The wrong type of milk or a non-dairy creamer may result in poor foaming. Clean the milk siphon tube and load the milk container compartment with whole milk for best results. Do not use non-dairy creamer, half-and-half, or non-fat milk. Also, check the milk pinch screw and tighten if necessary, it may be too loose and can affect the foaming process. If poor consistency continues, the foam milk knob may be out of adjustment. Follow the instructions in the Use and Care Manual to adjust the foam milk knob level.