1, tea leaves will produce bubbles when cooked at high temperature, and these bubbles will make a sound when they rise and burst.
2. The heating mode of the health pot is direct heating, which is different from the traditional way of boiling water. The heating speed is faster, which makes the water boil quickly in a short time and makes Pu 'er tea purr in the health pot.
3. The year and quality of Pu 'er tea will also affect the sound during brewing. Some old tea or high-quality tea leaves are more likely to produce bubbles and sounds when boiling water.