《礼记·郊特牲》
篷豆中盛放的祭品，不是水中所生就是土中所长。这些祭品不敢制作得近乎活人的口味，也不敢讲究品种的繁多，因为这是献给神明享用的，而不是为了叫活人大饱口福。
笾豆之荐，水土之品也，不敢用常亵味而贵多品，所以交于神明之义也，非食味之道也。
The sacrificial offering in the peng beans were made from plants and animals living on earth. These offerings did not attempt to appeal to the taste of living people, and did not attempt to offer a variety of choices, because they were intended for the enjoyment of the gods, and not to be enjoyed by living people.