I had a pressure cooker for years worked a treat till the seal went and I couldn’t replace it as it was so old plus it was aluminium, so I bought a new stainless steel one but the pressure release cap wasn’t very good , gave that away and bought a different make still not as good as the original ones, I have looked at the one you mention and it looks good , you can now buy different sizes the small one looks great for the van , I have been seriously considering one . You first and let me know. Maybe you would have to release pressure outside of van . But they certainly cut down cooking times especially winter stews , and does lovely ham and peas, I think I’ve just talked myself into buying one.:tongue: