Angostura bitters are a type of aromatic bitters, originally created in the town of Angostura, Venezuela. The recipe is a closely guarded secret, known only to the CEO and three other executives of the company. It is used in many cocktails, as well as being sold as a non-alcoholic beverage.
Tesco is a large international grocery store chain, headquartered in the UK. They sell a wide variety of food and household items, including bitters. Angostura bitters are not currently listed on Tesco’s website, however, this does not mean that they do not sell them in their stores.
To find out if Tesco sells Angostura bitters, your best bet would be to contact customer service or visit your local store. While Tesco may not currently sell Angostura bitters online, they may have them in stock at their physical locations.