The classical rabbis only considered milk and meat cooked together biblically forbidden, but Jewish writers of the Middle Ages also forbade consumption of anything merely containing the mixed tastes of milk and meat.[18] This included, for example, meat that had been soaked in milk for an extended period.[19] The prohibition against deriving benefit, on the other hand, was seen as being more nuanced, with several writers of the late Middle Ages, such as Moses Isserles[20] and David Segal,[21] arguing that this restriction only applied to the milk and meat of g'di, not to the much wider range of milks and meats prohibited by the rabbis; other prominent medieval rabbis, like Solomon Luria, disagreed, believing that the prohibition of deriving benefit referred to mixtures of all meats and milks.[22]