Described is a method for preparing a purified liquid containing carbohy¬ drates. The method comprises the steps of: hydrolysing starch to a dex- trose equivalent (DE) of 10 or above, thus obtaining a liquid of carbohy¬ drates removing a heavy weight sludge fraction from the light weight liquid of carbohydrates using centrifugation filtering the remaining liquid of carbohydrates, the filter being capable of retaining coarser particles while allowing particles with a diameter less than 2μm to pass perform- ing membrane separation on the filtered liquid of carbohydrates using a membrane having a pore size at 2μm or below and recovering a perme¬ ate stream of purified liquid containing carbohydrates. Also disclosed in a plant for performing the method.
