Vietnamese cooking uses multiple noodle types — rice vermicelli (bún), flat rice noodles (bánh phở), glass noodles (miến), and wheat noodles in different applications. The preparation technique differs by noodle type and application: some require soaking only; others boiling; others a combination. Applying the wrong technique produces overcooked, gluey noodles that ruin an otherwise correct dish.
Dried rice vermicelli (bún) soaked in cold water for 30 minutes until pliable, then briefly (30–60 seconds) blanched in boiling water and immediately rinsed under cold water to stop cooking. The soak hydrates; the brief boil activates the starch gelatinisation; the cold rinse stops it.
- Soaking in cold water first prevents the noodles from overcooking in the boiling water — they are already pliable and need only seconds of heat - Rinse under cold water immediately after boiling — residual heat continues cooking the noodles after removal from water - Toss with a small amount of oil after rinsing to prevent clumping - Glass noodles (miến): soak in warm water only, no boiling required — they are fully hydrated by soaking alone - Bánh phở (flat rice noodles): soak only if dried; fresh noodles need no preparation beyond separating
VIETNAMESE FOOD ANY DAY — Technique Entries VN-01 through VN-20