R&B Tea San Carlos in San Carlos, San Diego serves Taiwanese-recipe bubble tea at 8872 Navajo Road, Unit A, bringing a global franchise with over 1,500 locations to the 92119 ZIP. The brand traces to a 2006 founding by Bruce, a Taiwanese IT worker in Suzhou, China, who saw a market gap for quality milk tea made from premium tea leaves sourced directly from Taiwan. Ingredients ship from three countries: tea leaves from Taiwan, matcha from Japan, and fresh kumquat juice from Vietnam, and the San Carlos morning beverage corridor that includes Cowles Mountain Coffee on Lake Murray Boulevard splits the market between espresso drinkers and boba customers. Signature orders include the Hokkaido milk tea, a brown-rice milk tea with a toasted-grain undertone, a taro pearl milk tea, and a chocolate Oreo stormy that blends cookie crumble into the base. Each drink is assembled from fresh fruit rather than pre-made concentrate mixes, a sourcing standard the shop maintains across the full menu. Customization runs through boba size, fruit jelly toppings, and sweetness levels on a percentage scale, and non-dairy creamer options stand in for plant milk across the milk-tea lineup. Anime-themed wall art and playful decor give the interior a visual identity that doubles as a photo backdrop for the social-media traffic that drives boba discovery among college-age customers. Navajo Road's San Carlos retail strip runs between Lake Murray Boulevard and the eastern edge of the neighborhood, and the dinner-and-dessert pairing with Del Cerro Pizza & Beer in neighboring Del Cerro captures the family-night-out circuit. A gender-neutral restroom, outdoor seating, and Wi-Fi make the shop functional for both quick boba runs and longer sit-down study sessions in a part of San Diego underserved by independent tea houses.