At Chasaengwon Tea House, the classic tea- house gets an update. Beneath a giant TV broad- casting Korean programs, sit at a small wooden table and sip one of the 21 teas. Straight from Korea, they’re touted for their health benefits: Try persimmon leaf for an immune-system boost, or jujube (Chinese date) for digestion. 3330 El Camino Real, Ste. 206; 408/246-0700.