In recent years, an increasing number of breakfast cereals are produced with freeze-dried fruit additions – especially red berry ingredients. Whilst dampness often causes problems for dust extraction systems, the fact that red berry dust is highly hygroscopic creates a new and serious challenge for conventional fabric filter-based dust extraction systems. Fortunately the AAF RotoClone W is well proven to deal with breakfast cereal dusts as well as the problematic red berry dust. The RotoClone W also has the advantage of compact size, quiet operation, reliable effective performance and inherent safety. For non red berry dusts and where conventional dry filtration is required, AAF can offer a range of pulse jet bag filters and the state of the art OptiFlo RC cartridge filter.