This is a rather lengthy but simple analysis to determine the shelf life of bottled beer. The method is used to analyse for the presence of contaminants that can grow in beer and their ability to spoil the bottled product.
Cloudy beers
The shelf-life test involves direct incubation of the untreated, sealed sample with accompanying visual inspection of the biological states of a beverage (slime formation, creamy skin, agglomerates) and a final microscopic analysis.