There are different sizes of jugs for frothing milk, the right choice for this is the first step to good milk foam. The 0.35/0.4 liter jugs are ideal for small thermoblock and boiler machines such as QuickMill, Ascaso and Gaggia. For machines with a heat exchanger or a larger boiler such as Rancilio, 0.5/0.6 liters is the most suitable size. 0.75/0.9 liters is most suitable for professional machines and possibly also for a dual boiler machine. We carry 2 models of milk jugs, Ascaso and Motta. The Ascaso model is a standard model made of 0.6mm stainless steel, suitable for both private and professional use. Motta make much heavier pitchers from thicker stainless steel and with a spout that runs more into a spout, making this model very suitable for the latte art enthusiast. Thermometers are also available from Motta for optimal control of the temperature.