Vinho Verde. Like no other wine in the world.
Canto esquerdo

Laboratory

Canto direito

Department of Physio-chemical Analysis
(Tasting Panel)

This is where all wine samples are subject to routine analyses, namely of the most representative wine parameters.

Divided into two, each sub-laboratory performs similar tasks but with different methods: one division uses automatic measuring equipment to obtains "rapid" results, whilst the other carries out the same tests but with testing bench methods, so-called official and/or reference methods.

The following tests are performed in the first laboratory, according to the aforementioned techniques:

Test Method used
Actual Alcohol Content Infra-red Spectroscopy
Volumetric Mass Automatic Hydrometer
Total Sulphur Dioxide Segmental Steady Flow
Free Sulphur Dioxide Segmental Steady Flow
Total Acidity Segmental Steady Flow
Volatile Acidity Segmental Steady Flow
pH Segmental Steady Flow
Reducing Sugars Segmental Steady Flow

For some specific tasks, the following tests are performed:

Test Method used
Glucose Segmental Steady Flow
Tartaric Acid Segmental Steady Flow
Malic Acid Segmental Steady Flow
Lactic Acid Segmental Steady Flow

The following tests are performed in the second laboratory:

Test Method used
Actual Alcohol Content NP 2143
Total Acidity Reg. CEE 2676/90
Volatile Acidity Reg. CEE 2676/90
Fixed Acidity Reg. CEE 2676/90
pH Reg. CEE 2676/90
Total Sulphur Dioxide Reg. CEE 2676/90
Free Sulphur Dioxide Reg. CEE 2676/90
Alcohol by Volume NP 2142
Total Dry Extract NP 2222
Reducing Sugars NP 2223
Total Sugar Content NP 2224
Sucrose NP 2225
Sugar Free Extract NP 2228
Ash NP 2221
Alkalinity of the Ash NP 2279
Synthetic Organic Dyes Test (Acid Function) NP 2275
Cyanidric Acid Derivatives Test NP 2446
Anthocyanidin Dyglucosid Test NP 2276
Sulphates Reg. CEE 2676/90
Stability Test-Oxidase Change pr NP 4266
Citric Acid Internal Method
Ascorbic Acid Internal Method
Chlorides Internal Method

In addition to these tests and to complement the analyses performed in the first laboratory, this laboratory is responsible for confirming the results obtained by the "rapid" methods in the event of doubts or when those results exceed maximum legal limits.