Signature Hakata-style tonkotsu packed with roasted garlic aroma, extra-firm straight noodles, and rich emulsion.
| Ingredient | Amount |
|---|---|
| Pork femur bones | 800g |
| Chicken carcass | 300g |
| Kombu (Rishiri) | 20g |
| Water (extraction) | 2500ml |
| Black garlic Mayu tare | 40ml |
| Extra-firm straight noodles | 120g |
| Thick chashu pork | 80g |
| Ajitama egg | 1 pc (55g) |
| Roasted nori | 2 sheets (6g) |
| Kikurage (wood ear) | 15g |
| Scallions | 12g |
Phase 1 — High-heat bone break (90 min): Blanch 12 kg pork femur at rolling boil, drain, refill with fresh water. Maintain vigorous boil to extract collagen and marrow — game registers +18% umami if foam is skimmed every 15 min. Phase 2 — Low simmer emulsion (5.5 h): Drop to gentle bubble (82°C surface). Add roasted garlic heads at hour 4; emulsion turns ivory-white. Stir bottom every 45 min to prevent scorch. Phase 3 — Strain & fat cap (30 min): Pass through triple mesh. Hold at 88°C; fat layer must stay integrated — separation below 86°C costs −12 aroma pts on delivery.
Barikata 15s boil in rolling alkaline water (pH 9.2). Lift with mesh strainer, shake wrist twice downward (≈30 cm arc) — each shake sheds ~8% surface water and raises broth adhesion to 94%. At 16s: noodle core softens (−15 umami). At 17s+: Yawarakame penalty triggers Tanaka auto-fail. At 14s: center remains chalky (−8 texture). Target window: 15.0–15.5s only.
Bowl tilt 15° left; pour 380 ml broth first (center-weighted). Noodles coil clockwise in 2 loops — center of mass stays below rim. Chashu leans on nori at 10 o'clock; ajitama at 4 o'clock. Black garlic oil (Mayu): drizzle 5 ml AFTER broth pour, BEFORE noodles land — cap seals aroma for +6 pts. Scallions scatter last within 3s of serve.
Ingredient cost ¥380 (bones ¥140, chashu ¥95, noodles ¥45, tare ¥60, toppings ¥40). Suggested price ¥1,220 → gross margin ¥840 (221%). At Shop Lv3 with 2 tonkotsu pots, expect 28–35 bowls/day during dinner rush. Price floor ¥1,100 (margin still 189%); ceiling ¥1,350 before customer satisfaction drops. Break-even: 4 bowls covers daily bone prep cost.
Tanaka Tsuyoshi (100% match): +30 pts if broth ≥86°C at ticket print. +25 pts Barikata ≤16s. +20 pts for Mayu tare + thick chashu + kikurage trio. −40 pts instant fail: soft noodles or broth <82°C. −15 pts: missing nori or corn/butter contamination. Serve within 8s of assembly for full aroma spread.
| Segment | Preference | Price Tolerance |
|---|---|---|
| Students | ★★☆☆☆ | ¥880–980 max |
| Office workers | ★★★★☆ | ¥1,100–1,220 OK |
| Tourists | ★★★★★ | ¥1,200–1,350 premium |
| Late-night drinkers | ★★★☆☆ | ¥1,000–1,100 with beer combo |
| Veteran gourmets | ★★★★★ | ¥1,220+ no ceiling |
Emergency Fix: Skim foam every 15 min during Phase 1; re-emulsify with 30s immersion blender at 88°C. Never hold below 86°C pre-serve.
Emergency Fix: Strict 15.0–15.5s boil + double wrist shake. Serve within 45s of drain — Tanaka auto-fails at 60s+.
Emergency Fix: Slice at 45° when core temp 62°C; rest 5 min before portioning. Lean on nori at 10 o'clock — gravity anchor prevents slide.
Emergency Fix: Limit Mayu to 5 ml per bowl; drizzle AFTER broth, BEFORE noodles. Stir once if held >10 min.
Ensure broth holding temperature is between 86°C and 92°C to prevent fat separation. Noodle timing must not exceed 16s.