The noodles are cooked just right — perfectly springy.
Tips
culture
The letter Q comes from Taiwanese Hokkien 'khiū', describing that bouncy resistance you get biting into mochi, tapioca pearls, or fish balls. It travelled from Taiwan into Mandarin food vocabulary and is now everywhere on bubble-tea menus.
register
Casual food talk only. You'll see it on menus and bubble tea ads but not in formal writing. Often doubled as Q弹 (Q tán) for the same effect.