Special wines are produced by special methods of processing and vinification fresh grapes or by add

Content Classification of wine Pyknometer wine analysis: determination of specific gravity, alcoholic strength and the content of total extract of wine Calibration of pycnometer Determination of relative density (specific gravity) of wine pycnometric determine the amount of alcohol in wine pycnometric determining the amount of extract in wine Determination of the amount of alcohol in wine ALCOHOLOMETERS Determination of alcohol Wine maligand's ebulioskopom Determination of extract in wine Determination of total dry extract of wine (OIV reference method) Determination of the extract by evaporation in wine Determination of the amount of sugar in wine Ash content in wine Volatile acids in wine Determination of volatile crystal candy dish acids in wine Determination of acid neispraljivih in wine Determination of citric acid in the wine Sulfur dioxide in wine Determination of sulfur dioxide in wine method Ripper's Determination of the overall color and tannin substances in red wines Index Folin-Ciocalteu (OIV reference method) Index of potassium permanganate Determination of the coloring matter in red wines Determining the intensity and color of red wines
Instead of the term "physical-chemical analysis of wine" is often used the term "chemical analysis of wines." Although the latter term is common, it is not poptunosti accurate. It is true that the determination of the components of the chemical composition of wine is mostly carried out in the laboratories of enohemiju or chemistry. However, in determining the individual components of wine applied methods or not chemical or combination of chemicals and other, primarily natural method. It is, therefore, the determination of the components of the chemical composition of wine, but not limited crystal candy dish to chemical analyzes. . Classification of wine
There are many classifications of wines that were performed according to very different criteria. Laws and regulations on wine in most of Viticulture and Enology countries under wine is implied here is the product of alcoholic fermentation of crushed fruit or wider than the noble grape vine Vitis vinifera L. laws and regulations are also regulated conditions and technology in the production of wine and other alcoholic grape and of spread as well as their quality of traffic conditions and traffic.
Sparkling wines are a special category of wines that upon opening the bottle forming foam as a result of the release of carbon crystal candy dish dioxide. Carbon dioxide in the wine may be present as a result of additional fermentation of sugar or may be added to wine, which is under pressure. Depending on the origin of carbon dioxide in the sparkling wines are divided into:
Special wines are produced by special methods of processing and vinification fresh grapes or by adding the required amount Šećar, concentrated beyond, wine distillate, odoriferous substances and other means dozvoljanih in the production of alcoholic beverages. Special wines can be divided into:
White wines are usually made from white grapes, and red and pink wines exclusively from red grapes. In exceptional cases, white wines can be produced from red grapes. In the production of white wine fermentation takes place elsewhere, with the preparation of red wine fermentation of crushed fruit. Production rose wine is mostly carried out by fermentation of crushed fruit, with a faster separation of the solid and liquid phases.
Knowledge of belonging to certain categories of wine in as many as possible klasifikaconih scheme greatly facilitates the performance of analytical procedures. . Pyknometer wine analysis: determination of specific gravity, alcoholic strength and the content of total extract of wine
Pycnometric the continuing operation procedure determines the relative density of the wine, the amount of alcohol and the amount of extract in the wine. These are called. denzimetrijskim methods by which the amounts of individual components in the solution are determined based on the relative density of the solution was invented.
Pycnometers are made of special high-quality glass ("Pyrex"). The most common volume of 50 or 100 ml. The lower part of the pycnometer was expanded and therein lies the tag volume, while the upper part is in the form of a long and narrow neck region in which it is drawn mark (brand) which can be filled pycnometer. It is desirable that the neck is as narrow and that the brand closer to the top of the cervix, because then the fault in the less. Working with Oscillation involves the use of a specific fine glassware and accessories (funnels with narrow tubes, crystal candy dish glass tubes, etc.. Pycnometer used to determine the specific gravity (relative density), alcohol content and extract the contents of the wine should be regularly calibrated (calibrate).
Before first use and periodically during use is necessary to determine the exact weight and volume of the pycnometer. These data must be established crystal candy dish with maximum precision because the paper will constantly used. On pycnometers are factory mark volumes (usually 20 C), but they are not sufficiently accurate and the laboratories must odrditi with accuracy of four decimal places. Determining the mass and volume of the pycnometer is known under