Does angostura bitters stain teeth enamel?

Angostura bitters, like many dark-colored liquids, can potentially stain teeth enamel over time if consumed frequently and not properly rinsed afterward. The staining is primarily due to the natural coloring agents and tannins present in the bitters. However, occasional use in cocktails is unlikely to cause significant staining. Maintaining good oral hygiene, including regular brushing and rinsing, can help mitigate any potential staining effects.