Brand of pressure cooker - When you buy a new pressure cooker you should buy the pressure cookers of renowned company like reliance, prestige, hawkins etc .
ISI mark - Check the ISI mark on the pressure cooker which shown that the cooker is safe . ISI mark is compulsory for any kitchen appliance .
Rubber gasket and whistle - Check the rubber gasket and whistle of the pressure cooker are in proper condition not be damaged .
Thickness of sheets - Always choose the thick sheet pressure cooker which is very safe in use.
Steel body - Always choose the steel body cooker not go for aluminium body .