Sterilizing and pasteurizing... confused! - Mushroom Cultivation

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Gliders
Oh, hello!

Registered: 08/29/05
Posts: 284
Last seen: 17 years, 3 months

Sterilizing and pasteurizing... confused!

#5271458 - 02/06/06 09:31 PM (18 years, 2 months ago)

I've searched and read posts where people discussed sterilizing and pasteurizing, but I still can't figure out the difference. The best I can come up with is that sterilizing is done in the PC and pasteurizing is done by baking? But then again, other people mention using a microwave, etc.

Bottom line: What I need to do is make my 50/50 verm/ peat mixture never smell like a combination of scotch and feet again. What's the best way for me to do this?

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Snaggletooth
Stranger in a Strange Land

Registered: 10/24/05
Posts: 6,109
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Re: Sterilizing and pasteurizing... confused!

[Re: Gliders]
#5271481 - 02/06/06 09:37 PM (18 years, 2 months ago)

Sterilizing

Pasteurization

You want to Sterilize the 50/50 mix, nuke it for 3-5 min then stir and then 3-5min again, don't open till cool and ready to use

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gourmetgrower
I'ze the milkmanwhat knocked upyer maw

Registered: 01/29/06
Posts: 170
Loc: The Old West
Last seen: 18 years, 1 month

Re: Sterilizing and pasteurizing... confused!

[Re: Gliders]
#5271488 - 02/06/06 09:38 PM (18 years, 2 months ago)

Simple answer:

Sterilizing is what happens when you (hopefully) remove all microbial life from a substrate. It is usually done in a pressure cooker or autoclave. 15psi for 75 min is what I do for quart jars of casing.

Pasteurizing is what happens when you kill unwanted microbial life, such as mold and nasty bacteria, in a substrate. Beneficial microbes are left behind. This can be done by cooking at 170 for an hour or so (although I do it for longer).

If you have a pressure cooker, use it. Otherwise, there are other methods of sterilizing and pasteurizing. Search the board.

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Howdy, boys! Let's get down to business. I got my colt and my schofield, and they's jist itchin to be broken in.

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gourmetgrower
I'ze the milkmanwhat knocked upyer maw

Registered: 01/29/06
Posts: 170
Loc: The Old West
Last seen: 18 years, 1 month

Re: Sterilizing and pasteurizing... confused!

[Re: gourmetgrower]
#5271490 - 02/06/06 09:39 PM (18 years, 2 months ago)

Damn, Snaggletooth types faster than me.

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Howdy, boys! Let's get down to business. I got my colt and my schofield, and they's jist itchin to be broken in.

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Snaggletooth
Stranger in a Strange Land

Registered: 10/24/05
Posts: 6,109
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Re: Sterilizing and pasteurizing... confused!

[Re: gourmetgrower]
#5271495 - 02/06/06 09:42 PM (18 years, 2 months ago)

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Gliders
Oh, hello!

Registered: 08/29/05
Posts: 284
Last seen: 17 years, 3 months

Re: Sterilizing and pasteurizing... confused!

[Re: Snaggletooth]
#5272798 - 02/07/06 10:03 AM (18 years, 2 months ago)

Thanks guys!

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RemainRandom50
Do You Need ToKnow Me?

Registered: 01/15/06
Posts: 1,695
Last seen: 15 years, 7 days

Re: Sterilizing and pasteurizing... confused!

[Re: gourmetgrower]
#5273372 - 02/07/06 12:52 PM (18 years, 2 months ago)

Quote:

gourmetgrower said:
Simple answer:

Sterilizing is what happens when you (hopefully) remove all microbial life from a substrate. It is usually done in a pressure cooker or autoclave. 15psi for 75 min is what I do for quart jars of casing.

Pasteurizing is what happens when you kill unwanted microbial life, such as mold and nasty bacteria, in a substrate. Beneficial microbes are left behind. This can be done by cooking at 170 for an hour or so (although I do it for longer).

If you have a pressure cooker, use it. Otherwise, there are other methods of sterilizing and pasteurizing. Search the board.

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