Casual — to friend
Cultural · Dining
関東は蕎麦文化、関西はうどん文化って、よく言われるんだよ。 — It's often said that Kanto is soba culture, while Kansai is udon culture. (Cultural · Dining, Casual — to friend, JLPT N3)
You
関東は蕎麦文化、関西はうどん文化って、よく言われるんだよ。
かんとうはそばぶんか、かんさいはうどんぶんかって、よくいわれるんだよ。
It's often said that Kanto is soba culture, while Kansai is udon culture.
Romaji: Kantou wa soba bunka, Kansai wa udon bunka tte, yoku iwareru n da yo. / Reply Romaji: Naze sou natta no? Mizu ya komugi no chigai kana?
Reply
なぜそうなったの？水や小麦の違いかな？
なぜそうなったの？みずやこむぎのちがいかな？
Why is that? Water or wheat differences?
Gesture & etiquette
If discussing at noodle shop, point at both menu sections (if dual-menu shop). Smile playfully—East-West rivalry is friendly. Recommend trying both styles back-to-back: '関東のかけそばと、関西のかけうどん、両方一度に頼んでみない？'.
Edo (Tokyo) developed soba in the Edo period as a quick fast-food for laborers. Osaka had abundant wheat from western Japan + soft water suited for udon. Tsuyu (broth) differs too: Kanto uses dark soy + bonito (visually dark), Kansai uses light soy + konbu (visually clear). 関ヶ原 roughly marks the boundary. Both regions claim theirs is superior—a beloved East-West rivalry.