READ · COMPARE · EXPLAIN
Merlot: Comparing the timing and decisions for ripening and harvest
Comparing Bordeaux and Hawke's Bay, consider the relationship between ripening, vineyard, and harvest. Think of the soft mouthfeel of Merlot separately from the wine's lightness and aging period.
Questions for this course
If a grape variety ripens early, is it always harvested first in every vineyard?
Before you start reading, briefly jot down your thoughts. You will rephrase them at the end.
To applied practice using the material ↓
To explanation task notes ↓Merlot / Study by Grape
Also known as / Alternative names: Merlot
Update date: 2026-09-23
Early ripening is not a promise of harvest date.
Merlot tends to ripen earlier than Cabernet Sauvignon. However, comparison of ripening stages and actual harvest dates are different. Even for varieties familiar in Bordeaux, the decision to harvest depends on the vineyard conditions and the year’s weather. You cannot determine the harvest order in an unfamiliar vineyard solely based on the tendency for early ripening.
Distinguish softness from lightness.
CIVB introduces Merlot as a variety that produces anything from light reds to powerful reds intended for long aging. A soft mouthfeel is not synonymous with low alcohol or short aging. When considering the role in the blend, do not automatically assume it is a supporting variety; check the proportion and intended style.
Choosing grapes within the same region
Radburnd Cellars' 2020 Merlot-Cabernet is made from three vineyards located in the Bridge Pa Triangle and Gimblett Gravels areas of Hawke's Bay. The producer explains that Merlot in these well-drained vineyards matured first, followed by Cabernet. Simply knowing the region does not reveal the differences in grape sources.
What to align and what to compare.
Evaluate the stage of ripeness.
- Conditions to standardize
- Two black grape varieties
- Conditions for comparison.
- The time required until harvest
- Additional points to confirm
- Match varietal trends to block records
Read about texture.
- Conditions to standardize
- Merlot red
- Conditions for comparison.
- From light, easy-drinking styles to those suited for ageing
- Additional points to confirm
- Do not equate softness with lightness.
Reading the raw material
- Conditions to standardize
- A single finished product
- Conditions for comparison.
- Multiple vineyards within a region
- Additional points to confirm
- Which plots are combined?
Order of reading and key points to consider in each article
0 / 4 articles completed
Next article →Progress is recorded as the completion of reading articles. This does not include completion of explanatory assignments.
- 1↗
France
Cabernet Sauvignon and Merlot
Compare the roles of ripeness and blending.
- 2↗
France
Bordeaux
Consider differences in raw materials based on the geography of the right and left banks.
- 3↗
New Zealand
Hawke’s Bay: gravel plains and reds
Check the differences between coast, plains, and hills.
- 4↗
United States
Washington: Rain shadow and the Columbia Valley
Read the growing conditions of inland areas and how they relate to Bordeaux varieties.
READ · HYPOTHESIZE · RECONSIDER
Merlot document analysis: Compare ripening periods and harvest decisions
From an imaginary harvest record, distinguish between the ripening periods for grape varieties and decisions for each plot.
This is a hypothetical example for learning. It shows three plots in the same region, same year.
Sugar content, acidity, skin and seed condition, and winemaking methods are not provided.
| Plot | Grapes | Harvest date |
|---|---|---|
| A | Merlot | September 18 |
| B | Merlot | September 27 |
| C | Cabernet Sauvignon | October 3 |
Each hypothesis or reflection can be up to 2,000 characters. You can save your answers even if you only select an option.
Manually save to this browser. When you reopen, you can continue from where you left off. This is a separate record from the course explanation task notes. If you save with all fields unselected or blank, this exercise record will be deleted.
Read the explanation for each question
By answering in the selection field, you can compare your answers and explanations using the top button. Freeform responses will not be automatically graded.
What can be confirmed from this record?
What can be confirmed is the order of harvest from three plots in this year. You cannot replace a typical ripening period with a single date common to all regions.
What does the difference in dates between A and B indicate?
Factors besides grape variety are also involved. The date alone does not reveal the reasons for the differences or the quality ranking.
Which materials are useful for understanding decisions about harvest in more detail?
By comparing the records of ripening decisions and vineyard conditions, you can concretely examine the differences in dates.
Basis and sources for the exercise
Practice exercises in comparison
From an imaginary harvest record, distinguish between the ripening periods for grape varieties and decisions for each plot.
Read examples of organizing comparisons
| Conditions for Comparison | Ripening period of the grape variety. | Vineyard harvest records |
|---|---|---|
| What is indicated | Trends in ripening speed | Decisions made for that year and parcel. |
| Necessary comparison | Other varieties under the same conditions. | Parcel, vintage, condition of raw materials |
| Relation to flavor | Ripening alone does not determine lightness | Also review winemaking after harvest. |
This is an organized study tool based on the designated articles for this course. You can check specific facts and sources in each article.
Explain in your own words
If the harvest date is different between two Merlot plots, which additional records would you check? List two possibilities and explain without making assumptions about the taste.
Check after writing
- Did you distinguish grape variety from vineyard block?
- Are you ranking quality based solely on the harvest date?
- Did you specify which information to check, such as ripeness and weather?
Save response to explanation task
Compare your initial thoughts with how they have changed after reading the article.
Maximum 5,000 characters. This is stored within this browser. Press "Save" to record your note. Saving a blank will delete this note.
View saved notes →