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North Spore Shop: Bulk Substrate

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InvisibleShroominit
Part Time Mycologist


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Registered: 11/29/08
Posts: 4,662
Re: Presto 23 qt question? [Re: kiyote]
    #9960279 - 03/12/09 06:49 PM (14 years, 11 months ago)

Use 1500-2000w if you go electric. 1000w takes ~ 1hr to heat to 15psi.


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Offlineextrememetal43
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Registered: 05/11/08
Posts: 18
Last seen: 3 years, 10 months
Re: Presto 23 qt question? [Re: Shroominit]
    #9960702 - 03/12/09 07:43 PM (14 years, 11 months ago)

Did you ever try it with less water...seriously less than an inch, dont let it touch the bottom of your jars!  sounds like you have a kinda half assed burner to begin with, that coupled with way too much water and it just might not be getting to a boil.  any shitty burner should get 3/4 inch water in a sealed pot to boil.


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Offlineiskinbash
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Registered: 09/25/08
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Re: Presto 23 qt question? [Re: kiyote]
    #9961058 - 03/12/09 08:40 PM (14 years, 11 months ago)

Quote:

kiyote said:
Quote:

Ive never experienced that. Once it gets to 15psi, i have to turn the heat down so the rocker doest go absolutely bonkers. I get steady pressure coming out of the rocker once it reaches 15psi, for how ever long i want it to go.




You know, I JUST figured this one out?  I used to let the gas go, and it would vent, make noise like crazy, and stay at 15 psi, but then I realize that I could drop the heat, it would still stay at 15 psi but make a lot less noise and cool down in a tenth of the time.  xD






yup. pressure only comes out of the rocker if it exceeds 15psi. if you turn the heat down so the pc just barely hisses, you can pressure cook for hours.


--------------------
*iskinbash is merely a fictional character placed in a real life environment.


Edited by iskinbash (03/12/09 08:42 PM)


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Offlineronjohn7779
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Registered: 10/28/08
Posts: 1,373
Last seen: 12 years, 8 months
Re: Presto 23 qt question? [Re: kiyote]
    #9961194 - 03/12/09 09:09 PM (14 years, 11 months ago)

Heres what is most likely wrong...
1. You placed too much water in it.
2. Before you put the lid on the PC you need the water to be boiling fucking hot. Not doing so will take a long ass time to heat up. It also could damage the PC.
3. When you put the lid on the PC make sure the weight is NOT on the PC. Wait till some steam comes out of the weight valve (obviously DON'T place the weight when a hugh flux of steam is shooting out. Just a gentle visable amount. Always do this with some degree of caution). Your user manual even tells you to do this.

4. You might just not have a hot enough of a flame. I've mistakenly left the smoke duct on that';s right next to my burners (I have an upper smoke duct and a lower one). The lower one pulled too much of the flame away from the PC. This didn't allow it to hit 15 PSI.

5. If you aren't ever able to hit 15 PSI you can cook at a lower PSI just tact on an extra 15-30 mins of cooking time.

6. Make sure your PC isn't damaged. Presto's have a 5 year warranty (maybe longer) call them.

7. You might actually be hitting 15 PSI and your gauge is just fucked up. The manual says it's suppose to be checked for accuracy before you use it and every couple of months. I'm sure no one does it. But a bad gauge could be a possibility.

8. If your weight is rocking then you hit 15 PSI. If it's violently rocking your heading towards 20 PSI. So thats one way to tell if your cooking at the right PSI without the gauge.


--------------------
"Lennox Lewis, I'm coming for you man. My style is impetuous. My defense is impregnable, and I'm just ferocious. I want your heart. I want to eat his children. Praise be to Allah!" An American Hero Iron Mike!


Edited by ronjohn7779 (03/12/09 09:11 PM)


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OfflineOption
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Registered: 02/16/08 Happy 16th Shroomiversary!
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Last seen: 10 years, 2 months
Re: Presto 23 qt question? [Re: Shroominit]
    #9964725 - 03/13/09 01:01 PM (14 years, 11 months ago)

Quote:

Shroominit said:
Use 1500-2000w if you go electric. 1000w takes ~ 1hr to heat to 15psi.




Yeah, the unit I was using is 1500W. I guess it's just not enough or maybe since I started it's lost some of it's effectiveness... just using it for boiling and making substrate now.

Quote:

extrememetal said:
Did you ever try it with less water...seriously less than an inch, dont let it touch the bottom of your jars!  sounds like you have a kinda half assed burner to begin with, that coupled with way too much water and it just might not be getting to a boil.  any shitty burner should get 3/4 inch water in a sealed pot to boil.




Never bothered trying it with less water, I figured too little water and it may evaporate, it's happened in my other PC's. I guess it is a half assed burner, in theory it should work the same as a regular stove top, guess not.

Quote:

ronjon said:

Heres what is most likely wrong...
1. You placed too much water in it.
2. Before you put the lid on the PC you need the water to be boiling fucking hot. Not doing so will take a long ass time to heat up. It also could damage the PC.
3. When you put the lid on the PC make sure the weight is NOT on the PC. Wait till some steam comes out of the weight valve (obviously DON'T place the weight when a hugh flux of steam is shooting out. Just a gentle visable amount. Always do this with some degree of caution). Your user manual even tells you to do this.

4. You might just not have a hot enough of a flame. I've mistakenly left the smoke duct on that';s right next to my burners (I have an upper smoke duct and a lower one). The lower one pulled too much of the flame away from the PC. This didn't allow it to hit 15 PSI.

5. If you aren't ever able to hit 15 PSI you can cook at a lower PSI just tact on an extra 15-30 mins of cooking time.

6. Make sure your PC isn't damaged. Presto's have a 5 year warranty (maybe longer) call them.

7. You might actually be hitting 15 PSI and your gauge is just fucked up. The manual says it's suppose to be checked for accuracy before you use it and every couple of months. I'm sure no one does it. But a bad gauge could be a possibility.

8. If your weight is rocking then you hit 15 PSI. If it's violently rocking your heading towards 20 PSI. So thats one way to tell if your cooking at the right PSI without the gauge.




1. Never bothered trying it.

2. Never boiled the water... also it doesn't make sense that it could damage it, how would that happen?

3. I left the weight off for a little today over my new stove top (pictured below) I placed it on after probably the water just started boiling... still worked fine.

4. I'm pretty sure this was the problem with the electric burner, the gas one I got works great.

5. I don't really think this is true, lots of bacteria won't die until it hits 240 degrees or higher... I'd rather be safe than sorry.

6. Worked fine today.

7. Gauge wasn't fucked up, works great actually.

8. See above.

The new stove top I got is just a regular propane camping stove. It's rated at 10,000 btu's. Although it took a while to get everything to work out alright... bought a burner earlier that was rated at 15,000 btu's, should've read the box before buying it. I'm going to return it so no big deal. I grabbed one of my dad's 5 gallon propane bottles and was planning on hooking it up to the one I got... unfortunately the adapter I got to make it work didn't work. I ended up just buying a 16.4oz bottle of propane from target to connect to my camping stone... surprisingly those bottles have enough in them for at least one pressure cooking run, probably two, and they only cost $2 a piece.

So I'm sold on the new stove... works great, runs relatively cheaply (not as cheap as an electric of course), and I can actually take it with me anywhere I want, not that I ever will.

http://www.walmart.com/catalog/product.do?product_id=9870596

That's basically what it is, although not the same model... can't find the model I got, but it was only $28.

Eventually I am going to get an adapter to hook up the 5 gallon tanks... if 16.4ozs lasts for one maybe two runs, I can't imagine how long a 5 gallon tank would last.


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Offlineronjohn7779
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Registered: 10/28/08
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Re: Presto 23 qt question? [Re: Option]
    #9964861 - 03/13/09 01:26 PM (14 years, 11 months ago)

Quote:

Option said:
Quote:

ronjon said:

Heres what is most likely wrong...
2. Before you put the lid on the PC you need the water to be boiling fucking hot. Not doing so will take a long ass time to heat up. It also could damage the PC. (IGNORE I WROTE IT ON THE WRONG LINE)
3. When you put the lid on the PC make sure the weight is NOT on the PC. Wait till some steam comes out of the weight valve (obviously DON'T place the weight when a hugh flux of steam is shooting out. Just a gentle visable amount. Always do this with some degree of caution). Your user manual even tells you to do this.




2. Never boiled the water... also it doesn't make sense that it could damage it, how would that happen?






To address point two the boiling water helps speed up the getting to 15 PSI. Boil the water in the PC without the lid on. It really does speed things up. If you don't do this step it can take 15-30 mins (or longer) to get to 15 PSI. If use the boiling water it will get to 15 PSI in 2-5 mins max.

To address point three/ part of two (I intend to put the part of damaging on line 3. I must have fucked up the copy and paste). the reason why you want a stream of steam to come out of the top is so that you know that a constant leave of Pressure is being created. Not doing so could cause pockets of pressure (unlikely but it has happened) this usually ends up with the PC going BOOM. That's why they tell you to do this. That's what I mean by damage. Sometimes even the lids will pop off because of this. So you might want to do this step to be on the safe side. Basically it pushes out all the pressure from top pressure valve thus creating uniform pressure in the inside. I personally wouldn't skip this step.


--------------------
"Lennox Lewis, I'm coming for you man. My style is impetuous. My defense is impregnable, and I'm just ferocious. I want your heart. I want to eat his children. Praise be to Allah!" An American Hero Iron Mike!


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OfflineOption
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Registered: 02/16/08 Happy 16th Shroomiversary!
Posts: 74
Last seen: 10 years, 2 months
Re: Presto 23 qt question? [Re: ronjohn7779]
    #9966289 - 03/13/09 06:22 PM (14 years, 11 months ago)

Okay, yeah, that does make more sense.

So, getting the water to a boil first, put the lid on, then wait until there's a steady but light stream of steam and put the weight on. I'll be doing this on Sunday again so I'll be giving that a try and seeing how much longer or shorter it will take.

I didn't exactly time it today, but it was around 30 minutes to get to 15psi.


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InvisiblePeterthinks
(Caulking) gun for hire

Registered: 11/10/04
Posts: 2,379
Re: Presto 23 qt question? [Re: Option]
    #9966316 - 03/13/09 06:30 PM (14 years, 11 months ago)

Or you could just read the directions.

http://www.gopresto.com/products/manuals.php

:jester:


--------------------
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Set a man on fire and he will be warm for the rest of his life.
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Offlineshroomer17
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Re: Presto 23 qt question? [Re: Peterthinks]
    #9966552 - 03/13/09 07:23 PM (14 years, 11 months ago)

I dont see why you'd go through the hassle of using a gas burner when your 1500w electric one would probably work fine if you followed the suggestions in this thread.


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North Spore Shop: Bulk Substrate


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