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Scoring rubrics

How a cup is scored — the mathematics of tea evaluation

Behind every top-grade tea certificate and auction bid sits a numeric score — the quiet architecture of tea evaluation. China's national 100-point standard, the trade's quick 20-point card, and the finer-grained rubric taught for tea.academy certification are three different instruments built for three different jobs. This topic maps how each one turns aroma and texture into a number two strangers can agree on.

From a master’s word to a number two people can check

For most of Chinese tea’s documented history, quality was decided by one expert’s pronouncement — a buyer tasted a dozen lots and picked the best against a mental map built over decades. The method produced tasters whose names still carry weight in Hangzhou and Fuding, but it did not travel: a verdict formed over thirty years in one cupping room could not be handed to a new grader in an afternoon. Scoring rubrics exist to close that gap, trading a little of the master’s nuance for a number a second taster can reproduce.

The reference point is GB/T 23776, China’s national methodology for the sensory evaluation of tea, finalised in 2009 and revised in 2018. It defines a 100-point scale, but the split is not fixed across categories — it shifts with what each style is built to show. For green tea the weighting runs appearance 25, liquor colour 10, aroma 25, taste 30, infused leaf 10; oolong pushes aroma and taste to 30 points each; dark tea lifts taste as high as 35, reflecting its role as a post-fermented, mouth-coating brew. The companion article 100-point vs 20-point rubric — when each is right works through these weightings category by category, including the mid-point clustering that erases a rubric’s discrimination if a panel is not calibrated against reference samples first. Trade buyers, meanwhile, often reach for a faster 20-point card — four criteria at up to five points each — built for a go/no-go decision in the minutes between one sample and the next, not for a decimal-place argument over a competition medal.

Tea.academy examinations add a third layer, adapting the national standard for a training and certification setting rather than a factory floor. The article The official tea.academy rubric explained, criterion-by-criterion walks through its six weighted dimensions — dry leaf, aroma across a hot-warm-cold sequence, liquor colour, taste and mouthfeel, infused leaf, and a closing aftertaste-and-harmony score — built to make candidates name what a passing palate detects, not just feel it. Chen Hui Yi, who helped write that rubric, puts the difference in teaching terms: a 100-point card rewards a taster who can defend a decimal point; a 20-point card rewards one who can make a decision before the next sample arrives. Neither replaces the other — a buyer moving between a Fuding white-tea market and a formal cupping room needs both fluencies, and switching between them without noticing which one you are holding is the most common scoring error this topic exists to prevent.

None of this replaces a trained palate — it gives that palate a shared vocabulary. A shēng pu-erh scored by a panel in Hangzhou and the same lot re-scored at a Guangzhou cupping room should land within a point or two of each other, provided both panels calibrated against the same reference set first — the discipline covered in this site’s calibration protocol topic. A rubric is a reduction, never the tea itself. What it buys is a conversation two tasters, a thousand kilometres apart, can actually have.

14 articles

In this topic

  1. — 01

    نظام تقييم 100 نقطة مقابل 20 نقطة — متى يكون كل منهما مناسبًا

    يواجه مشتري الشاي السؤال نفسه كل صباح: هل هذا الشاي 87 أم 89؟ يمكن للإجابة أن تغير سعر الكيلوغرام بمئات اليوانات. لكن متى تكون هذه الدقة مهمة، ومتى يخدم مقياس أبسط من 20 نقطة المتذوق بشكل أفضل؟ نُفكّك نظامي التقييم الرقمي السائدين في تقييم الشاي الصيني ونوضح أين يتألق كل منهما.

  2. — 02

    شرح معايير tea.academy الرسمية، معياراً تلو الآخر

    جولة مفصلة في نظام التقييم الحسي ذي المئة نقطة الذي يشكل أساس امتحانات tea.academy والشراء التجاري الاحترافي — من هندسة الورقة الجافة إلى آخر أثر للحلاوة على الأنفاس.

  3. — 03

    100-point vs 20-point rubric — when each is right

    A tea buyer faces the same question every morning: is this tea an 87 or an 89? The answer can shift a price per kilogram by hundreds of yuan. But when does that fine grain matter, and when does a simpler 20-point scale serve the taster better? We unpack the two dominant scoring rubrics in Chinese tea appraisal and show where each earns its keep.

  4. — 04

    The official tea.academy rubric explained, criterion-by-criterion

    A criterion-by-criterion tour of the 100-point sensory evaluation system that anchors tea.academy examinations and professional trade buying — from dry leaf geometry to the last echo of sweetness on the breath.

  5. — 05

    Rúbrica de 100 puntos vs 20 puntos — cuándo usar cada una

    Un comprador de té se enfrenta cada mañana a la misma pregunta: ¿este té es un 87 o un 89? La respuesta puede desplazar el precio por kilogramo cientos de yuanes. Pero, ¿cuándo importa ese grano fino y cuándo una sencilla escala de 20 puntos sirve mejor al catador? Desglosamos las dos rúbricas de puntuación dominantes en la evaluación del té chino y mostramos dónde cada una rinde sus frutos.

  6. — 06

    La rúbrica oficial de tea.academy explicada, criterio por criterio

    Un recorrido criterio por criterio del sistema de evaluación sensorial de 100 puntos que fundamenta los exámenes de tea.academy y la compra profesional de té — desde la geometría de la hoja seca hasta el último eco de dulzor en el aliento.

  7. — 07

    Notation sur 100 points et sur 20 points — quand les utiliser

    Un acheteur de thé se pose la même question chaque matin : ce thé vaut-il 87 ou 89 ? La réponse peut faire varier le prix au kilogramme de plusieurs centaines de yuans. Mais quand cette granularité a-t-elle de l'importance, et quand une échelle plus simple sur 20 points sert-elle mieux le dégustateur ? Nous décortiquons les deux principales rubriques de notation utilisées dans l'évaluation du thé chinois et montrons où chacune s'avère pertinente.

  8. — 08

    La grille d'évaluation officielle de tea.academy expliquée, critère par critère

    Un parcours critère par critère du système d'évaluation sensorielle à 100 points qui sous-tend les examens de tea.academy et les achats professionnels — de la géométrie de la feuille sèche jusqu'au dernier écho de douceur dans l'haleine.

  9. — 09

    Сравнение 100-балльной и 20-балльной шкал — когда каждая уместна

    Каждое утро закупщик чая сталкивается с одним и тем же вопросом: этот чай — 87 или 89? Ответ может изменить цену за килограмм на сотни юаней. Но когда эта тонкая детализация имеет значение, а когда более простая 20-балльная шкала лучше служит дегустатору? Мы разбираем две доминирующие системы оценки в китайской чайной экспертизе и показываем, где каждая оправдывает себя.

  10. — 10

    Официальная рубрика tea.academy: объяснение по каждому критерию

    Покритериальный обзор 100-балльной системы сенсорной оценки, лежащей в основе экзаменов tea.academy и профессиональных закупок — от геометрии сухого листа до последнего отголоска сладости на дыхании.

  11. — 11

    百分制与二十分制评分系统 — 各自适用的时机

    每位茶叶采购者每天早上都面临同样的问题:这款茶是87分还是89分?答案可能让每公斤的价格差上数百元。但何时这种细微差异才重要?何时简单的二十分制反而更适合品鉴?我们拆解中国茶叶审评中两大主流评分系统,并说明各自适用之处。

  12. — 12

    官方 tea.academy 评分标准逐项说明

    逐项浏览 tea.academy 考试与专业采购所依托的百分感官评鉴体系——从干茶外形到气息中的最后一丝回甘。

  13. — 13

    百分制與二十分制評分系統 — 各自適用的時機

    每位茶葉採購者每天早上都面臨同樣的問題:這款茶是87分還是89分?答案可能讓每公斤的價格差上數百元。但何時這種細微差異才重要?何時簡單的二十分制反而更適合品鑑?我們拆解中國茶葉審評中兩大主流評分系統,並說明各自適用之處。

  14. — 14

    官方 tea.academy 評分標準逐項說明

    逐項瀏覽 tea.academy 考試與專業採購所依託的百分感官評鑑體系——從乾茶外形到氣息中的最後一絲回甘。