Why can't you cook in open vessels at hills?

Answer 1

At sea level normal atmospheric pressure is about 14psi (1.o3 kg/sqcm) and water boils at approximately at 100 degrees centigrade ,hence normal cooking of dhals(pulses) can be done easily. But as you go high over the mountains, the atmoshperic pressure comes down and water boils at a lower temperature. Hence while cooking in open vessels on hills/mountains due to the low atmospheric pressure and resulting low boiling point cooking will be difficult. So we should use pressure cooker or vessel with a lid (pressure inside will increase and results in increase of boiling point)