Kuhn Rikon Duromatic pressure cooker is top of the line and quite expensive. One would therefore expect top quality. It's not the case. 3 months after I bought mine, the flimsy plastic pieces that held the "valve housing" broke. It was very irritating but I continued using the pressure cooker... Until one day I realized the "indicator stem" had fallen into the boiling food I was cooking along with the "spring".I grew up with pressure cookers. My mother and aunts bought theirs in the sixties, my sisters and friends later and they are still using them. They cook good food and fast and save energy.I am absolutely appalled about the poor quality of this product and I have one recommendation for consumers: DO NOT BUY THIS PRODUCT. It's a waste of money.