Customarily held for 60, 66, 70, 80, 90-year milestones (
大寿), with specific dishes carrying longevity symbolism —
寿桃 (peach-shaped buns),
寿面 (one long, unbroken noodle strand), red eggs, and the character
寿 written large on the wall. For those under 60, the word is simply
生日宴 rather than
寿宴.