The species: Vitis vinifera
Nearly all wine, table and raisin grapes in the world belong to one species, Vitis vinifera. A Wikipedia article on the Muscat family says it covers over 200 varieties of Vitis vinifera, used for wine, raisins and fresh eating. Its common trait is a strong floral aroma, linked to compounds called monoterpenes.
Muscat Hamburg sits inside this family. A 2003 paper in the journal VITIS describes it as "a fine black table grape variety with muscat flavour". That is the plainest botanical description we found for the variety.
Where the Panneer = Muscat Hamburg link comes from
Several sources use the two names for the same grape:
- The TNAU Agritech Portal lists "Muscat (Panneer)" among grape varieties and says Muscat is grown in Tamil Nadu regions with low to moderate rainfall.
- Krishi Jagran, in its report on the GI tag, writes "Cumbum Panneer Thratchai (also known as Muscat Hamburg)".
- FreshPlaza writes "Muscat Hamburg (panneer thiratchai)".
- The Wikipedia page for Black Muscat (the English name it uses for Muscat of Hamburg) says the grape is known locally as "Paneer" in Tamil Nadu.
These sources agree with each other. But note that several are news items and exam-preparation notes, and some may copy from one another. The TNAU entry is the strongest of them, because it comes from an agricultural university.
What is not proven in the sources we read
A grape name used in the field is not the same as a DNA match. To prove identity, scientists compare genetic markers of a vine against a reference sample. The 2003 study used two isozymes and 30 nuclear plus 5 chloroplast microsatellite markers on Muscat of Hamburg itself. We did not find a similar published comparison of Cumbum Panneer vines in the pages we opened.
So the careful statement is this: Panneer is accepted locally and in official-looking sources as Muscat Hamburg, but we could not open a study that confirms it by DNA.
There is a second point. One FAO-hosted page on grape production in India lists "Muscat Hamburg (Gulabi)" as a purple seeded variety. So another Indian name may be used for the same or a similar grape. We do not know how widely "Gulabi" is used for Panneer in Tamil Nadu.
What the berries look like
The Krishi Jagran article says Cumbum Panneer bunches are medium to large and compact, with purplish-brown colour. FreshPlaza says the seeded type dominates in the valley. The FAO-hosted page calls Muscat Hamburg a purple seeded variety. These descriptions fit together, though none is a formal botanical description.
Why this matters for readers
If you buy or write about Panneer grapes, it is fair to say "Panneer, generally identified as Muscat Hamburg". It is not fair to say that every vine in every Theni vineyard has been DNA-tested. Local clones and selections may also exist, and the sources do not discuss them.
The next articles in this series cover where the variety came from in England and how it may have reached Tamil Nadu.
Frequently asked questions
Is Panneer grape a Vitis vinifera?
Yes, as far as the sources show. Muscat Hamburg belongs to the Muscat family of Vitis vinifera, and Panneer is identified as Muscat Hamburg by TNAU and by news reports.
Has Panneer grape been confirmed as Muscat Hamburg by DNA?
We did not find such a study in the pages we opened. The 2003 DNA paper studied Muscat of Hamburg itself, not Cumbum vines.
Is Panneer the same as Gulabi?
One FAO-hosted page lists Muscat Hamburg as "Gulabi". We could not confirm how this name is used for Panneer in Tamil Nadu.
Sources
- Crespan M. (2003), The parentage of Muscat of Hamburg, VITIS Journal of Grapevine Research
- Muscat (grape) - Wikipedia
- Horticulture: Fruits: Grapes - TNAU Agritech Portal
- Tamil Nadu's Cumbum Grapes Secure Coveted GI Tag - Krishi Jagran
- Successful grape cultivation in India's Cumbum valley - FreshPlaza
- Black Muscat (Muscat of Hamburg) - Wikipedia
- Grape Production in India - FAO