As a subject matter expert in chemistry with a focus on the properties of substances, I can provide you with an informed answer to your question.

Salt, in its most common form known as sodium chloride (NaCl), is not combustible under normal conditions. It does not catch fire because it lacks the necessary components to support combustion. Combustion requires a fuel, an oxidizer, and a source of heat. While salt can sometimes be used as a catalyst in certain chemical reactions, it does not burn on its own.

However, there are some special salts that can react with other substances under specific conditions to produce a flame or an explosion. For example, certain perchlorates and other reactive salts can be explosive when mixed with fuel and ignited. But this is not typical of table salt or regular salt used for seasoning.

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Salt doesn't really burn (though if you can get it to melt you can get a nice orange flame from the sodium burning off), and if you put enough of it on the fire at once it could smother it. ... Mostly because the salt doesn't burn or atomize, so it won't rise up to hit the meat.read more >>