Suitable for analysis of all (laboratory) wort samples
Copper in wort is measured using AAS by directly aspirating the diluted sample into an air-acetylene flame or by electrothermal atomization; the measurement is made at 324.7 nm.
Whole hops intended for use in beer brewing or elsewhere in the food industry
Evaluation of the appearance of hop cones is performed through visual and manual inspection.
Boiler water for use in the production of beer and other foods
Hydrazine and p-dimethylaminobenzaldehyde in an aqueous solution containing alcohol form a compound which is yellowish red in color.
The method describes how to determine pesticides and biocidal products in drinking water using high performance liquid chromatography.
Water intended for use as an ingredient in the production of beer (brewing liquor) or other foods
The determination is carried out by means of HPLC (refer to W-010.06.120 Quantitative Determination of Polycyclic Aromatic Hydrocarbons (PAH) in Drinking Water).
The method is suitable for the determination of water vapor volatile aroma compounds in beer.
Volatile aroma compounds are driven out of the sample through steam distillation. The ethanolic distillate is saturated with NaCl. Potassium hydrogen sulfite is added to separate carbonyl groups that might interfere with the analysis. The extraction of the aroma compounds is performed by shaking out with dichloromethane and the phases separated by centrifuging.