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Offlinesplifner180
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Pastuerizing Temps and Duration
    #5735284 - 06/10/06 07:24 PM (17 years, 9 months ago)

Got curious, hit up Wikipedia's entry on pasteurization, and noticed this:

HTST (high temperature/short time) involves holding the milk at a temperature of 161.5 degrees Fahrenheit (or 72 degrees Celsius) for at least 15 seconds.

And it got me thinking... I've seen a couple of teks on pasteurization methods. The one I'm currently using calls for 170F to be held for about two hours. Why such a drastic difference between milk and hpoo on the duration of exposure to 160-170F or so? Is it merely to insure that all parts of the hpoo reach 170?

If this is the case, wouldn't a judicious and careful check of different parts of the mixture with a thermometer insure uniformity of pasteurization temps? Is 2 hours truly necessary, or just a foolproof method of making sure the job is done correctly?

tia - splif


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Invisiblemonstermitch
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Re: Pastuerizing Temps and Duration [Re: splifner180]
    #5735297 - 06/10/06 07:28 PM (17 years, 9 months ago)

foolproof, you could say.

water heats fast.
poo, not so fast.

1 hour should be fine.


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InvisibleRoadkillM
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Re: Pastuerizing Temps and Duration [Re: splifner180]
    #5735299 - 06/10/06 07:29 PM (17 years, 9 months ago)

If you read my horse poo tek...

my pastuerization time isn't as long as the other ones.

:tongue:

and mine works fine...and is older than the rest!~

:smile:


tc


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OfflineSnaggletooth
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Re: Pastuerizing Temps and Duration [Re: splifner180]
    #5735300 - 06/10/06 07:29 PM (17 years, 9 months ago)

Milk is not hpoo,

Further milk is a consumable product, there are regulations that would be involved like the FDA, as poo is not.


Two different things entirely and can not be compared.


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OfflineSnaggletooth
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Re: Pastuerizing Temps and Duration [Re: Roadkill]
    #5735311 - 06/10/06 07:31 PM (17 years, 9 months ago)

Quote:

Roadkill said:
If you read my horse poo tek...

my pastuerization time isn't as long as the other ones.

:tongue:

and mine works fine...and is older than the rest!~

:smile:


tc






Ahh yes, even old hands can be forgetful :wink:

horse poo tek pictorial


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Offlinethenewguy05
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Re: Pastuerizing Temps and Duration [Re: splifner180]
    #5735317 - 06/10/06 07:33 PM (17 years, 9 months ago)

milk is a liquid. poo is a solid. poo will have a core temp as the liquid will have a relative temp.

personally i wouldn't have it any other way. the prolonged temps also kills seeds, larva, eggs of flies and other insects. i have had a spider crawl out of a 130degree Farenheit hot water bath before so i won't even challenge it.

p.s. i like your sig splif

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Offlinesplifner180
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Re: Pastuerizing Temps and Duration [Re: thenewguy05]
    #5735420 - 06/10/06 08:05 PM (17 years, 9 months ago)

I'm going with Roadz' method.

I just wish I had a bigger pot. This thing is tiny.

I do find some humor in the fact that I picked a hobby that involves boiling horse shit, though.

splif


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First Grow: Ecuador -> LC -> HPoo/Straw -> Monotub
Build a Do-It-Yourself Magnetic Stirrer in thirty minutes with no money.

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OfflineSnaggletooth
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Re: Pastuerizing Temps and Duration [Re: splifner180]
    #5735436 - 06/10/06 08:12 PM (17 years, 9 months ago)

I'd never thought that I would shovel hpoo, take it home and play with it, 


Though a few teachers in high school, would have though I would do that for a living,  :smirk:


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OfflineRogerRabbitM
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Re: Pastuerizing Temps and Duration [Re: Snaggletooth]
    #5735661 - 06/10/06 09:11 PM (17 years, 9 months ago)

The other day, my sister in law was visiting and needed to use the phone. Under the phone are listings for emergency, doctor, family, and an entry with a phone number called 'horse poop'. The lady nearly fell to the floor laughing out loud.
RR


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