Food & Nutrition · Tea

Reading black-tea grades without turning them into a league table

Prepared by Good & Steady · Sources checked 16 October 2026

A string of letters on a tea packet can look like a score. It is usually more helpful to read it as a description of the manufactured leaf. Grade terminology can tell you about size and form, and sometimes about visible tips or the appearance expected within a particular system. It cannot tell you everything that matters about the drink.

The Sri Lanka Tea Board explicitly distinguishes grading by particle size from quality in itself.[1] That is a useful starting point: decode the label, then decide whether the tea fits the cup you want.

Granular tea coming from a factory production line — CTC tea at a factory in Kerala, India, in April 2016; process and location identified by the photographer. The image does not establish a commercial grade or document an entire manufacturing sequence.
CTC tea now comes off the line (28760903325) — shankar s.. CC BY 2.0. Proportional resizing and WebP conversion; no crop or retouching. The original licence also applies to these derivatives.

Start with the broad family

The Indian Tea Association groups orthodox black-tea grades under whole leaf, broken, fannings and dust.[2] These are categories of finished material. They are not four rungs on a universal ladder of enjoyment.

“Whole leaf” should not make you assume that every piece is a pristine leaf exactly as picked. Equally, “broken” does not identify a damaged retail product: it can be the intended manufactured and sorted form. The word “dust” has a defined place in tea grading. Read it in that trade context, rather than as a statement about household dirt.

Before interpreting a longer code, establish its family and the system being used. A seller who supplies an abbreviation without its manufacturing context has given you only part of the description.

A small vocabulary that does useful work

For Indian orthodox tea, the association’s list gives these expansions:[2]

OP: Orange Pekoe, in the whole-leaf group.
FOP: Flowery Orange Pekoe, also in that group.
BOP: Broken Orange Pekoe, in the broken group.
FBOP: Flowery Broken Orange Pekoe, also broken.
BOPF: Broken Orange Pekoe Fannings, in the fannings group.

Treat “Orange Pekoe” as grade language here. It is not a declaration that the tea contains orange or tastes of citrus. For added flavour, consult the ingredients and product description. There is no need to attach a speculative story about the name’s historical origin to make that practical distinction.

Longer abbreviations are worth asking about, but memorising the longest possible string is not a substitute for understanding a particular product. If a listing treats additional letters as proof of superiority, ask what observable feature each part denotes in that seller’s grading system.

CTC is a method, with grades of its own

CTC describes a manufacturing approach, rather than a single particle size. India’s published CTC classification separately lists broken-leaf, fanning and dust grades. Examples include BOPL, Broken Orange Pekoe Large; BP, Broken Pekoe; PF, Pekoe Fannings; and PD, Pekoe Dust.[3]

Notice that BOPF also appears in this CTC list.[3] The letters alone therefore do not establish orthodox manufacture. This is a good reason to read the entire product description rather than treating one familiar abbreviation as sufficient identification.

A useful question is: “Is this orthodox or CTC, and what does this grade mean for this tea?” A less useful question is: “Is CTC a lower grade than BOP?” The latter compares a processing approach with a label that can occur within a grading system.

Read each region on its own terms

Sri Lanka’s product specification provides detailed descriptions beyond a simple size ladder. OP1 is described through its long, wiry, twisted appearance; OP is less wiry. BOPF is smaller than BOP, while D1 is smaller again. Separate CTC descriptions include granular BP1 and PF1.[4]

These examples show why a number is not a portable mark out of ten. An OP1 description belongs to its stated framework; it does not establish that every tea bearing a “1” outranks every tea without one. The same caution applies when moving between countries or comparing a merchant’s house terminology with a national specification.

The safest interpretation is the narrowest supported one. If the seller gives only “BOP”, you know less than if they identify the region, manufacturer, process, harvest and applicable grade description. Do not fill those gaps with assumptions.

A five-minute packet-reading exercise

Take one packet or online listing and make four short entries:

Identity: copy the producer, region and harvest information actually supplied. Leave missing details blank.
Manufacture: record orthodox, CTC or unspecified. Do not infer it from the packaging.
Grade: copy the code exactly, including spaces, suffixes and numbers. Find the explanation used for that origin or ask the seller.
Purpose: write how you intend to drink it: plain, with milk, quickly at breakfast, or in a more attentive tasting.

Now separate a buying question from a brewing question. “What does this suffix mean?” is for the seller. “Would I prefer a gentler infusion?” is something you can investigate with the tea itself. Begin with directions for that particular sample, record your quantities and time, and change one variable on the next attempt. A grade code alone cannot supply a complete recipe.

Keep your eventual cup note beside the decoded label. Over time, this turns an intimidating vocabulary into useful personal evidence. The goal is not to collect the most impressive letters. It is to recognise the descriptions that help you find a tea you want to drink again.

Sources

[1] Sri Lanka Tea Board, Manufacturing, grading section.

[2] Indian Tea Association, Orthodox tea grades.

[3] Indian Tea Association, Standardisation of grades of CTC teas, presenting Tea Board classifications effective from 1 March 2011.

[4] Sri Lanka Tea Board, Ceylon tea product specification, section 3.1.2.