Parrellada B
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Variety traits
Grape acidity
Vitis vinifera L.
A key indicator of berry quality, determined by the content of tartaric and malic acids, which influences harvest timing and the stability of future wine.
In the reference 507 varieties crop Common grape vine, where this is mentioned in the description.
To assess grape acidity, two complementary parameters are used: titratable acidity, which measures the total concentration of organic acids, and active acidity (pH), which characterizes the degree of hydrogen ion dissociation. Titratable acidity is typically measured in grams per liter expressed as tartaric acid.
Typical values for titratable acidity in grape must range from 4–12 g/l, with 6.0–8.0 g/l considered optimal for red varieties and 6.5–8.5 g/l for white ones. The optimal pH range for grapes is 3.0–3.6; values below 3.0 hinder fermentation, while values above 4.0 reduce stability.
Acidity is a dynamic indicator: during the ripening process, the acid level in berries decreases while sugar content increases. Monitoring the balance of these substances under various climatic conditions allows agronomists to determine the optimal harvest time, preventing excessive acidity or a "flat" taste in the berries.
General information about the subject — on the page Fruit acidity.
Varieties of Common grape vine mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Castets
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Muscadelle
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Valnosia
ActiveVitis vinifera L. · Common grape vine
Marco Stefanini
Hranatovyi Maharacha
TerminatedVitis vinifera L. · Common grape vine
Mal`chikov IUrii Oleksandrovych, Oliinykov Mykolai Petrovych, Klymenko Viktor Pavlovych, Volynkin Volodymyr Oleksandrovych, Troshyn Leonid Petrovych, Holodryha Pavlo IAkovych, Kireieva Liudmyla Kostiantynivna, Usatov Volodymyr Trokhymovych,
UA
1 record
Helios
ActiveVitis vinifera L. · Common grape vine
Dr. Norbert Becker im Staatl. Weinbauinstitut
DE
2 records
Gueuche noir
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Aspiran blanc
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Gergana
ActiveVitis vinifera L. · Common grape vine
P. Kurtev, D. Babrikov
BG
1 record
Plovdivska malaga
ActiveVitis vinifera L. · Common grape vine
P. Kurtev, D. Babrikov
BG
1 record
Cruchen
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Mariensteiner
Protection expiredVitis vinifera L. · Common grape vine
LAND BAYERN WUERZBURG| Land Bayern, vertreten durch Bayerische Landesanstalt fuer Weinbau und Gartenbau - Abt. Weinbau und Oenologie -
DE
2 records
Aspiran noir
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Aromatnyi
ActiveVitis vinifera L. · Common grape vine
Herus Liudmyla Vasylivna, Pis`menaia Larysa Mykhailivna, Bankovska Mariia Hryhorivna, Tulaieva Maiia Ivanivna, Chebanenko IEvheniia Pavlivna, Meleshko Larysa Fedorivna,
UA
2 records
Souvignier Gris
ActiveVitis vinifera L. · Common grape vine
Dr. Norbert Becker im Staatl. Weinbauinstitut
DE
2 records
Muskat Livadiia
TerminatedVitis vinifera L. · Common grape vine
Kalashnikov IUrii Mykolaiovych, Timukin IUrii Oleksandrovych, Yatskov Viktor Mykhailovych, Yurchenko Volodymyr IUriiovych, Kostik Mariia Antonivna, Holodryha Pavlo IAkovych,
UA
2 records
Counoise
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Grenache blanc
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Sérénèze N
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Grenache gris
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Gros Courbu
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
PIÑONERA
Application submittedVitis vinifera L. · Common grape vine
ITACYL (CASTILLA Y LEON)
ES
2 records
Ukrains'kyi 85
TerminatedVitis vinifera L. · Common grape vine
Abliazova Aia Pavlivna, Tulaieva Maiia Ivanivna, Dokuchaieva IEvheniia Mykolaivna, Aivazian Petros Karapetovych,
UA
1 record
Olivette noire
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record