Western-style fluffy bread was not present in Japan before Portuguese trade. The introduction through trade also applies to other eastern countries - China was

Western-style fluffy bread was not present in Japan before Portuguese trade. The introduction through trade also applies to other eastern countries - China was exposed through the silk road, India through Portuguese and middle eastern trade. You have similarly surprising culinary events in the West. Tomatoes weren't introduced to Italy until the 16th century, an tomato sauce wasn't a thing before the 18th century - before that, pasta (itself assumed to come from Chinese noodles) was eaten dry with your fingers. Potatoes first arrived in Europe around the same time.