Amazon very kindly sent this to do a comparisons to my existing 6Litre pressure cooker the WMF Perfect Plus Pressure Cooker 6.5ltr 22cm diameter 18/10 stainless steel
which I've had around five years.
Firstly, the construction is very good, with a heavy base and nice internal machining. The Tefal pan is equally as big as my WMF cooker, but has the clear advantage of folding handles which really is a great addition.
Take note that because the pot is so large, it needs at least a 1/3 full pot of ingredients so it can pressurise correctly. Therefore this is great for large amounts of cooking but not for smaller amounts. Sometimes bigger is not better!
Once up to pressure it cooks really well and is very easy to clean.
Unfortunately I have a few gripes with this compared to the WMF;
Firstly, the rubber seal inside must go in the correct way. Therefore if you forget which way round it goes, you need to look for the very small text that says something like "lid side". The WMF rubber seal is reversible.
Secondly, the only way you know this is at full pressure is when steam starts to escape from the valve in the lid. On the WMF there is a coloured cylinder that raises vertically out the handle to indicate the pressure (low and high pressure points are marked). With the Tefal, it took 8 more minutes on max heat until it was fully pressurised and steam began to come out the valve. Up to this point I didn't know what was happening.
Finally, you're expected to stick your hand near the steam release valve to start to release pressure at the end of cooking. Bear in mind, the steam under pressure will be greater than 100C, this is quite an unbelievable engineering decision. It is possible that with a fairly full pot, some liquid could also be ejected too. You can also just leave the pot to cool (about 15 mins) or to carry it to the sink and run cold water on it (not ideal when pressurized and weighing around 8Kg when full). With my WMF, steam is released horizontally away from the handle and has much better modulation (e.g.) you can release steam much slower than the Tefal).
While we're talking about the release valve, do not wear any dangling necklaces while using this, as there is a slight possibility that you could hook the release handle and turn it accidentally, releasing steam (vertically into your face). If cooking with multiple pans, ensure that you do not reach over this or put your face over it while tending to other pans.
This is a nice cooker and does what it is supposed to do. The folding handles are a really nice touch, but I feel the way the steam is released has not really been engineered well enough. I'll be sticking with my WMF.