Collection of samples for the determination of the number of brewers' yeast cells (i.e. for an analysis of physical rather than microbiological characteristics). Descriptors: Sampling for Yeast Cell Counts, Copper sulphate
Aseptic sampling from the top of an open vessel. Descriptors: sampling of thick pitching yeast
Aseptic sampling of thick yeast from a tank. Descriptors: sampling of thick pitching yeast from closed vessels, diaphragm, valve, sample cock.
It is necessary to use EBC Microbiology 2.2.1.2, 2.2.1.3 and 2.2.1.1
Aseptic sampling of water from existing taps. Descriptors: raw water, processed water
Sampling from wells where no tap exists. Descriptors: raw water.
A laboratory method for sterilisation of materials which can withstand moist heat. Descriptors: autoclaving, autoclave
A laboratory method for sterilisation of media with constituents which will decompose if exposed to temperatures above 100 °C. Descriptors: intermittent sterilisation (tyndallisation), bacterial spores, steam chamber.
It is necessary to use EBC Microbiology 2.1.2
A general method for stabilising fluids like media, beer or wort which should not be exposed to temperatures above 100 °C in tightly closed vessels. Descriptors: pasteurisation, kill microorganisms by heat, Pasteurisation Units, tunnel pasteuriser for bottled beer, PU.
It is necessary to use EBC Microbiology 2.1.2
A laboratory method for the sterilisation of large volumes of heat sensitive liquids. The liquid must not contain particles which block the pores of the membrane. Descriptors: sterile filtration, removal of microorganisms, pore size, pressure filtration, vacuum filtration.
Descriptors: hygienic sampling, secondary contamination, microbiological sampling, flaming, steaming, rinsing with alcohol.
Aseptic sampling from tanks or pipelines through rubber diaphragms. Descriptors: hypodermic needle, safest of all methods with regard to aseptic sampling, sample fitting.
Aseptic sampling from tanks or pipelines through plug type sample cocks.
A laboratory method for the sterilisation of utensils which should be kept dry and are resistant to high temperature. Descriptors: dry heat sterilisation, hot dry air
This test is a screening procedure to investigate the effect of plastic tubing upon aroma and taste of beer and for use within problem solvent related to off-flavour and taints. Descriptors: Length of tubing samples, plastic fittings, sample tabs, dispence line adapter.
It is necessary to use EBC Method 13.3, 13.4, 13.7 and 13.8
This method can be used to verify that either under or over filled bottles / cans are being rejected to comply with brand specifications and legal limits.
Procedures to be employed for obtaining representative samples of spent grains for analytical purposes.
The determination of the moisture content of spent grains by loss of mass on drying under specified conditions. Descriptors: mass in g of sample before drying, mass in g of sample after drying, Percentage of moisture lost by predrying, Percentage of moisture found in predried sample.
It is necessary to use EBC Methods 1.1, 4.2 and 12.1
The determination of the total extractable material of spent grains by water using a mashing procedure with action of added enzymes. Descriptors: extract content of the filtrate % Plato, extract content corresponding to the specific gravity of the correction solution % Plato, moisture of the predried spent grains in % (m/m), moisture of the predried spent grains in % (m/m).
It is necessary to use EBC Methods 1.1, 12.1 and 4.5.1
The method has been updated in 2024 to adjust to a new enzyme used in its protocol.
The determination of the soluble extract content of spent grains by extraction with water. Descriptors: extract content of the filtrate % Plato, moisture of the predried spent grains in % (m/m), soluble extract in % (m/m) as is, soluble extract in % (m/m) dry basis.
It is necessary to use EBC Methods 4.5.1 and 12.3
