Tea Grading - What does OP and ftgfop mean?

Tea leaf grading is the process of evaluating products based on the quality and condition of the tea leaves themselves.

The highest grades for Western and South Asian teas are referred to as "orange pekoe", and the lowest as "fannings" or "dust". Pekoe tea grades are classified into various qualities, each determined by how many of the adjacent young leaves (two, one, or none) were picked along with the leaf buds. Top-quality pekoe grades consist of only the leaf buds.

Whole leaf grades

Grade	Description
OP	Orange Pekoe Main grade, consisting of long wiry leaf without tips.
OP1	More delicate than OP; long, wiry leaf with a light liquor.
OPA	Bolder than OP; long leaf tea which ranges from tightly wound to almost open.
OPS	Orange Pekoe Superior Primarily from Indonesia; similar to OP.
FOP	Flowery Orange Pekoe High-quality tea with a long leaf and few tips, considered the second grade in Assam, Dooars, and Bangladesh teas, but the first grade in China.
FOP1	Limited to only the highest quality leaves in the FOP classification.
GFOP	Golden Flowery Orange Pekoe Higher proportion of tip than FOP. Top grade in the Milima and Marinyn regions, but uncommon in Assam and Darjeeling.
TGFOP	Tippy Golden Flowery Orange Pekoe The highest proportion of tip, and the main grade in Darjeeling and Assam.
TGFOP1	Limited to only the highest quality leaves in the TGFOP classification.
FTGFOP^[a]	Finest Tippy Golden Flowery Orange Pekoe Highest quality grade.
FTGFOP1 STGFOP SFTGFOP	Special Finest Tippy Golden Flowery Orange Pekoe Limited to only the highest quality leaves in the FTGFOP classification.

Broken leaf grades

Grade	Description
BT	Broken Tea Usually a black, open, fleshy leaf that is very bulky. This classification is used in Sumatra, Ceylon (Sri Lanka), and some parts of Southern India.
BP	Broken Pekoe The most common broken pekoe grade; from Indonesia, Ceylon (Sri Lanka), Assam and Southern India.
BPS	Broken Pekoe Souchong Term for broken pekoe in the Assam and Darjeeling regions.
FP	Flowery Pekoe High-quality pekoe. Usually coarser with a fleshier, broken leaf. Produced in Ceylon (Sri Lanka) and Southern India, as well as in some parts of Kenya.
BOP	Broken Orange Pekoe Main broken grade. Prevalent in Assam, Ceylon (Sri Lanka), Southern India, Java, and China.
FBOP	Flowery Broken Orange Pekoe Coarser and broken with some tips. From Assam, Ceylon (Sri Lanka), Indonesia, China, and Bangladesh. In South America, coarser, black broken.
FBOPF	Flowery Broken Orange Pekoe Fannings The finest broken orange pekoe, with a higher proportion of tips; mainly from Ceylon's "low districts".
GBOP	Golden Broken Orange Pekoe Second grade tea with uneven leaves and few tips.
GFBOP1	Golden Flowery Broken Orange Pekoe 1 As above, but with only the highest quality leaves in the GFBOP classification.
TGFBOP1	Tippy Golden Flowery Broken Orange Pekoe 1 High-quality leaves with a high proportion of tips; finest broken First Grade Leaves in Darjeeling and some parts of Assam.