cheddar cheese making chapter iv the milk producers responsibility aeration of milk during the last five years the subject of aeration of milk has received a good deal of attention according to the old system of caring for milk the patrons of a cheese factory were instructed to cool the milk as quickly as possible very often the milk was not properly cooled and the milk would arrive at the factory sour we now hear cheese makers in structing their pat rons to aerate their milk and not cool it and many devices have been invented for this purpose different styles of aerators by rj8mh8.jpg from » milk bo View Photo