How are tonsil stones started?

Cryptic tonsils: The first thing that starts are tonsils that have deep pockets or crypts. Food, debris, and bacteria get trapped in the crypts and form the "tonsil stones.".

Mouth bacteria: Most tonsil stones aren't from food or other particulates. Tonsils have crypts or crevasses into which a mouth bacterium, actinomyces, can enter. As the bacteria proliferate they create debris that under the microscope that look like sulfur granules.