Liu Bao's New Rulebook: 180 Days and Seven Grades

Guangxi has spent a decade turning Liu Bao from a tea you either trust or you don't into a tea with a paper trail. The rulebook now fixes the process step by step, requires at least 180 days of aging before a tea may be sold as Liu Bao, sorts the result into grades, and since 2026 gives every batch a six-part digital trace. For buyers this is a real change — and a narrower one than the announcements suggest.

What the Rulebook Actually Says

Two documents do most of the work: the national standard for Liu Bao and the geographical-indication product standard issued by Guangxi in 2014. Around them sit 19 local standards, 73 group standards and one physical reference sample for sensory grading — 94 in total, with more than 300 items mapped across the chain from garden to cup. The parts that matter to a drinker fit in a table.

180 Days Is a Floor, Not a Vintage

The single most useful detail is where the clock starts. Aging begins when fermentation ends, not when the leaf was picked and not when the tea was packed. That is why a Liu Bao wrapper often shows two dates, and why the same cake can legitimately be labelled three different ways: aging date plus packing date, production date plus packing date, or aging date plus production date. In the first pairing, the production date is the packing date. In the second, "production" means the end of fermentation.

So the gap between the two numbers is the honest part. It tells you the minimum the tea has rested. What it does not tell you is anything that happened after the box left the factory — which, for a tea whose character is largely decided by storage, is most of the story.

And 180 days is a floor, not an achievement. It is the point at which a tea may legally be sold. Most commercial Liu Bao rests for a year or more; a batch that ships at 180 days is compliant and young.

Five Grades or Seven?

Here the paperwork has drifted. Guangxi's market regulator, summarising the system in 2026, describes seven grades. The 2014 geographical-indication standard listed five: Special Grade through Grade 4. Both descriptions are still in circulation, which is why two sellers can quote different "grades" for comparable tea and both feel correct.

What the number measures is leaf tenderness and a set of sensory and physical indices — not a ranking of how much you will enjoy the cup. Coarse leaf and stem are part of the traditional style, hold sweetness as they age, and are not a defect to be graded away.

The Numbers Behind the Standard

The industry figures are large: more than 26,000 hectares of tea garden, close to 45,000 tonnes a year, a combined output value near RMB 30 billion, a brand value of RMB 9.5 billion, a 100% pass rate in sampling over three years, and 110 quality certifications across the city's factories.

The export figures are not. Registered exporters have grown from fewer than three in 2014 to 29, and first-nine-month exports in 2026 reached RMB 1.7 million — more than ten times the level before the standards took effect, but from a base so small that the multiple flatters it. In September 2026, 3.1 tonnes shipped to Vietnam through the Pinglu Canal. The standard has done more for institutional access than for volume so far, and saying otherwise would be spin.

Three Questions at the Counter

This part is our practice, not a finding from any standard. When we look at a Liu Bao we ask three things that the rulebook makes answerable. Which grade, and by which scale. When aging began. And where the tea has been since it left the factory — because the certificate stops at the gate.

If a seller can answer the first two and is vague about the third, that tells you more than any label. Our collecting guide covers how storage styles change the tea, the ultimate guide covers the process itself, and our buying guide lists what to check before you pay.