If you grew up in a household touched by Cantonese traditions, you already know the specific sound of this remedy. It’s the low, rhythmic simmer of a heavy ceramic pot on the stove, and the sharp, unmistakable aroma of dried roots and flowers cutting through the air. It usually started with a look from Mom. Maybe you had a breakout, a sudden sore throat, or a lingering mouth ulcer after a glorious weekend of eating fried foods or late-night snacks. She would look at you, narrow her eyes, and diagnose you instantly: “ Yeet hay .” Literally translating to "hot gas" or "internal heat," yeet hay (熱氣) is that uncomfortable state of physical imbalance. And the only antidote? A steaming bowl of Liang Cha (涼茶) literally, "cooling tea." It’s dark, it’s intensely bitter, and it is a cornerstone of our cultural wellness legacy. The Ancient Roots: A 1,700-Year Legacy While it felt like a personal punishment designed by our mothers, Liang Cha actually carries the wei...