This method describes the determination of the extract content of malt through the application of a complete extraction technique.
Malt intended for use in beer brewing or elsewhere in the food industry
Since the Congress mash method does not accurately quantify the extract content of malt, an attempt was made to eliminate the sources of error present in the method. The method described below incorporates the procedure for producing a Congress mash according to the EBC, followed by a complete extraction of the dissolved substances with a suitable apparatus. After the extraction is complete, the weight is determined. This method is preferred for determining brewhouse yield (e.g., during brewhouse equipment commissioning tests).
Determination of the fermentation cellar yield in order to monitor brewhouse operations
Wort from the midpoint of chilling/pitching wort
The fermentation cellar yield is calculated using the value determined for the amount of extract contained in a batch of wort relative to the amount of extract present in the raw materials used to produce the wort.
This method describes how to determine the extract content of roasted and caramel (crystal) malt by means of a modified Congress mash method.
Roasted and caramel (crystal) malts intended for use in beer brewing or elsewhere in the food industry
Pilsner malt, of which the moisture content, extract and color are known, is mashed together with roasted or caramel (crystal) malt according to the Congress mash method. The extract content of the roasted or caramel (crystal) malt is determined by taking the analysis values for the pilsner malt into account.
Suitable for any wort or mash
The time required for a volumetrically defined amount of fluid (the volume between two marks on the tube of the viscometer) to flow through a capillary of a defined length is measured.
Definition:
1 square meter per second is the kinematic viscosity of a homogenous fluid with a dynamic viscosity of 1 Pa × s and a density 1 kg/m3.
The unit for expressing kinematic viscosity (the relationship of viscosity to density = viscoplasticity) is 1 m2/s = 106 mm2/s
Wheat malt intended for use in the production of beer
The method describes how to determine the temperature of water using a thermometer.
Water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
Measurement of the water temperature at the sampling location as well as the ambient room temperature is of consequence for evaluating analysis results, the solubility of gases in water and possible reactions. Sudden variations in the temperature of well water might indicate that surface water is entering the well.