A diffuser (20) for a steam wand (10) for frothing a quantity of milk for the preparation of a beverage, wherein said diffuser (20) is configured to be connected to a steam wand (10) which receives steam from a steam tank and/or from a steam generator, wherein said diffuser (20) comprises a longitudinal axis (22) and a plurality of steam outlet holes (21), each having an outlet hole axis (23), wherein at least one outlet hole (21) has its axis (23) which is skew with respect to said longitudinal axis (22) of the diffuser (20).
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