7542, 8582, 7572: The Stories Behind Classic Pu'er Recipe Numbers

In the world of pu'er, a few four-digit numbers are known to nearly everyone: 7542, 8582, 7572. They aren't years or prices but recipe numbers (maihao), a tea factory's blend codes. Passed down since the 1970s, these numbers have become a shared language in the pu'er world.

How to Read a Recipe Number

Recipe numbers were first used on export tea to make ordering easier. The commonly cited way to read them is:

The most important point: a recipe number is a "recipe," not a "production year." The same recipe number can be produced year after year; a 7542 made in 2023 and a 7542 made in the 1990s carry the same recipe code. The actual year of production is shown by the production date or batch number on the package.

There are exceptions to these rules. For example, the ripe cake with recipe number 7262 is generally believed to have first been trial-produced in the 1990s, so its first two digits, "72," don't mean 1972. Recipe numbers are a great clue, but there's no need to take every digit as an ironclad rule.

A Few Classic Recipes You'll Often Hear About

7542: The Benchmark for Raw Tea

A 1975 recipe based mainly on grade 4 material, from Menghai Tea Factory. 7542 blends material of different grades from different tea regions, giving a balanced flavor, full aroma, and good aging potential. Many tea lovers see it as the "measuring stick" for raw (sheng) pu'er. Researchers have even stored a single batch of 7542 for years and analyzed changes in its composition year by year, which shows how representative it is in the pu'er world.

8582: The Strength of Coarse Material

A 1985 recipe based mainly on coarser grade 8 material. With large leaves and plenty of stems, it has a thick, solid flavor and strong cha qi, and collectors value how it changes with age. From the 1980s on, this recipe was closely tied to custom orders from Hong Kong tea merchants, and it is still a classic in the eyes of many longtime tea drinkers.

7572: The Classic Ripe Tea

A 1975 recipe based mainly on grade 7 material, a ripe (shou) cake from Menghai Tea Factory. Mellow, sweet, and smooth, and affordably priced, many people regard it as the "entry-level standard" for ripe pu'er and compare other ripe teas against it.

8592: A Heavily Fermented Ripe Cake

Also a 1985 recipe, this ripe tea is based mainly on grade 9 material, with heavier fermentation, a dark liquor, and a thick mouthfeel.

The Wisdom of Blending

Most classic recipe numbers are blends: material from different tea regions, grades, and seasons combined in set proportions. The goal of blending isn't to cut costs but to keep each year's product consistent in style and more balanced in flavor. Single-origin tea from one mountain has a vivid personality; a blend is more like an ensemble piece, and each has its own appeal. For a discussion of blends versus single-origin tea, read Menghai and Lao Banzhang.

Things to Think About When You See a Recipe Number

1. Which factory's recipe is it: Look at the 4th digit.
2. Is it raw or ripe: Within the same factory, raw and ripe recipes differ, and the package usually says which.
3. What year was it produced: Look at the production date or batch number; don't mistake the recipe number for the year.
4. Where has it been stored: The same recipe under different storage conditions can taste very different.

For the other information on the package, read How to Read Pu'er Packaging: Cotton Paper, Neifei, Neipiao, and Recipe Numbers.

Raw Tea Recipes and Ripe Tea Recipes

Menghai's classic recipe numbers include both raw and ripe teas:

Read by the "year + grade + factory" rule, most recipe numbers make sense; exceptions like 7262 remind us that recipe numbers are only a reference.

Same Recipe Number, Different Years

Because a recipe number is a recipe, the same 7542 has been produced in the 1990s, 2000s, and 2010s. Raw material sources, tea garden conditions, and processing details shift over the decades, and each has its own storage history, so 7542 from different years doesn't taste the same. Collectors often gather different years of the same recipe number to compare side by side, a pleasure unique to pu'er.

Recipe Numbers and Batch Numbers

In recent years, tea factories often add a batch number after the recipe number, for example the last two digits of the year plus that year's batch sequence, so different batches of the same recipe can be told apart. Once you can read this number, you'll know which year and which batch the cake in your hands came from.

How Beginners Can Use Recipe Numbers

• To get to know "standard raw tea," find a cake of 7542 to use as your measuring stick;
• To get to know "standard ripe tea," 7572 is many people's starting choice;
• After drinking them, compare with single-origin mountain teas, and the difference between blends and single-origin tea becomes much clearer.

FAQ

Was 7542 produced in 1975? No. 7542 is a recipe code that began in 1975 and can be produced every year after that; the actual production year is shown by the date or batch number on the package.

Does a smaller recipe number mean better tea? The 3rd digit indicates the grade of the material; the smaller the number, the finer and more tender the material, but tender doesn't mean better tasting. Coarser material gives a thicker flavor and holds up to more infusions, and each has its fans.

Do Guyuntang's teas have recipe numbers? Guyuntang Tea's two teas are sold by product name: Bingdao Old Village Dragon Pearls and the Pu'er Pyramid Tea Bag Gift Box. Specifications and descriptions are on the product pages.