Hundred Proof, situated at 4130 Park Boulevard in San Diego's University Heights neighborhood, was launched by the team behind Trust. It opened in 2017, taking over the space previously occupied by S&M Sausage & Meat. The establishment focused on cocktails and food. Hundred Proof became known for its creative cocktail program. Hundred Proof ultimately ceased operations in 2019.
Source: Eater San Diego, Hundred Proof opening coverage (2017); Eater San Diego, Hundred Proof closure coverage (2019)