"The quality of Catalyst’s food, coffee, and service means that it can feel reductive to simply call it a cafe. But that’s what it is. A better way to put it is that Alex Gkikas and his team are pushing the boundaries of what you should expect from a cafe and coffee roasters in their stylish corner spot in Holborn. Not only does Catalyst roast and grind its own beans but it has also created its own groundbreaking condiment in the form of their coffee sriracha, as well serving a superb Greek-leaning daytime menu, plus bar snacks and drinks on Friday evenings." - heidi lauth beasley, jake missing