Tonkotsu Original

The reference bowl. Eighteen hours of pork bone, stopped at its peak.

Pork bone, 18-hourThe benchmarkNo heat
Tonkotsu Original as a sealed freeze-dried puck: noodle lattice and toppings held under frost.
Frozen · 118 g
Tonkotsu Original ninety seconds after the pour: steaming broth with its full toppings.
Bloomed · 90 s

How this one is built

Our benchmark tonkotsu: femur and neck bone rolled at a hard boil for 18 hours until the collagen emulsifies to 9.1% solids, seasoned with a shio tare aged three weeks. We freeze the finished bowl — noodles, chashu, ajitama, kikurage, negi — at −41 °C and sublimate for 22 hours. What you pour water on is the bowl itself, paused.

In the bowl

  • Chashu (pork belly, 63 °C, 8 h)
  • Ajitama (6.5-min egg, 24-h marinade)
  • Kikurage
  • Negi
  • Nori

Tare & noodle

Shio tare — sea salt, konbu, dried scallop, 21-day rest

28% hydration straight noodle, 1.3 mm

Allergens

Wheat, soy. See toppings for egg, pork, chicken, fish, sesame, dairy. Shared equipment.

Specification

Nutrition · per bowl, rebloomed
Energy540 kcal
Protein28 g
Fat22 g
Carbohydrate58 g
Sodium1490 mg
Preparation & handling
Net weight118 g
Water420 ml at 100 °C
Bloom90 s, lid on
Above 2,000 m+20–30 s, stir at end
StorageBelow 27 °C, no freezer

Next to it on the shelf

Same method, different register

All eight bowls