eli5: Why do you produce so much saliva when you eat sour food?

Question

eli5: Why do you produce so much saliva when you eat sour food?

In: 2

Answer 1

Your body is trying to protect itself

You perceive acidic food as being sour. While minor acids for a short period are harmless, more intense acids or having a lot can lead to irritation or even mouth ulcers. By diluting the acid with saliva, your body is protecting itself the best it can