Pressure cookers

[Unclefrank]

Need a little advice the Prestige Aluminium Pressure Cooker says in the booklet that it cooks at 7lb per square inch is this any good, does that mean the cooker cooks at 7 psi, i ask because the "norm" is 15 psi.
Please help.

[chewytikka]

Need a little advice the Prestige Aluminium Pressure Cooker says in the booklet that it cooks at 7lb per square inch is this any good, does that mean the cooker cooks at 7 psi, i ask because the "norm" is 15 psi.
Please help.

Hi UF
15psi is better but it just means cooking at 7psi will take a little longer.

Good tech advice here -
At normal atmospheric pressure, water boils at 100 degrees C (212 degrees F). If your pressure cooker raises the pressure by 7 PSI (pounds per square inch), the temperature goes up to 112 degrees C.  An increase of 15 PSI gives you 120 degrees, and a 37 PSI increase in pressure gives you 140 degrees C.  The higher the pressure, the faster your food will cook. There's no practical way to measure the pressure in your cooker, so, be warned: the timing in pressure cooker recipes may need to be modified based on the characteristics of your cooker. After a few tries, you should be able to get a feel for whether your cooker is faster or slower than typical.

cheers Chewy

[Unclefrank]

So would you advise me to take it back and get one that cooks at 15 psi,what psi is yours chewy

[chewytikka]

So would you advise me to take it back and get one that cooks at 15 psi,what psi is yours chewy

Hi UF
My cheap Russel Hobbs 4ltr cooks at 12.8psi, they all must vary somewhat.

But the higher the pressure the faster they cook, so It's your choice.

But if your not happy from the start, it will probably niggle you over time, so I would just change it.

cheers Chewy

[Unclefrank]

I will take it back and get a higher psi, thanks chewy.

[martinvic]

What about this one?

http://www.argos.co.uk/static/Product/partNumber/8605782/Trail/searchtext%3EPRESSURE+COOKER.htm

Large 7 litre, 15 psi (according to the Q&A).

[Unclefrank]

Hi martinvic that is the one i am going to get 

[Unclefrank]

Now i have been told that using tomato based stuff will wear the pan out if its aluminium.
Like i said before at the start of this thread i have never cooked and have no experience with a pressure cooker.

[PaulP]

I wouldn't worry about using bare aluminium for pots and pans. The current advice says don't store acidic food in bare aluminium but for cooking with it there is no problem.

Paul

[Unclefrank]

Cheers PaulP.