Tea Education
Tea Grades Explained: What Those Letters Actually Mean
OP, FOP, TGFOP, BOP — tea grading looks like alphabet soup. Here is what the letters mean and why grade isn't the same as quality.
Key takeaways
- Grading describes leaf size and appearance, not flavor or overall quality.
- Whole-leaf grades (OP, FOP) generally brew more slowly and re-steep better than broken grades.
- CTC tea is made for fast, strong infusions in tea bags, not for sipping loose.
Where tea grading comes from
Grading systems were developed in the 19th century for black tea auctions in India and Sri Lanka, mainly so buyers could sort leaf by size without tasting every lot. The letters describe the leaf particle, not the cup quality.
Green, white and oolong teas use their own naming conventions instead, often based on the specific cultivar, picking date or garden rather than a standardized letter code.
Decoding the common letters
Most abbreviations build on a small set of terms. Once you know them, a label like 'TGFOP' stops looking cryptic.
- OP (Orange Pekoe): whole leaf, no relation to orange flavor or pekoe as a taste
- FOP (Flowery Orange Pekoe): whole leaf including the tip, or leaf bud
- TGFOP (Tippy Golden Flowery Orange Pekoe): a high proportion of golden tips
- BOP (Broken Orange Pekoe): broken leaf, brews faster and stronger
- Fannings and dust: very small particles used mainly in tea bags
Grade isn't a quality score
A perfectly graded FOP can still be a mediocre tea if the bush was over-fertilized or the leaf was picked at the wrong time. Grade only tells you what the leaf looks like and roughly how it will behave in the pot.
Some excellent teas, especially Chinese green and Japanese teas, don't use this letter system at all, which is why you won't see 'OP' on a bag of sencha.
What this means when you're shopping
Use grade as a rough guide to brewing behavior: whole leaf needs a bit longer to open and re-steeps well, while broken leaf and fannings brew fast and are usually meant for a single, quick cup.
Judge quality by trusted sellers, harvest date, and your own tasting notes rather than the grade abbreviation alone.
Comparison table
| Grade | Leaf type | Brewing style |
|---|---|---|
| OP / FOP | Whole leaf | Slower steep, re-steeps well |
| TGFOP | Whole leaf with tips | Slower steep, delicate |
| BOP | Broken leaf | Faster, stronger cup |
| Fannings | Small particles | Fast, single steep |
| Dust | Fine particles | Very fast, used in bags |
Frequently asked questions
- Does 'Orange Pekoe' mean the tea tastes like oranges?
- No. The origin of the term is debated, but it has nothing to do with orange flavoring — it is simply a leaf-size classification for black tea.
- Is whole leaf always better than broken leaf?
- Not automatically, but whole leaf generally preserves more aroma and re-steeps better, which is why most specialty loose-leaf tea favors it.
- Why don't green teas use these grades?
- The OP-style system was built around black tea processing in South Asia. Green and oolong tea traditions developed their own naming, usually tied to cultivar, region or picking style.
About the author
Written by the Leaf & Steep editorial team. We brew, weigh and re-test everything we publish at home with ordinary kitchen equipment — no lab, no sponsorships influencing the verdict. How we test.
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