How to make people cry when the gas stove is turned on?

Gas stoves are on and don't burn, which generally won't make people cry. Gases are dangerous if they are not burned. If it is gas, it will be poisoned. Gas itself is tasteless. Liquefied petroleum gas and natural gas are generally non-toxic and tasteless, but they are both dangerous and combustible. When it does not burn, it generally does not make people cry, but this combustible gas is often mixed with other components with special odor as a warning reminder of air leakage (such as adding smelly n-heptane, etc.). ).

When the valve of the gas stove is not properly adjusted and the oxygen is insufficient, the smoke containing a large number of carbon molecules will be formed, which will not only make the bottom of the pot black, but also make the eyes uncomfortable. Therefore, it is necessary to adjust the valve to make the flame return to normal and become a neutral flame, so that black smoke will not be emitted.