Beer brewing machines, in particular devices for flavouring beer brewing liquids; beverage preparation machines in the nature of electromechanical devices for extracting flavouring substances from plant-based aroma bearers in the brewing process, in particular in the beer brewing process; beverage preparation machines in the nature of electromechanical devices for dissolving and separating hops, hop byproducts and other plant-based aroma bearers, in particular for dry hopping, hop boiling and...