Process for membrane filtration of mash to produce wort
AssigneeHeineken Technical Services B.V.
InventorChristiaan W. Versteegh
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Abstract
This invention relates to a process for the preparation of wort starting from mash, comprising the separation of spent grain from the mash to form a clear wort in at least one membrane filtration unit having a pore size of the filter not exceeding 2.0 .mu.m, if desired addition of hops to the wort and boiling of the wort.
Claims16
A process for the preparation of wort starting from mash, said mash comprising spent grain and being free from prior filtering, said process comprising introducing said mash into at least one membrane filtration unit for membrane filtration of the spent grain from the mash to form a clear wort having a clarity of from 0.25 to 5 EBC units at 65.degree. C., if desired followed by addition of hops to the wort and boiling of the wort, wherein the membranes in the said filtration unit have a pore size effective to filter the wort from the mash, said pore size not exceeding 2.0 .mu.m.
A process for the preparation of a clear wort from a starting mash, said starting mash comprising spent grain, said process consisting essentially of the steps of providing said starting mash from a unit which produces mash and introducing said provided starting mash into at least one membrane filtration unit having membranes and separating the spent grain from the mash by means of said at least one membrane filtration unit to form a clear wort having a clarity of from 0.25 to 5 EBC units at 65.degree. C., said membranes having a pore size effective to filter the wort from the mash, said pore size not exceeding 2.0 .mu.m.
Dependencies are inferred from the claim text.