Membran is a alkaline liquid detergent, to be used for the cleaning of UF and MF membranes present in all sectors of food industries, beverage bottling and pharmaceutical sector. The formulation of Membran enables to obtain an excellent cleaning (caustic potash) and sequestering (phosphonate) action with a high penetration, in order to remove residues of proteins and polyphenolic substances from the membranes. Membran is able to easily remove organic residues from membranes, restoring the normal flow levels. Membran can also be used to remove organic contaminations from other sectors of the food industry.