CTC

Processing Method

Photo: Marek Ruczaj / Pexels. Shared with Dust — both describe small, graded black tea particles, seen here on the same spoon.

CTC stands for “crush, tear, curl,” a mechanical processing method that turns black tea leaf into small, tightly rolled pellets rather than leaving it as whole or broken leaf. Developed for large-scale production, it’s built for speed and consistency rather than the more delicate handling whole-leaf tea gets.

After withering, the leaf is fed through rollers with sharp teeth that crush, tear, and curl it into small round granules in one mechanized pass, instead of the slower hand or machine rolling used for whole-leaf teas. That crushing ruptures far more of the leaf’s cell structure than gentler processing does, which speeds up oxidation and produces a bolder, more brisk, more astringent tea once it’s dried.

Because the leaf is broken down so thoroughly, CTC tea also has more surface area exposed to water than whole leaf, so it steeps fast and strong. That’s exactly why it became the standard for tea bags and for chai: CTC tea holds up well to milk and sugar without getting lost, and it brews quickly enough for high-volume production.

Where CTC Shows Up

CTC-processed tea is common in Assam, Kenya, and other high-volume black tea regions, and it’s the base most people are actually drinking in a standard bagged black tea or in a spiced chai — masala chai in particular relies on a strong, milk-friendly black tea base, which CTC processing is built to deliver.