it's pearls, and the golden brick milk tea is bubble tea. Bubble tea, also known as Boba milk tea, or Zhennai for short, is a kind of tea beverage spread in Taiwan Province, China. After adding rice balls to milk tea, it becomes bubble tea.

Because of its special taste, it is quite popular with teenagers. Milk tea has the dual nutrition of milk and tea, and is one of the home-cooked foods, which is popular all over the world. In bubble tea, generally, powder balls with larger particles are used, and the diameter after cooking is about 7 mm or more. Otherwise, if the diameter is too small, it is easy to swallow pearls, and it is not convenient to swallow and chew. But most merchants in bubble tea still offer small round pearls.