A process for producing colourless vat milk is proposed, in which(a) vat milk is subjected to an ultrafiltration and in the course of this a first permeate P1 and a first retentate R1 are produced(b) the permeate P1 is subjected to a reverse osmosis and in the course of this a second permeate P2 and a second retentate R2 are produced,(c) the second retentate R2 is treated with an adsorbent and in the course of this a further retentate R2* is produced,(d) the resultant retentate R2* is combined with the retentate R1 and the permeate P2.
