Nottingham’s Navigation Brewery has called on filtration and water treatment supplier Fileder to help improve the efficiency of its keg filling operations.

The brewery, which opened in 2012, said it experienced difficulties with the slow process of changing the plate and frame filters in their existing set up and the amount of batch waste generated.

They called on Fileder who demonstrated how bag filtration would help improve the process and after a successful small-scale trial, the company supplied the Spectrum Size 4 stainless steel bag housing together with a Spectrum Economic 1 micron and Premier 5 micron bag.

This system is installed on the final filtration kegging line and, depending on the beer being produced, utilises either the 1 or 5 micron bag to remove dry hops, flavour additives and sediment, whilst leaving the crucial yeast and bacteria in place.

Head brewer Dom Flynn, explained: “The Spectrum bag filter has increased our keg filling speeds, reduced batch wastage and minimised the labour required at the end of the brew.

“The only test data is a lot of empty kegs, happy drinkers and pub landlords, not to mention happy brewers”.