" The green sponge turned out to be fu (wheat gluten), a high-protein Buddhist staple food often flavored with herbs and spices. The pink-and-yellow cigarette lighters turned out to be yogurts. The lime-green yo-yos were rice taffy cakes bulging with sweet white bean paste.
As for the vermilion-colored mollusks, they were a kind of cockle called blood clams (or arc shell) and, according to Tomiko, "delicious as sushi." The jumbo green sprouts came from the daikon radishes and were "tasty in salads." And the pebbly-skinned yellow fruit was yuzu, an aromatic citrus with a lemony pine flavor that was "wonderful in soup. "

― , Untangling My Chopsticks: A Culinary Sojourn in Kyoto