Detection and enumeration of non-Saccharomyces yeasts in fermenting beer or other yeast containing samples. Descriptors: plating technique, nitrogen requirements, lysine plates.

Quantitative detection of Dekkera wild yeasts in samples of brewers' yeast, fermenting beer and filtered beer. Descriptors: Dekkera (formerly Brettanomyces); Dekkera medium, produce acetic acid.

It is necessary to use EBC Microbiology 2.3.3.1 or 2.3.3.2, 2.3.4.2 and 2.3.5.4 and 1.4.3

Determination of the biological stability of bottled beer at room temperature. Descriptors: Shelf Life of Beer in Bottles, growth of microorganisms

Determination of the biological stability of beer at room temperature. This method is applicable to a package that is not penetrable to light, such as can, keg or shielded bottle. It is also applicable to dark beer. Descriptors; shelf life of beer in cans and kegs, growth of microorganisms, off-flavour.

Determination of the biological stability of beer at room temperature. The method is applicable to kegged beer. Descriptors: shelf life of kegged beer transferred to bottles, growth of microorganisms.

It is necessary to use EBC Microbiology 2.2.1.5 and 4.3.1.1

Qualitative detection of microorganisms in bottled beer. Descriptors: enrichment, growth of microorganisms.

It is necessary to use EBC Microbiology 4.3.1.1

Quantitative evaluation of aerobic and facultative microorganisms in filtered beer, recovered beer, beer in keg, etc. Descriptors: general aerobic count on beer, growth of microorganisms.

It is necesary to use EBC Microbiology 2.3.2.1 and 2.3.3.2 and 2.3.4.2

Quantitative evaluation of anaerobic microorganisms in filtered beer, recovered beer, beer in keg, etc. Descriptors: general anaerobic count on beer, growth of microorganisms.

It is necessary to use EBC Microbiology 2.3.2.1 and 2.3.2.2 and 2.3.4.3 or 2.3.4.4

Quantitative detection of bacteria belonging to the genera Lactobacillus and Pediococcus. Descriptors. lactic acid bacteria, selective culture medium, microscopy, gram differentiation, catalase test, membrane filtration, incubation.

It is necessary to use EBC Microbiology 2.3.2.1, 2.3.2.2, 2.3.4.3, 2.3.5.4, 2.3.6.1 or 2.3.6.2 and 2.3.7 

Quantitative detection of strictly anaerobic Pectinatus and Megasphaera in bottled beer. Pectinatus and Megasphaera may arise as secondary contaminants when tunnel pasteurisation of the packaged product is not applied. Descriptors: anaerobic incubation, microscopy, selective medium.

It is necessary to use EBC Microbiology 2.3.7 and 2.3.6.1 and 2.3.6.2

Qualitative detection of strictly anaerobic Pectinatus and Megasphaera in bottled  beer. Pectinatus and Megasphaera may arise as secondary contaminants when tunnel pasteurisation of the packaged product is not applied. Descriptors: selective enrichment, anaerobic incubation.

It is necessary to use EBC Microbiology 2.3.5.1, 2.3.5.2, 2.3.5.3 and 2.3.5.4 and 2.3.6.1 and 2.3.6.2

Detection of culturable water bacteria. Descriptors: growth medium. For full details see: EN ISO 6222:2000 Enumeration of culturable micro-organisms — colony count by inoculation in a nutrient agar culture medium. 

It is necessary to use EBC Microbiology 2.3.3.1 and 2.3.4.2

Detection and enumeration of Escherichia coli and coliform bacteria in potable water for human consumption. Because of the low selectivity, the method is unsuitable for water that has not been disinfected. Descriptors: membrane filtration, selective medium. For full details see: EN ISO 9308-1: 2000 Water quality — detection and enumeration of Escherichia coli and coliform bacteria. Part 1: Membrane filtration method. 

Qualitative detection of microorganisms present and able to grow in wort. Descriptors: wort forcing test, detection of contaminants in wort, haze and CO2 development.

Classification of yeast isolates based on their ability to flocculate or form flocs and to de-flocculate. Descriptors: Hough Method, yeast analysis, determine the flocculation characteristic,  appearance of yeast suspensions.

It is necessary to use EBC Microbology 3.5.3.1

Classification of a suspension of yeast based on its rate of flocculation. Descriptors: Helm Method, sedimentation of yeast, calcium sulphate solution, yeast analysis.

The rapid estimation of yeast fraction in a slurry. Descriptors: Centrifugation of yeast mass, alkaline treatment.

Determination of the concentration of yeast in suspension by means of its dry weight. Descriptors: Dry Weight of Yeast, centrifugation, alkaline solution.

Rapid estimation of the percentage of “viable” yeast cells by counting dead cells. The method is applicable to all samples containing yeast. Descriptors: Methylene Blue / Violet Stain, ratio between total and dead cells.

Rapid estimation of the percentage of “viable” yeast cells by counting dead cells. Descriptors: Fluorescence Stain for yeast analysis,  fluoresce under UV-light, percentage of fluorescing cells.