Gum and candy: Chewing gum and eating candy are two of the most common ways to stimulate saliva production. This is because the sugar in these products binds to the receptors on your tongue and sends a signal to your brain that you are eating something sweet. In response, your brain releases saliva to help you break down the food.

Sour food: Sour foods can also make your mouth water. This is because the acid in these foods irritates the lining of your mouth and causes your salivary glands to produce more saliva.

Spicy food: Spicy foods can also make your mouth water. This is because the capsaicin in these foods binds to the receptors on your tongue and sends a signal to your brain that you are eating something hot. In response, your brain releases saliva to help you cool down your mouth.