A beverage sterilisation device comprising: a housing defining an inner space, said housing having a first and a second end, an electrically insulated fluid path defining conduit extending through said inner space from said first end to said second end, a first electrical conductive electrode (20,38) having a first part (24,47) and a second part, said first part (24,47) being positioned adjacent to said fluid path at said conduit, said second part extending substantially perpendicular to said first part (24,47), a first electrical conductive counter electrode defining together with said first electrical conductive electrode (20,38) a first capacitor of a first specific capacitance, a second electrical conductive electrode (22,40) having a third part (30,48) and a fourth part, said third part (30,48) being positioned adjacent to said fluid path at said conduit, said fourth part extending substantially perpendicular to said third part (30,48) and away from said second part of said first electrical conductive electrode (20,38), a second electrical conductive counter electrode defining together with said second electrical conductive electrode (22,40) a second capacitor of a second specific capacitance, said first electrical conductive counter electrode and said second electrical conductive counter electrode being short-circuited by an electrical connection, a conductive device electrically connected between said first electrical conductive electrode (20,38) and said second electrical conductive electrode (22,40), a pair of trigger points, a first trigger point being defined at said second part of said first electrical conductive electrode (20,38) and remote from said first part (24,47) thereof and a second trigger point being defined at the first electrical conductive counter electrode opposite to said first trigger point, an electrical activation circuit (56, 58) for short-circuiting said pair of trigger points and for causing an electric field to propagate from said first trigger point and along said fluid path. a housing defining an inner space, said housing having a first and a second end, an electrically insulated fluid path defining conduit extending through said inner space from said first end to said second end, a first electrical conductive electrode (20,38) having a first part (24,47) and a second part, said first part (24,47) being positioned adjacent to said fluid path at said conduit, said second part extending substantially perpendicular to said first part (24,47), a first electrical conductive counter electrode defining together with said first electrical conductive electrode (20,38) a first capacitor of a first specific capacitance, a second electrical conductive electrode (22,40) having a third part (30,48) and a fourth part, said third part (30,48) being positioned adjacent to said fluid path at said conduit, said fourth part extending substantially perpendicular to said third part (30,48) and away from said second part of said first electrical conductive electrode (20,38), a second electrical conductive counter electrode defining together with said second electrical conductive electrode (22,40) a second capacitor of a second specific capacitance, said first electrical conductive counter electrode and said second electrical conductive counter electrode being short-circuited by an electrical connection, a conductive device electrically connected between said first electrical conductive electrode (20,38) and said second electrical conductive electrode (22,40), a pair of trigger points, a first trigger point being defined at said second part of said first electrical conductive electrode (20,38) and remote from said first part (24,47) thereof and a second trigger point being defined at the first electrical conductive counter electrode opposite to said first trigger point, an electrical activation circuit (56, 58) for short-circuiting said pair of trigger points and for causing an electric field to propagate from said first trigger point and along said fluid path.