Which of the following is not a function of the mouth?

The mouth is said to be the beginning of the digestion process. The digestive enzymes in the mouth help in the partial digestion of starch, initiating digestion. Chewing food is possible with the jaws, which are the movable muscles in the upper and lower parts of the mouth. This movement is responsible for mixing saliva with the food particles. The tongue helps in identifying the taste of the food. Sweet, sour, salty, and bitter are the primary tastes that the tongue can recognise. Cutting food into smaller pieces is the function of the tooth present in the oral (mouth) cavity.