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Amazon Shop: ½ Pint Jars, Agar, Autoclave, Pressure Cooker

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Invisibleagar
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The advantage of a big PC
    #3750938 - 02/08/05 02:34 PM (12 years, 8 months ago)


AA 941 (older sterilizer model)

36 quart jars in 2 runs (total time about 4 hours)


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Invisiblemetasin
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Re: The advantage of a big PC [Re: agar]
    #3750954 - 02/08/05 02:40 PM (12 years, 8 months ago)

:shocked:

I'm jealous


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Invisibletripndicular
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Re: The advantage of a big PC [Re: agar]
    #3750992 - 02/08/05 02:52 PM (12 years, 8 months ago)

Reminds me of an old saying ...

"IF you want to play with the big dogs you must learn how to bark real loud!"

WOOF! WOOF !


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Any information I give is not intended to aide you in the production of potentialy illegal substances !None of my exp comes from growing illegal varities , so take it as you will .
So with that said here is our mission statement .

Then the priest fell into a trance or swoon,& said unto the Queen of heaven ; Write unto us the ordeals; write unto us the rituals; write unto us the law !


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InvisibleTM
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Re: The advantage of a big PC [Re: agar]
    #3751019 - 02/08/05 03:01 PM (12 years, 8 months ago)

My old 921 had that stupid valve too.

I replaced it with a vent pipe and weight. Smartest thing you can do.

Get them here: http://www.mendingshed.com/allamreppar.html


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================================================



"Have some congratulatory drugs." - C. Montgomery Burns

I'll probably always do drugs, so that just contributes to the addiction to The Shroomery... It's a vicious circle of bliss. :tongue2:

TM™ :cool:


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InvisibleRoadkillM
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Re: The advantage of a big PC [Re: agar]
    #3751040 - 02/08/05 03:08 PM (12 years, 8 months ago)

Yeah that really is an advantage.

I have the AA #930

It barely fits on my stove.
The range hood sits a little low.

I don't think I could use a #941 on my stove.


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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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Invisibleagar
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Re: The advantage of a big PC [Re: TM]
    #3751090 - 02/08/05 03:23 PM (12 years, 8 months ago)

Quote:

TripMeister said:
My old 921 had that stupid valve too.

I replaced it with a vent pipe and weight. Smartest thing you can do.

Get them here: http://www.mendingshed.com/allamreppar.html




I beg to differ & love the older type Spring toggle valve. It releases no steam, unless you begin to exceeed safety pressure. Then it does. No weight to fool with. Mine has 2, so there is a GOOD safety factor. Mine starts to vent stream at around 24 psi, at 26 it whistles loudly, near 30 it shrieks very very loudly.

Advantage of old style valve is 1. no steam release with PC'ing (no moisture loss). 2. Once done PC'ing & cooled (with content remaining sterile inside), a very mild vaccum is formed inside PC. You can leave content for a day or two & nada nothing gets to inside.


GAUGE IN ACTION


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InvisibleRoadkillM
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Re: The advantage of a big PC [Re: agar]
    #3751130 - 02/08/05 03:33 PM (12 years, 8 months ago)

Quote:

agar said:
Quote:

TripMeister said:
My old 921 had that stupid valve too.

I replaced it with a vent pipe and weight. Smartest thing you can do.

Get them here: http://www.mendingshed.com/allamreppar.html




I beg to differ & love the older type Spring toggle valve. It releases no steam, unless you begin to exceeed safety pressure. Then it does. No weight to fool with. Mine has 2, so there is a GOOD safety factor. Mine starts to vent stream at around 24 psi, at 26 it whistles loudly, near 30 it shrieks very very loudly.

Advantage of old style valve is 1. no steam release with PC'ing (no moisture loss). 2. Once done PC'ing & cooled (with content remaining sterile inside), a very mild vaccum is formed inside PC. You can leave content for a day or two & nada nothing gets to inside.




Yeah I know what you mean bro.

I have an older AA model #910
It has the older style relief valve on it.
I still use this pressure cooker for making agar, honey water, sterilizing water, sterilizing syringes and other small items.

I love the older style relief valve..cause you can release some pressure off and get your pc to 15 psi on your pressure gauge while you are cooking.
And if the pressure goes up a little during cooking...you can vent off some pressure to get it back to 15 psi.

I was sorta pissed off when they did away with the old style relief valve.

Oh well...
I'm used to using the weight also.
Since my AA model #930 has the weight and not the relief valve.

They probably had alot of problems with the relief valve going bad...so they did away with it.


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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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InvisibleTM
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Re: The advantage of a big PC [Re: agar]
    #3751168 - 02/08/05 03:42 PM (12 years, 8 months ago)

Disadvantages to valves:

1) Very difficult to maintain constant 15psi without constant heat variation.

2) Heat/pressure quickly gets too high or too low if left unattended.

3) When valves release they make a LOUD NOISE.

4) Relying on the valves means over-cooking the contents.


Advantages to vent pipe/weight:

1) No heat adjustment required.

2) Maintains a perfect 15psi.

3) Extremely minimal moisture loss (negligible).

4) MUCH SAFER THAN THE VALVES!

5) EASIER TO USE THE PC!

And... Who cares if it holds a vacuum when it's cooled? All of the contents is
protected from contams when the cover is removed anyway.


--------------------
================================================



"Have some congratulatory drugs." - C. Montgomery Burns

I'll probably always do drugs, so that just contributes to the addiction to The Shroomery... It's a vicious circle of bliss. :tongue2:

TM™ :cool:


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Invisiblemetasin
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Re: The advantage of a big PC [Re: TM]
    #3751194 - 02/08/05 03:47 PM (12 years, 8 months ago)

I think what they were trying to say is that when the jars cool the air in them cools and compresses(for lack of a better word) sucking in the air that is around them. That means it pulls air up past the aluminum foil or whatever cover you have. Once the jars are at room temperature that isn't going to happen. If they are already at room temp the foil is enough, but when they are cooling the jars are sucking in whatever air is around them.


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InvisibleTM
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Re: The advantage of a big PC [Re: metasin]
    #3751212 - 02/08/05 03:51 PM (12 years, 8 months ago)

Nope.


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================================================



"Have some congratulatory drugs." - C. Montgomery Burns

I'll probably always do drugs, so that just contributes to the addiction to The Shroomery... It's a vicious circle of bliss. :tongue2:

TM™ :cool:


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Invisiblemetasin
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Re: The advantage of a big PC [Re: TM]
    #3751233 - 02/08/05 03:55 PM (12 years, 8 months ago)

Not trying to be a dick Tripmeister, and with all due respect, are you saying that without a vacuum you are not going to be pulling in outside air in the pc which could go into the jars? If you have a vacuum there is nothing entering the PC, which is why I kinda want a sterilizer.


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InvisibleTM
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Re: The advantage of a big PC [Re: metasin]
    #3751256 - 02/08/05 04:01 PM (12 years, 8 months ago)

First of all, you always want to remove your jars when they're hot and shake up
the grains so they don't clump when they're cool.

Secondly, the jars are sealed with Tyvek. What can possibly get into them?


--------------------
================================================



"Have some congratulatory drugs." - C. Montgomery Burns

I'll probably always do drugs, so that just contributes to the addiction to The Shroomery... It's a vicious circle of bliss. :tongue2:

TM™ :cool:


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Invisiblemetasin
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Re: The advantage of a big PC [Re: TM]
    #3751267 - 02/08/05 04:03 PM (12 years, 8 months ago)

damn, I started drinking too early, that is true. 'nuff said.


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Invisibleagar
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Re: The advantage of a big PC [Re: TM]
    #3751306 - 02/08/05 04:12 PM (12 years, 8 months ago)

Not worthwhile to argue the point... but.............

BOTTOM LINE is this.

Old style valves were in production & use 50 years.

AA went to weights because they are cheaper to produce.

I have NEVER had the problems you mention. Maybe because I use a very accurate large therodyne lab hot plate & hvy duty timer.

Once set, up to proper temp & pressured up, I have left them alone unwatched for hours & hours. Never nada a problem & have run more that a ton of material through them that way.


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InvisibleTM
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Re: The advantage of a big PC [Re: agar]
    #3751325 - 02/08/05 04:51 PM (12 years, 8 months ago)

Okay, to each his own.

I can't express how much happier I am with my vent pipe/weight on mine.

One of the best things I've ever done to improve a cultivation tool.


--------------------
================================================



"Have some congratulatory drugs." - C. Montgomery Burns

I'll probably always do drugs, so that just contributes to the addiction to The Shroomery... It's a vicious circle of bliss. :tongue2:

TM™ :cool:


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Invisibleagar
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Re: The advantage of a big PC [Re: TM]
    #3751354 - 02/08/05 05:03 PM (12 years, 8 months ago)

True, to each his own & I didn?t mean to sound or be argumentative on the matter of AA valves.

I own 4 AA?s presently & others in the past, all with the toggle valves. I have rebuilt them (the valves) a few times (cleaned & replaced spring). I think the valve spring in the one you had, may have been weak, or worn out. I say that because when it does get weak, it gets erratic & will not hold constant pressure.

Moreover, if you used yours on a stovetop, electric stove top elements fluctuate inside a variable heat range. Enough so, that would cause pressure to fluctuate - also.

With a toggle valve in good working order, it builds up pressure (& once it reaches the desired psi), you simply adjust the heat dial to maintain that pressure. Without additional heat, pressure does not continue to build. At least with mine, anyway.

As for the advantage of having a mild vacuum inside it, after it cools.

I (and commercial operations) PC filter patch spawn bags for G2G transfer, left unsealed (with rubber bands hold tops folded down). Once PC?ed & cooled, I remove them & G2G, then impulse seal.

I also PC filter patch bags of bulk substrates unsealed. Once PC?ed & cooled, spawn gets added, then bags are impulse sealed. There is no tyvek filter involved (other than filter/patch on the unsealed the bag).

So, the vacuum is better - in those instances. As nada nothing gets in the PC, while it?s cooling, or after it's cool.


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Edited by agar (02/08/05 05:30 PM)


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InvisibleArp
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Re: The advantage of a big PC [Re: agar]
    #3751374 - 02/08/05 05:08 PM (12 years, 8 months ago)

Most americans prefer the republican party.

thats all I have to say :smile:


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InvisiblePrisoner#1
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Re: The advantage of a big PC [Re: TM]
    #3751416 - 02/08/05 05:21 PM (12 years, 8 months ago)

Quote:

TripMeister said:
Disadvantages to valves:
1) Very difficult to maintain constant 15psi without constant heat variation.
2) Heat/pressure quickly gets too high or too low if left unattended.
3) When valves release they make a LOUD NOISE.
4) Relying on the valves means over-cooking the contents.





1. I havent experienced that problem with mine, I pre-heat, load and clamp the lid, temps rise and I adjust the heat over 30 minutes and it stays steady. it works the same with both styles.
2. see #1, leaving a PC unattended is dangerous and foolish.
3. never had a valve release from overpressure because I monitor it. see #2
4. the guage gives me a pressure/temp reading, I determine the time and turn it off before that overcooking occurs, see again #2


Quote:


Advantages to vent pipe/weight:
1) No heat adjustment required.
2) Maintains a perfect 15psi.
3) Extremely minimal moisture loss (negligible).
4) MUCH SAFER THAN THE VALVES!
5) EASIER TO USE THE PC!





1. sure there is, leaving it on high for 90 minuts will keep you at 15psi but where does the water go, want to talk about over cooking?
2. regardless of the heat setting on the stove, too high and it's noisy and wasteful of both energy and water and can lead to complete evaporation
3. when monitored properly it should only allow minimal loss and you'll hear a hiss every few seconds
4. valves arent spewing steeam, rocker weights are.
5. they are both equal, the valve is less annoying


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Invisibleagar
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Re: The advantage of a big PC [Re: Arp]
    #3751419 - 02/08/05 05:22 PM (12 years, 8 months ago)

IF WEIGHTS WERE THE BEST OR AN IMPROVEMENT?

WHY DO SPANKING BRAND NEW ALL AMERICAN STERILIZERS ALL COME WITH THE TOGGLE VALVE & NOT A WEIGHT:

75X

50X

25X

http://www.all-american-sterilizers.com/


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OfflineKaptKid
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Re: The advantage of a big PC [Re: agar]
    #3751448 - 02/08/05 05:29 PM (12 years, 8 months ago)

Sweet. :thumbup:

The only disadvantage for myself would be weight(got hit by a car). If I found one used I'd get it. No pain no gain :sun:


--------------------
Child of the 60's, Tripping ever since.


:sun:


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Amazon Shop: ½ Pint Jars, Agar, Autoclave, Pressure Cooker

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