If we look at Act I scene 5 carefully, we can see Lady Macbeth's response to hearing about the prophecy of the witches and her concerns about what might prevent Macbeth from gaining the crown that the witches have promised him. The answer to your question can be found in the soliloquy that Lady Macbeth gives:
Many cheeses today were first recorded in the late Middle Ages or afterâ cheeses like Cheddar around 1500 CE, Parmesan in 1597, Gouda in 1697, and Camembert in 1791, but there is no way to judge what recognizable relation to modern products the cheeses made in those locations bore.
Due to USDA regulations regarding safe cheese production, some varieties of unpasteurized cheese are processed abroad and cannot be imported to the United States. In other areas such as England, France and the Alps, unpasteurized cheese is readily available. This category of cheese is usually more flavorful because it is prepared using lower cooking temperatures. The following cheeses are unpasteurized. There are two types of Gloucester cheese, single and double. Made in England, production of this cheese started as early as 1498 using sheep's milk. Today the cheese is made in much the same manner as it was back then. It is made in large dairies and on small farms alike.