Standing rest between shakes (jing zhi)

The categories this step defines

In tea, processing is not a modifier applied to a category — it is what creates the category. These are the types that exist because this step exists.

• Oolong — Deliberate bruising to initiate edge oxidation, halted partway, frequently followed by roasting.

What it is

Zuo qing, the making of oolong, is an alternation and the two halves are not equal in length. A shake lasts minutes; the standing rest that follows it lasts anything from half an hour to two hours, and there are commonly four to six such cycles across a night. During the rest the leaf lies still and thinly spread, water migrates outward from the stem into the blade that the shake has just partially dried, the ruptured margins brown, and the aroma of the whole bed moves — grassy at first, then green-floral, then the orchid or gardenia note the maker is waiting for. The maker's decision is not when to shake but when to stop resting, and it is taken by putting a face into the bed and smelling it. This is the reason oolong production runs overnight and the reason it cannot be scheduled: the rests lengthen as the night goes on and as the leaf dries, and a batch that is behind stays behind.

Also transliterated as: jing zhi, jingzhi, liang qing.

What it does to the leaf

Holds bruised leaf undisturbed and thinly spread so that moisture redistributes from stem to blade and enzymatic browning proceeds at the ruptured margins, while the unbroken centre of the leaf continues to change on its own account.

What it does to the cup

This is where oolong aroma is built. Short rests give a green, sharp, under-developed cup; long ones push towards honeyed and fruity; the balance between shake vigour and rest length is the difference between one house style and another.

Variants that matter

Ways this step is carried out that produce genuinely different results, rather than regional names for the same thing.

Thin-spread rest

Leaf laid out shallow on bamboo trays. Cooler, slower, and the standard for lightly oxidised rolled oolong where a clean floral note is the target.

Air-conditioned rest rooms

Now general in Taiwan and Anxi. Holding the room cool lengthens the usable window and makes a night's work repeatable across a season, at some cost to the variation that seasoned makers value.

Rest before the first shake

An initial standing period straight after the indoor wither, before any agitation. Often omitted in write-ups, and it is where the leaf equalises after coming in from the sun.

Other steps at the Oxidation stage

• Anaerobic holding (sealed vessel, air displaced) — The oxidation slot, run with the air taken out. Withered leaf is sealed into a vessel from which oxygen has been displaced and held there for hours, and the schedule of holds and airings is the manufacture.
• Controlled-environment oxidation — The room and the equipment in which oxidation is actually run — cool, saturated, ventilated, and judged by nose rather than clock.
• Heaped rest before fixation (dui qing) — A short heaping of the leaf at the end of the shaking cycles, used to push the last of the oxidation quickly before the heat goes on.
• Oxidation — The enzymatic browning of ruptured leaf that turns green tea material into black tea material.

Guides covering this step

• One fresh leaf, and every decision that follows it — Follow a single plucked shoot from the basket and take the forks one at a time. Each answer closes some doors permanently and opens others, and by the fifth answer the tea has a name.
• The steps between the steps — Spreading, cooling, resting, turning. Four operations that occupy most of the elapsed time in tea manufacture, have names in every producing language, and are compressed in English writing into the word “then”.