READ · COMPARE · EXPLAIN
Grenache: Distinguishing dry reds and fortified sweets
Explore Garnacha, also known as Grenache Noir, as it appears in Spain, southern France, and Australia. Distinguish between varietal differences and procedural differences such as where fermentation is stopped.
Questions for this course
Why do both dry and sweet red wines come from the same black grape?
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 ↓Grenache / Learn by grape
Also known as / Alternative names: Garnacha / Garnacha / Garnacha Tinta / Grenache Noir
Update date: 2026-09-23
Don’t confuse black, white, and gray
Spanish Garnacha Tinta and French Grenache Noir are names for the same black grape variety. This course covers that black variety. Since Grenache Blanc and Gris also exist, always check which color type is referenced when you see "Grenache" in documentation.
Whether single-variety or blend
Grenache Noir is used for red, rosé, and sweet wines. The Australian GSM blend combines Grenache, Shiraz, and Mourvèdre. Though the variety can be identified by the abbreviation, the blend ratio is not fixed. Compare by aligning region, vintage, and each grape’s percentage.
Ways to halt fermentation to retain sweetness
In Roussillon's vins doux naturels, mutage (adding alcohol during fermentation) is used to leave residual sugar. Domaine Boudau's Rivesaltes Grenat is made from Grenache Noir. Do not conclude that it is dry just from the red color and ripe fruit aroma—check for information on fortification and residual sugar.
What to align and what to compare.
Read the designation
- Conditions to standardize
- Garnacha and Grenache
- Conditions for comparison.
- Black, white, and gray types
- Additional points to confirm
- Distinguish synonyms and mutations among black grape varieties
Read the blend
- Conditions to standardize
- Reds that use Grenache
- Conditions for comparison.
- Single variety and GSM
- Additional points to confirm
- Do not determine proportions based on abbreviations.
Interpret (or read) the fermentation
- Conditions to standardize
- Juice containing sugar.
- Conditions for comparison.
- Progress of fermentation and mutage
- Additional points to confirm
- Explain the method used to retain sweetness
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
Syrah and Grenache
Compare the roles of Syrah and Grenache.
- 2↗
Spain
Priorat: Reading vineyards through slopes and grape varieties
Read about the combination of slopes, old vines, and blends.
- 3↗
France
Roussillon
Distinguish between dry and fortified sweet wines.
- 4↗
Australia
McLaren Vale: Sea and Grenache
Consider both the influence of the sea and the expression of Grenache.
READ · HYPOTHESIZE · RECONSIDER
Reading Grenache materials: Distinguishing dry reds and fortified sweets
Consider the relationship between sugar and fermentation, using a hypothetical example where the same juice is split in two.
This is a hypothetical example for learning. The juice of the same Grenache Noir is split and vinified as red wine.
This is not based on actual AOP production methods or figures.
| Item | A | B |
|---|---|---|
| Fermentation | Proceed until it becomes dry. | Stop by adding alcohol during the process |
| Residual sugar | Few | Remains more in A. |
| Maturation method | Not presented | Not presented |
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.
Why does B retain more sugar?
In this example, the point of difference is when fortification occurs during fermentation. With the same variety, the level of residual sugar varies depending on how fermentation is managed.
Which of the following is an operation performed on B?
The technique of adding alcohol during fermentation to stop it is called mutage.
Does B always go through oxidative aging?
The process of stopping fermentation and the subsequent maturation are separate. Check for oxygen exposure, vessels, and duration.
Basis and sources for the exercise
Practice exercises in comparison
Consider the relationship between sugar and fermentation, using a hypothetical example where the same juice is split in two.
Read examples of organizing comparisons
| Conditions for Comparison | Dry red | Sweet red wines made by fortification |
|---|---|---|
| Grapes | Grenache can be used | Grenache can be used |
| Sugar handling. | Convert most of the sugar to alcohol through fermentation | Only part of it is preserved by fortification during fermentation. |
| Materials for Comparison | Blend, extraction, maturation | Mutage, Residual Sugar, Aging |
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
Using process rather than variety name, explain why the sweetness differs between two reds. Also list the materials needed to compare post-aging aroma.
Check after writing
- Did you explain the relationship between fermentation and fortification?
- Confirm that the sugar is grape-derived.
- Did you distinguish between sweetness and aromas from aging?
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 →