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Offlinejtb
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An extension of RR's pasteurization method
    #10599871 - 06/30/09 07:45 PM (15 years, 6 months ago)

I have been reading about bulk pasteurization as i am trying to figure out the way i want to do it.  I like RR's tek of loading all of the substrate or casing into quart jars and submerging them in hot water.  However, it seems like a lot of trouble to load up that many quart jars... so i changed it up a little..

please critique this pasteurization method:

I have a pretty wide PC and a big 2.5 gallon pot that would fit inside the PC.  Instead of filling quart jars with substrate, i would fill my big ole pot, cover it up nice and tight, and then fill the PC with water and heat it up.  I would occasionally stick a thermo into the middle of the substrate to get it to around 155F and then figure out how hot i should keep the water.  When it gets to 155F allow it to pasteurize for an hour or so, then allow it to cool and im all set.

from what i can gather the big advantage of using quart jars is that the heat quickly gets distributed evenly so you aren't over-pasteurizing the outer substrate before the core can get to the right temp.  so i was thinking i could just stir the substrate well every 5-10 minutes or so while it is heating up to try to keep it heated evenly.  another thing to be noted is that the inner pot should be submerged fully in water (or as high as the substrate is) so the bottom portion of substrate isn't heated faster than the top, but again, stirring well and frequently could maybe remedy this.  seems like it would work pretty well, and while it make take a little longer, it is certainly less laborious than loading up and emptying tons of quart jars.. any thoughts?

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OfflineLennyk
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Re: An extension of RR's pasteurization method [Re: jtb]
    #10599970 - 06/30/09 08:08 PM (15 years, 6 months ago)

Sounds good, people have loaded up heat resistant bags and pasteurized in 55 gallon drums too. If you moisture content stays good, by all means go for it, as it would seem to distribute the heat well being metal.


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Offlinejtb
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Re: An extension of RR's pasteurization method [Re: Lennyk]
    #10600033 - 06/30/09 08:20 PM (15 years, 6 months ago)

yah it just seems so simple i don't know why people wouldn't already be talking about it... having to deal with a sloppy shit pillowcase just seems like no fun

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OfflineLennyk
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Re: An extension of RR's pasteurization method [Re: jtb]
    #10600050 - 06/30/09 08:25 PM (15 years, 6 months ago)

Yeah pillow cases seem to be a painful method, at least with quarts the moisture content is good to go and chances are one would have a fair amount of quart jars on hand.  I pasteurize in a bag suitable for pressure cooking but has no filter patch, and is easy to twist off.

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OfflineRogerRabbitM
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Re: An extension of RR's pasteurization method [Re: Lennyk]
    #10600200 - 06/30/09 08:51 PM (15 years, 6 months ago)

I'm curious how you figure constantly stirring a pot of casing mix is easier than loading the jars and watching a movie while they pasteurize?  It takes about ten seconds to load a quart jar.  Regardless, any method that gets the material to the correct temperature for the correct time is going to work.
RR


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OfflineLennyk
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Re: An extension of RR's pasteurization method [Re: RogerRabbit]
    #10600249 - 06/30/09 08:59 PM (15 years, 6 months ago)

I usually end up hovering over my stuff anyway, I don't stir mine up, at least I haven't had to yet.. (didn't see the OP mentioning that) I would use quarts myself with your method, but I only have around 4, as I use bags instead of jars.

If I were the OP I would check to see if stirring that much is actually helping or just more work.

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Offlinejtb
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Re: An extension of RR's pasteurization method [Re: RogerRabbit]
    #10600456 - 06/30/09 09:40 PM (15 years, 6 months ago)

Quote:

RogerRabbit said:
I'm curious how you figure constantly stirring a pot of casing mix is easier than loading the jars and watching a movie while they pasteurize?  It takes about ten seconds to load a quart jar.  Regardless, any method that gets the material to the correct temperature for the correct time is going to work.
RR




yeah i guess its not that much easier, however if it heats up relatively quickly and if stirring once every 10 or 15 minutes is all that is required, i would likely go with the big pot method over the quart jars.  i think material in a big pot would also cool faster than in quart jars as well, especially if you stirred it (without opening the lid too much!).  however, i don't know how much stirring is really required to keep the heat evenly distributed, and im not going to know until i try it.  so im going to give it a shot and see how quickly and evenly the heat disperses with a quick stir every 10 minutes.

I actually looked around some more and agar already explained this idea here:

http://www.shroomery.org/forums/showflat.php/Number/6798435#6798435

however, his instructions don't include any stirring, and i can't help but think that some of the substrate/casing is being over-pasteurized without the stirring.

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