Green beer, beer
The original gravity (p), apparent extract (EA) and real extract (ER) of the green beer and the fully matured beer are measured. From this, the apparent and real attenuation are calculated. Normally, only the apparent attenuation of beer is determined in practice.
Analysis of the chloride content of beer, wort, water, NAB and other beverages
The analysis method can be employed for determining the chloride content of beer, wort, water, NAB and other beverages.
Chloride ions are precipitated with silver nitrate as silver chloride. The endpoint of the titration can be determined by means of a conductometer. The conductivity increases as soon as all of the chloride ions are eliminated, causing the concentration of the unbound silver nitrate to increase.
This method is suitable for the determination of anions (chloride, sulfate, nitrate, phosphate) in beer samples and other beverages by means of ion chromatography.
The anions chloride, sulfate, nitrate and phosphate are separated by means of ion chromatography. The conductivity detection with a suppressor provides quantitative information about the anions. The concentrations are calculated by means of the individual areas under the peaks from the chromatogram with reference to calibration factors.
Determination of the density of a liquid by means of an oscillating U-tube device
wort, beer, beer-based beverages, non-alcoholic beverages, beverages, liquids
Determining the density with a digital density measuring device is performed by the electric excitation of a measurement cell (oscillating U-tube) filled with the solution to be analyzed. As the solution increases in density (corresponding to an increase in mass at the same volume in the measurement cell), this has an effect on the oscillation period (resonance frequency) in the measurement cell. The density can then be calculated from the oscillation period and from this value, the other quantities, e.g., extract content, can be extrapolated [1, 2, 3].
Determination/calculation of the apparent extract content from the SGA20/20 or the density of a liquid
wort, beer, beer-based beverage, NAB, beverage
Determine the SGA20/20 obtained from pycnometry or the density measured with a precision hydrometer or another device for measuring the density. Using the value from the SGA20/20 measurement or the density from the sugar, alcohol, original gravity and correction table according to GOLDINER/KLEMANN, BLOCK, KÄMPF or a polynomial, determine the apparent extract content of the sample.
Determination/calculation of original gravity, alcohol and real extract content after distillation of beer, beer-based beverages or beverages.
Beer, beer-based beverages, beverages
After distillation of the sample, the original gravity, alcohol and real extract content of the beer in beer-based beverages or other beverages can be determined from the densities of the distillate and residue.