Recently I bought this 8ltrs prestige stainless steel pressure cooker.My requirement was to prepare food for six member family. This cooker I found very useful. I wanted pure stainless steel cooker body especially inner portion as in many cookers inner portion is made of aluminium but they dont mention it in cooker description. I am very happy to see this prestige brand is fully made up of stainless steel. It is ISO marked. Now a days I cook biryani for 6/7 people.It turns fantastic.Thus cooker has thick bottom so it doesnt get burnt easily. Main point is it has huge capacity.I cook for entire family even for guests that too in less time. I would recommend this cooker for joint families