Simmer co-founder Ryan McKenzie owns both the coffee bar and the Patent Pending speakeasy behind it. The landlords allowed the cocktail bar in the back only if a café opened in the front. An artist re-created Tesla's patents for the four cocktail categories.
Til Death Brooklyn roasts the coffee. In 2022 the shop poured one single origin on espresso, another on batch brew, and two coffees on pour-over.
A curved counter faced in vertical timber slats, topped with veined marble, stands against exposed brick. Boxed bags of beans sit on shelves beside the order board, and framed patent-style drawings hang on the walls.
