Its giving some small outburst of air so the pressure is never built up for a complete whistle. so the very fund of cooking anything with certain number of whistles does not work in this cooker.
if you cooking rice u need to spend extra time cleaning the wall in front because the complete starch is gonna come out is small burst in keep falling on the wall.
Result of this you need to always put extra water while cooking rice.
I spend so much time it has gone to shop three times with the same complaint that the steam leaks from safety valve no pressure is created handle is not good it burns your fignres if they just slip slightly on its side surface.
its price in the market is very high compared to other pressure cooker available in the market and it is not more better looking and I am not feel more comfortable with this book and this pressure cooker you have not more feature so I dont like it is totally of money and time on this pressure cooker.