The yogurt maker Severin works fine but there is a big problem: the pots will crack one after the other, even if they are washed in warm water and is expected complete cooling before putting them in the fridge. I also just found a crack on an outgoing pot yogurt: it is cracked during the preperation yoghurt. It's amazing how bad .It shame and the manufacturer should fix it asap! Lasse redeem Severin pots I now buy pots of competition compatible with this yogurt.