This kind of thing is called Ming Liezi, also called pearl fruit, and it is the mature fruit of a plant called Basil (also known as spearmint and coriander). It's the size of sesame. Soaking in boiling water will quickly absorb water and expand. It can promote intestinal peristalsis and help digestion after ingestion. Ming Li Ezi is widely used in yellow rice wine, fruit juice and Ming Li Ezi because of its wonderful characteristics and special pharmacological effects.
Granular suspended drinks, bubble tea, shaved ice and yogurt (dairy products) are widely used.