The process for producing sugar products from grapes consists of treating a solution of liquid rectified concentrated must by chromatography, to separate at least one sugar contained in it. The plant for producing sugar products from grapes comprises a plurality of columns connected together in series, each column implementing in succession all the steps of the chromatographic process, but implementing steps of the process which are different from the other columns. A recirculation step is provided in passing from one step to the next.
