbs of dry sub. Im getting around 1 lb first flush off the same but still dialing in, also a bit warm in my chamber 3014.  The main reason why i swapped was due to how dirty straw is, makes a mess of your prep area and  incubation stinks a few days after inoculation.


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Invisibleweetsie
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Re: Lime vs steam pasteurization [Re: soil]
    #23438247 - 07/13/16 04:23 PM (7 years, 6 months ago)

Quote:

soil said:
we grow out own wheat and dry corn. on the shredded stalks we use lime to pasteurize it. works very well for us and very little contamination. our wheat straw has grain in it here and there, we actually get sprouting grains from the bags, they die off eventually and get consumed by the mycelium. this is just my experience, I have only done about 300 lbs of straw so far.




Increased BE through grass photosynthesizing additional substrate?  :pipesmoke:


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