An induction cooktop comprising: a first induction heater and a second induction heater; a control unit (15; 115); a first switching current generator (17; 117) and a second switching current generator (18; 118), operable by the control unit in subsequent control periods (I 0) to energize the first induction heater and the second induction heater, respectively; wherein the control unit (15; 115) is configured to: at least when a power target to be delivered is above a programmed minimum power threshold, operate both the first switching current generator (17; 117) and the second switching current generator with a first switching frequency (f SW1) in a first control interval (I 1) of each control period (I 0) characterised in that the control unit is further configured to: operate only the first switching current generator (17; 117) with at least two respective different switching frequencies (f SW2, f SW3) in a second control interval (I 2) and in a third control interval (I 3) of each control period (I 0), while the second switching current generator (18; 118) is inactive; operate only the second switching current generator (18; 118) with at least two respective different switching frequencies (f SW4, f SW5) in a fourth control interval (I 4) and in a fifth control interval (I 5) of each control period (I 0), while the first switching current generator (17; 117) is inactive. a first induction heater and a second induction heater; a control unit (15; 115); a first switching current generator (17; 117) and a second switching current generator (18; 118), operable by the control unit in subsequent control periods (I 0) to energize the first induction heater and the second induction heater, respectively; wherein the control unit (15; 115) is configured to: at least when a power target to be delivered is above a programmed minimum power threshold, operate both the first switching current generator (17; 117) and the second switching current generator with a first switching frequency (f SW1) in a first control interval (I 1) of each control period (I 0) characterised in that the control unit is further configured to: operate only the first switching current generator (17; 117) with at least two respective different switching frequencies (f SW2, f SW3) in a second control interval (I 2) and in a third control interval (I 3) of each control period (I 0), while the second switching current generator (18; 118) is inactive; operate only the second switching current generator (18; 118) with at least two respective different switching frequencies (f SW4, f SW5) in a fourth control interval (I 4) and in a fifth control interval (I 5) of each control period (I 0), while the first switching current generator (17; 117) is inactive. operate only the first switching current generator (17; 117) with at least two respective different switching frequencies (f SW2, f SW3) in a second control interval (I 2) and in a third control interval (I 3) of each control period (I 0), while the second switching current generator (18; 118) is inactive; operate only the second switching current generator (18; 118) with at least two respective different switching frequencies (f SW4, f SW5) in a fourth control interval (I 4) and in a fifth control interval (I 5) of each control period (I 0), while the first switching current generator (17; 117) is inactive.