We use locally and ethically sourced 100% Arabica coffee beans. Theka Coffee Mumbai , Oshiwara, Andheri West; View reviews, menu, contact, location, and more for Theka Coffee Restaurant. Theka Coffee , #825 among Mumbai coffeehouses: 8 reviews by visitors and 6 detailed photos. Find on the map and call to book a table. FRESH! Theka Coffee uses cold brew to make all its coffees, unlike most other coffees that are made using espressos. Cold brew is made by steeping coarsely ground coffee in cold water for 16-36 hours, resulting in a coffee which is smoother, less acidic and has higher caffeine content.