Which substance should be used to put out a fire in pan of bacon fat?

The best substance to put out a fire in a pan of bacon fat is baking soda. Baking soda is a base, and it will react with the acids in the bacon fat to form carbon dioxide gas. This gas will smother the fire and prevent it from spreading.

Other substances that can be used to put out a grease fire include:

* Salt: Salt will absorb the heat from the fire and help to cool it down.

* Flour: Flour will also absorb the heat from the fire and help to cool it down.

* A fire extinguisher: A fire extinguisher is the most effective way to put out a fire, but it is important to use the correct type of fire extinguisher for the type of fire.

It is important to never use water to put out a grease fire. Water will cause the grease to splatter and spread the fire.