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splifner180
Student
Registered: 03/24/06
Posts: 1,288
Loc: USA, East Coast
Last seen: 1 year, 5 months
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Pastuerizing Temps and Duration
#5735284 - 06/10/06 07:24 PM (17 years, 9 months ago) |
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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
-------------------- First Grow: Ecuador -> LC -> HPoo/Straw -> Monotub Build a Do-It-Yourself Magnetic Stirrer in thirty minutes with no money.
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monstermitch
Growing in Bags Doesn't Work
Registered: 02/10/06
Posts: 3,911
Loc: Arizona Bay
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Re: Pastuerizing Temps and Duration [Re: splifner180]
#5735297 - 06/10/06 07:28 PM (17 years, 9 months ago) |
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foolproof, you could say.
water heats fast. poo, not so fast.
1 hour should be fine.
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Roadkill
Retired Shroomery Mod
Registered: 12/11/01
Posts: 22,674
Loc: Montana
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Re: Pastuerizing Temps and Duration [Re: splifner180]
#5735299 - 06/10/06 07:29 PM (17 years, 9 months ago) |
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If you read my horse poo tek...
my pastuerization time isn't as long as the other ones.
and mine works fine...and is older than the rest!~
tc
-------------------- Laterz, Road Who the hell you callin crazy? You wouldn't know what crazy was if Charles Manson was eating froot loops on your front porch! Brainiac said: PM the names with on there names, that means they have mushrooms for sale.
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Snaggletooth
Stranger in a Strange Land
Registered: 10/24/05
Posts: 6,109
Loc: blinks stupidly
Last seen: 6 years, 10 months
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Re: Pastuerizing Temps and Duration [Re: splifner180]
#5735300 - 06/10/06 07:29 PM (17 years, 9 months ago) |
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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.
-------------------- Atheist Chat
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Snaggletooth
Stranger in a Strange Land
Registered: 10/24/05
Posts: 6,109
Loc: blinks stupidly
Last seen: 6 years, 10 months
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Re: Pastuerizing Temps and Duration [Re: Roadkill]
#5735311 - 06/10/06 07:31 PM (17 years, 9 months ago) |
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Quote:
Roadkill said: If you read my horse poo tek...
my pastuerization time isn't as long as the other ones.
and mine works fine...and is older than the rest!~
tc
Ahh yes, even old hands can be forgetful
horse poo tek pictorial
-------------------- Atheist Chat
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thenewguy05
The Mushroom Man
Registered: 02/11/05
Posts: 2,123
Loc: My Underground Layer
Last seen: 2 years, 7 months
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Re: Pastuerizing Temps and Duration [Re: splifner180]
#5735317 - 06/10/06 07:33 PM (17 years, 9 months ago) |
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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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splifner180
Student
Registered: 03/24/06
Posts: 1,288
Loc: USA, East Coast
Last seen: 1 year, 5 months
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Re: Pastuerizing Temps and Duration [Re: thenewguy05]
#5735420 - 06/10/06 08:05 PM (17 years, 9 months ago) |
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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
-------------------- First Grow: Ecuador -> LC -> HPoo/Straw -> Monotub Build a Do-It-Yourself Magnetic Stirrer in thirty minutes with no money.
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Snaggletooth
Stranger in a Strange Land
Registered: 10/24/05
Posts: 6,109
Loc: blinks stupidly
Last seen: 6 years, 10 months
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Re: Pastuerizing Temps and Duration [Re: splifner180]
#5735436 - 06/10/06 08:12 PM (17 years, 9 months ago) |
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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,
-------------------- Atheist Chat
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RogerRabbit
Bans for Pleasure
Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 1 month
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Re: Pastuerizing Temps and Duration [Re: Snaggletooth]
#5735661 - 06/10/06 09:11 PM (17 years, 9 months ago) |
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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
-------------------- Download Let's Grow Mushrooms semper in excretia sumus solim profundum variat "I've never had a failed experiment. I've only discovered 10,000 methods which do not work." Thomas Edison
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