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FRANCE / THE LEARNING WORKSHOP

Read the labeling and compare with actual examples.

Once you organize the label and process, compare real wines by vintage, variety and producer.

READ THE LABEL

Place names, grape varieties, and sugar content are separate matters.

When you select a labeling term, you'll learn what it communicates.

Champagne

A protected designation of origin. The production method of bottle refermentation alone does not permit the use of this name.

Read the main text and sources →

This is a fictional combination designed to study the role of labeling. It does not cover all mandatory labelling requirements for real labels.

RELATIONSHIPS

Sugar that produces bubbles, and finishing sugar.

Champagne process

Chronological order of the process

  1. ① Tirage & secondary fermentation

    Sugar and yeast are added to produce bubbles in the bottle.

  2. ② Aging on lees & disgorgement

    Collected by remuage, removed by disgorgement.

  3. ③ Dosage

    Finishing after lees removal. Confirm final sweetness category.

This is a summary of the relationships explained in the main text. For details on grape composition and production conditions, please refer to the main text and official sources. Sources and reference materials

Read the detailed explanation and sources →

RELATIONSHIPS

System for place of origin and classification targets.

French label

Distinguish different roles.

  • AOC / AOP・IGP

    Systems for origin and geographical indications.

  • Unique classifications specific to the region

    Is it about the vineyard or chateau? Confirm what system is being classified.

This is a summary of the relationships explained in the main text. For details on grape composition and production conditions, please refer to the main text and official sources. Sources and reference materials

Read the detailed explanation and sources →

CASE STUDY / Learning from real-world examples

Align producers and check the denominator for your figures.

Blend ratio and adoption rate are separate figures. Switch the item you are viewing and consider the question below the diagram.

varietal proportions in the finished product

Château Margaux 2021

  • Cabernet Sauvignon87%
  • Merlot8%
  • Cabernet Franc3%
  • Petit Verdot2%
Subject
Grand Vin blend

Château Margaux 2022

  • Cabernet Sauvignon92%
  • Merlot6%
  • Cabernet Franc2%
  • Petit Verdot0%
Subject
Grand Vin blend

Cabernet increased by 5 points. Was the vineyard replanted at the same ratio?

Check your way of thinking

This graph shows the composition of finished wines. It does not show changes in planted area. The yield for each variety and which wines were selected as Grand Vin influence the ratios.

Adoption rate from harvest

2021

Being selected for the Grand Vin
36% of the harvest
Cabernet Sauvignon
87% of the finished product

Year 2022

Being selected for the Grand Vin
40% of the harvest
Cabernet Sauvignon
92% of the finished product

If you add 36% and 87%, does it become 123%?

Check your way of thinking

Cannot be added. 36% is the adoption rate from harvest to selection as Grand Vin; 87% is the varietal composition of the finished wine. The denominators differ. The quality ranking for the vintage is not determined by adoption rate alone.

Reference materials:Château Margaux | Grand Vin 2021 ↗ ／ Château Margaux | Grand Vin 2022 ↗

Read producer's commentary →

CASE STUDY / Learning from real-world examples

What should be controlled and what should be varied for comparison?

Choose a comparative approach using Clos des Mouches as an example. This is a tasting proposal, not a record of actual tasting results here.

Change white wine producers.

Drouhin's White

Conditions to standardize
Beaune Premier Cru / Clos des Mouches / Chardonnay / Same vintage
Description of the plot
The estate's own vineyards are located mid-slope, facing east to southeast.

Chanson’s white

Conditions to standardize
Beaune Premier Cru / Clos des Mouches / Chardonnay / Same vintage
Description of the plot
White wine plots are located on upper slopes and face east.

If there are four common conditions, can the comparison focus solely on winemaking methods?

Check your way of thinking

The location of the plot and method of cultivation remain. Even if the names of climats are standardized, splitting the same grape among different vinification processes does not constitute an experiment. The reference year also differs between the two companies, so check the specification for the actual year you choose.

Comparing Drouhin’s red and white

Clos des Mouches Red

Conditions to be standardized
Producer • Climat • Vintage
Grapes
Pinot Noir
Handling of skins
Fermentation / Extracting pigments and tannins by maceration

Clos des Mouches White

Conditions to be standardized
Producer • Climat • Vintage
Grapes
Chardonnay
Handling of skins
Fermentation of pressed juice.

Is the difference between red and white only skin maceration?

Check your way of thinking

Grape varieties also change. It's necessary to check the parcel planted, harvest decisions, fermentation and maturation. Using the same vineyard name as a clue, this is a comparison of how the producer designs both red and white.

Change the vintage of the same red

Drouhin: Red, a Certain Vintage

Conditions to be standardized
Producer / Label / Grape Variety
What to research
Weather, harvest date, percentage of whole clusters, extraction, maturation

Drouhin: Red, Another Vintage

Conditions to be standardized
Producer / Label / Grape Variety
What to research
The same item, and the elapsed time and storage condition after bottling.

Based on the explanation of 20–50% whole clusters, can a single percentage be determined for 2021?

Check your way of thinking

Cannot be determined. The reference page allows for variation according to the year. If the value for the target year has not been published, record it as unconfirmed; do not treat the upper limit or average as the specification for that year.

Reference materials:Joseph Drouhin | Clos des Mouches Red 2021 ↗ ／ Joseph Drouhin | Clos des Mouches White 2017: Vineyard description ↗ ／ Domaine Chanson | Clos des Mouches White 2024 ↗

Read producer's commentary →

CASE STUDY / Learning from real-world examples

Read variety, vintage, and maturation time separately.

This compares the product description of Special Cuvée and documentation for La Grande Année 2014. All numbers are based on official statements confirmed as of September 2026.

Grape variety and vintage

Special Cuvée

  • Pinot Noir60%
  • Chardonnay25%
  • Meunier15%
Vintage year
Multiple vintages. Includes reserve wine

La Grande Année 2014

  • Pinot Noir61%
  • Chardonnay39%
  • Meunier0%
Vintage year
2014. Blend of 19 crus

Is the taste nearly the same if the proportion of Pinot Noir is about the same?

Check your way of thinking

The rest differ in grape varieties, vineyards, vintages, fermentation, and aging. You cannot judge flavor proximity from this ratio alone.

Which stage’s duration?

Before blending

Special Cuvée
Some reserve wines are stored in magnums for 7–15 years.
Information that can be discerned
Duration spent by part of the compositional elements

After blending

Bottle-fermented and lees-aged.
an alternative process to complete the cuvée
After that.
There is also elapsed time after lees removal, shipping, and post-purchase storage

Can 7 to 15 years be called the total maturation period of the finished wine as it is?

Check your way of thinking

Cannot name. This refers only to part of the reserve aging period and is separate from the bottle aging after blending. Always specify both scope and process with durations.

Comparing dosage

Special Cuvée

Declared dosage.
7〜8g/L
Scope of the source material
Producer product introduction

La Grande Année 2014

Declared dosage.
8g/L
Scope of the source material
2014 Cuvée

If the numbers are close, does that always mean the perceived sweetness is the same?

Check your way of thinking

Perception is also affected by acidity, aging, aroma, and serving temperature. Compare dosage separately and record sweetness as perceived in the glass separately.

Reference materials:Bollinger | Special Cuvée ↗ ／ Bollinger | La Grande Année 2014 ↗ ／ Champagne Committee | Tirage and secondary fermentation ↗

Read producer's commentary →

CHECK YOUR UNDERSTANDING

Ten questions to decipher the material.

When you select an answer, the rationale is displayed. At the end, you can review explanations for incorrectly answered questions all together. Incorrect questions are saved to this browser's Study notebook, and once you answer correctly, they are removed from the retry list. Scores and in-progress responses are not saved.

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1 / 10 Questions

The diagrams are created based on official materials for each article.

Editorial policy and list of sources →