Pressure cooker

Lloyd Gordon

Parasitic Plant Aficionado
Staff member
I use a pressure cooker for my sterilization. It used to be annoying trying to adjust it. Then I bought an induction hot plate because of a kitchen upgrade.
Now the sterilization is trivial. Set to boil, wait for the steam, set it to 250°F and the timer for 20 minutes and it shuts off when it's done. Just the right head of steam.
 

WillyCKH

CPSC Moderator
Staff member
It has timer-shut off function?! That's awesome. I hate sitting around to wait for the cooler to finish it's cycle...
 

Lloyd Gordon

Parasitic Plant Aficionado
Staff member
The timer is great. Even better is the temperature control: no crazy whistling, no under pressure, no constant twiddling with the gas. Also more efficient because it heats the pot directly.
 
Im in the process of getting setup with a cooker. What brand of hot plate is it? I'd rather do this in my basement than in the kitchen anyways..
 

Lloyd Gordon

Parasitic Plant Aficionado
Staff member
It's a Max Burton 6400 induction hotplate. You can get them a lot cheaper but I wanted one to cook with too and I like the 15 temperature settings and timer. It looks nice too.
Our kitchen is out of service for 2 months so it's going to be getting a lot of use.
You need a base that's got iron in it. I like the Presto 8 quart cooker (15psi). It easily does 5 baby food bottles.
Use distilled water to keep the cooker in good shape.
 
Thanks!. I've got a small pressure cooker that we aren't using anymore so i might start off with that to see how it goes and then upgraded to a bigger one if i have the need..
 
i used to use an electric pressure cooker, none of them get up to 15 bar as far as i know. never had problems with contam, probably get to about 70-80 kpa or 10-11 psi. even had cultures that i left for 3 years when i went travelling (the plants were dead, but there was no contamination). might be due to the PPM content though, but i had some that get contaminated from explant tissue in same media

its common rhetoric to say at least 15 bar but has anyone had any problems with using an electric cooker, which as far as i know none are capable of it
 

Lloyd Gordon

Parasitic Plant Aficionado
Staff member
The Presto 8 gallon 15 psi pressure cooker is reliable, reasonably priced and long lasting with easy to get and cheap replacement parts. I highly recommend it.
 
yeah, nothing beats the convinience of an electric one though.. self timing, self regulating, presets etc, and dont have to take up the kitchen and balance temperatures . just getting back into the hobby and looking at my options. i didnt have any problems last time when i just had a cheap electric pressure cooker

just curious if anyone has actually tried and had issues with a lower PSI cooker for sterilizing
 

Lloyd Gordon

Parasitic Plant Aficionado
Staff member
I also have an induction cook top which basically allows digital temperature control and timing for the pressure cooker. I've always used the 15 psi unit. I know you can also use a microwave which means you could probably use any pressure cooker.
 
I also have an induction cook top which basically allows digital temperature control and timing for the pressure cooker. I've always used the 15 psi unit. I know you can also use a microwave which means you could probably use any pressure cooker.
yeah cool, microwave probably not as good as you couldn't easily sterilize towel and syringes/tools
im still waiting a few weeks for some supplies to arrive from overseas but i think ill also get an 8l electric cooker, never had any endogenous media contam last time i was doing this stuff with an 80 kp/ 10-11 psi pressure cooker.
ill let you know how it goes
 
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