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Part 3 : The Essential Differences Between Xiaozhong Hongcha and Qingcha
Today, tea categories seem very clear: green tea, black tea, oolong tea. But historical tea making did not follow these modern labels. When older texts describe “half-green half-red” tea, they are often describing a production accident — not a finished tea type.
This is where many misunderstandings begin. A phrase appears in a historical text, and later readers recognize something familiar. The colour seems to resemble qingcha (oolong tea) — leaves partly green, edges turning red. The phrase often quoted in this context is : ban qing ban hong (half green, half red).
At first glance, the description sounds close to the appearance of modern qingcha leaves. But appearance alone can be misleading. Tea leaves change colour for many reasons: heat, oxidation, handling during processing. Not all of these processes belong to the same tea category.
To understand the difference, it helps to look at two techniques that are often confused in historical discussions — the production of xiaozhong hongcha (lapsang souchong black tea) and the processing of qingcha (oolong tea). They produce leaves that sometimes look similar, but the logic behind them is quite different.
Xiaozhong Hongcha: Full Oxidation and Accidental Colour Variation
In xiaozhong hongcha production, oxidation is allowed to proceed almost fully. Fresh leaves are first withered, then rolled to initiate oxidation. After that, the leaves are heated and roasted.
By the time the process is finished, the leaves have turned a uniform reddish-brown. That is the intended result.
Yet tea processing is rarely perfect. If heating happens too early, or oxidation develops unevenly, the leaves may show mixed colours. Some areas remain green; other parts have already turned red. The leaves appear, quite literally, ban qing ban hong.
In black tea production, this is usually considered a flaw. It means the oxidation process did not unfold evenly. The colour pattern is accidental, not intentional.
Qingcha: Controlled Oxidation and Intentional Colour
The processing of qingcha, which later became known as oolong tea, follows a different logic. Here, oxidation is not allowed to run freely. It is carefully controlled.
Tea makers spread the leaves to wither, then gently shake or toss them in bamboo trays. The leaves bruise slightly along their edges. After each movement, the leaves are left to rest. During these pauses, oxidation begins along the damaged edges while the centre remains greener. This process may be repeated several times.
This method is known as zuoqing (leaf bruising and controlled oxidation). The goal is balance — not full oxidation, not complete freshness, but something held between the two.
The visual result becomes distinctive. The centre of the leaf remains green; the edges turn red. Traditional descriptions sometimes summarize this appearance as san hong qi qing (three parts red, seven parts green).
The pattern resembles ban qing ban hong, but the cause is entirely different. In qingcha, the colour pattern is intentional. In black tea production, the same appearance may simply reflect uneven oxidation. The leaves look similar, but the process behind them is not.
Why This Difference Matters
This distinction is important when interpreting historical texts. A document describing leaves that appear partly green and partly red does not necessarily describe qingcha processing. It may refer to imperfect hongcha production or to an intermediate stage during roasting.
Without a clear description of the handling technique — the repeated shaking and resting of the leaves — the text alone cannot determine which process was involved.
Many debates about tea history begin with this kind of ambiguity. A description of colour becomes a description of method. Once that happens, the text begins to carry a meaning it may never have intended.
Understanding the difference between xiaozhong hongcha and qingcha helps clarify several passages in early tea writings. What looks like evidence of qingcha may simply be a record of black tea production.
The phrase itself is not enough. To understand it properly, the context must also be considered.
