Why does my jaw tingle after drinking beer?

The tingling sensation in your jaw after drinking beer can be attributed to several factors, primarily related to the stimulation of your salivary glands and the properties of the beverage itself.

Salivary Gland Stimulation

When you consume something sour, tannic, alcoholic, or sugary, such as certain types of beer, your salivary glands, particularly the parotid gland, go into overdrive. The parotid gland is located near the jaw and ear, and its increased activity can cause a tingling or uncomfortable sensation in this area1.

Properties of Beer

Beer, especially sour or tannic varieties, can trigger this salivary response. The presence of tartaric acid, tannins, ethanol, and sometimes added sugars in beer can stimulate the parotid gland, leading to the tingling sensation you experience1.

Temporary Nature

This sensation is typically temporary and should resolve after a few sips as your salivary glands adjust to the stimulus. It is not indicative of any underlying health issue related to your jaw structure, but rather a normal response to the digestive process1.

In summary, the tingling in your jaw after drinking beer is likely due to the stimulation of your salivary glands by the sour, tannic, or alcoholic components of the beer.