Formal — to staff
Supermarket · Convenience · Store
You
すみません、この牛乳の賞味期限はいつまでですか?
すみません、このぎゅうにゅうのしょうみきげんはいつまでですか?
Excuse me, what is the best-before date for this milk?
Romaji: Sumimasen, kono gyuunyuu no shoumi kigen wa itsu made desu ka? / Reply Romaji: Kochira wa maru-gatsu maru-nichi made desu.
Reply
こちらは〇月〇日までです。
こちらは〇がつ〇にちまでです。
This one is until [month] [day].
Gesture & etiquette
Hold up the item in question, slight bow.
Do not open packages to check dates. Be polite and patient.
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