Proficiency testing enables participants to compare their analytical results with others in the scheme, improve analyses as needed, highlight changes in performance over time and provide training for laboratory staff.
It also provide evidence of the quality of their analytical results to customers and auditors.
How is the testing done?
Each month one member of the group sends 4 bottles or cans of beer to other participants for testing. Members of the group do this according to the rota and samples are provided free of charge. Participants analyse it using their usual methods.
Analysis methods available:
- OG*
- PG*
- ABV*
- colour*
- carbon dioxide,
- pH*
- bitterness
- haze;
*minimum requirements for analysis
The results are sent to the scheme organiser who prepares a report comparing performance of each participant; this is confidential and participating laboratories are identified by a code only.