Hojicha roasting vs Chinese charcoal roasting
Two roasts with opposite intentions. The Japanese roast is short, hot and transformative: it replaces the tea’s aromatic profile in minutes. The Chinese charcoal roast is long, low and cumulative, applied in repeated sessions separated by weeks of rest, and it develops what is already there.
processing method
What is being compared
Point by point
| Aspect | Hojicha roasting | Charcoal roasting |
|---|---|---|
| Duration | Minutes. | Hours per session, repeated over months. |
| Temperature | High. | Low and even, from radiant charcoal heat. |
| Effect on the existing profile | Replaces it. The green tea character is gone. | Develops it. The cultivar remains identifiable underneath. |
| Resting between sessions | None; it is a single operation. | Essential — weeks between firings, and months before the tea is judged. |
| Reversibility | None. A hojicha cannot be turned back into sencha. | None either, but the roast can be built up gradually and stopped. |
| What the material is | Finished green tea, often bancha or stem. | Finished oolong, usually Wuyi or Anxi. |
The short answer
Both are called roasting and only one of them is a flavour adjustment; the other is a category change. That distinction explains why a heavily roasted oolong still tastes of its cultivar and a hojicha tastes almost entirely of the roast, and it is a difference of time far more than of temperature.
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