Marun x Werm Batch Roaster is a small cafe near Naradhiwas intersection in Bangkok's financial district, serving coffee, tea, and matcha drinks. It offers beans from Thailand, Brazil, Colombia, and other countries, along with hojicha, and frequently adds new items and unusual combinations. Customers can choose their specialty beans when ordering coffee. With almost no seating, it is takeout-focused, and visitors stay only as long as it takes to wait for their coffee.