Comentario citado sobre Génesis 41:41

ויקבוץ את כל אכל, “he collected all the (surplus) food, etc.” Ibn Ezra is quick to point out that Joseph, of course, did not collect all the food, for had he done so the people would have died. The word כל is not always to be understood literally, as for instance in Genesis 41,56 וכל הארץ באו מצרימה, where it does not mean that the population of entire surrounding countries all came to Egypt. Nachmanides writes that Joseph first collected all the harvest, and released it in the form of rations per family. This is the meaning of the verse 41,35 “let them gather all the produce of the good years that are now coming and stockpile grain under Pharaoh’s authority, etc.” According to this verse, when the time came, Joseph collected every kind of crop including dried fruit, in order to have a stockpile and to prevent waste, [and eventual profiteering. Ed.] It is quite possible that Joseph paid cash to the farmers who handed in their crops in order to encourage them not to hold out on him. By doing this, the entire crop became legally Pharaoh’s, and was not only on loan to him. When the time came, Pharaoh could charge a higher price when the Egyptians bought it back, as no doubt prices had risen considerably by then, driven by international demand.