Recipe hydration

Hokkaido Milk Bread (Sourdough) — Hydration Guide

Target 72%. Workable range 6878%.

Why this hydration for Hokkaido Milk Bread (Sourdough)?

Hokkaido milk bread uses the tangzhong technique — a pre-cooked flour/water paste (1:5 ratio, heated to 65°C) mixed into the main dough. This gelatinizes some starches, enabling extra moisture retention and an incredibly soft, pillowy crumb that stays fresh for days. Add milk (15% flour weight), butter (10%), and mild sugar (8%) for the signature Asian-bakery character.

Flour mix: 100% bread flour.

Technique at 72%

Make tangzhong: 25g bread flour + 125g water, heat in pan stirring to 65°C until thick paste. Cool. Combine tangzhong with other dough ingredients + levain. Knead 10 min. 2.5h bulk. Divide into 3 pieces, roll each into rectangle, fold thirds, roll into coil. Place coils side-by-side in oiled loaf pan. Proof 3h until risen 1 inch above pan. Bake 350°F for 30-35 min until golden and internal 190°F.

Calculator pre-set to 72%

Flour to add
450 g
Water to add
310 g
Salt
10 g
Levain @ 100%
100 g
Total dough
870 g
Effective hydration
72%
How the math works

Total water = flour × hydration %. Your levain contributes 50 g flour + 50 g water — both count toward the totals. You add only the remainder as fresh flour and water.

Salt % is computed on total flour weight, not final-dough flour.

Open 70% hydration guide →

Source: Asian bakery tradition; adapted for sourdough per King Arthur