A medieval “cheesemaker” (engraving by Tacuinum Sanitatis)
The cheese it is an ancient food, even prehistoric (https://www.pilloledistoria.it/9672/preistoria/preistoria-la-scoperta-del-formaggio), but the profession of "cheese maker" , intended as cheese seller, it was established only in medieval times, with great success.
In fact, it was only then that the cheeses, after careful processing, began to make a fine show of themselves on the market stalls and in the shops, where they were bought by customers.
The engraving shown in the attached image, taken from Tacuinum Sanitatis , shows a cheesemaker intent on speaking with a customer; the goods, as you can clearly see, are well displayed on the shelves and on the counter, where, on the left, there is the steelyard, the scale that was used to weigh the food before selling it.
It was also in the Middle Ages that aged cheese began to spread among the population as an alternative to the fresh one, which for centuries had been the only one known and consumed; specialty of the Abbeys, it became the most sought after and appreciated dairy product.