The invention relates to a method for discharge control of a separator (1). The separator (1) comprises an inlet for a dairy product, a first outlet conduit (5) for a first processed dairy product, and a second outlet conduit (6) for a second dairy product. The first processed dairy product having a higher fat concentration than the second processed dairy product. The method comprising the steps of detecting a flow rate of said first processed dairy product in said first outlet conduit (5), controlling said flow rate of said first processed dairy product in said first outlet conduit (5) by regulating an opening degree of a regulating valve (3) connected to said first outlet conduit (5), detecting said opening degree of said regulating valve (3), and discharging said separator (1) when said opening degree of said regulating valve (3) exceeds a predetermined value. The invention also relates to a separator (1) for separating a dairy product into a first processed dairy product and a second processed dairy product.
