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Offlinetrip352
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Hot water circulation?
    #19288476 - 12/17/13 12:53 PM (10 years, 1 month ago)

I built a pasteurizer with a temp controller, bucket heater and a cooler... But the pump I had seems to shut off at pasteurization temps.  Any ideas how to evenly disperse the heat?

Also.... Can you pasteurize for to long? Would letting substrate sit over night in the thing be bad?


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Offlinesilverstem
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Re: Hot water circulation? [Re: trip352]
    #19288601 - 12/17/13 01:21 PM (10 years, 1 month ago)

Quote:

RogerRabbit said:
Quote:

sgfcchamber said:
If you don't feel like reading the whole post, here is my question summed up:
Is it possible to pasteurize a bulk substrate for too long if the temperature never exceeds 150F or drops below 140F?  Is it okay to hold those temps for, say, 2, 3, 4 or 5 hours and still be left as pasteurized and acceptable to use?




Yes, don't exceed 2 hours.  You want some of the microbes to survive because they help to keep the substrate 'alive' and resistant to molds.




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InvisiblePirateSwazey
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Re: Hot water circulation? [Re: silverstem]
    #19288704 - 12/17/13 01:45 PM (10 years, 1 month ago)

How big is this thing?

I have seen a guy on here using vacuum hoses (for auto cooling systems) attached to his PC (for a steam source), and feeding this into a large freezer chest without worrying about dispersing the heat evenly.

There is also another bulk pasteurization tek I have seen where a guy was using a similar method, but his hose ran into a PVC with evenly drilled holes down it to help disperse the heat properly.

Just from what I've gathered some people worry about it and some people don't. I don't really have an opinion for ya since I just use my PCs to pasteurize :shrug:

Does your pump have to be inside with the steam? Can you just put it outside so your invention will work how you originally intended?

I'd like to see it, load up some pics! :cool:


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