Koreans use it when drinks, food, or the weather feels cold in temperature.
Yes. The polite form "차가워요 (chagawoyo)" is appropriate in restaurants and cafés. You can also say "너무 차가워요 (neomu chagawoyo)" for stronger emphasis.
You can say "It's too cold" — 너무 차가워요 (neomu chagawoyo) or "Please make it less cold" — 덜 차갑게 해주세요 (deol chagap-ge hae-ju-se-yo) to request adjustment.
차가워요 means "It's cold." 차갑다 (chagapda) = to be cold, 어요 (eoyo) = polite. Common expression when drinking cold beverages, eating cold noodles, or feeling weather. Commenting on temperature shows enjoyment.
1. Cold drinks: Iced coffee, juice, water.
2. Cold food: Naengmyeon, ice cream.
3. Weather: Cool temperature.
It's cold. Refreshing, right?
Too cold. Please make less cold.
Cold! The best! (Casual)
It's cold. Temperature is just right. (Formal)
• 너무 차가워요 (neomu chagawoyo) - Too cold
• 시원해요 (siwonhaeyo) - Refreshing / cool
• 뜨거워요 (tteugeowoyo) - It's hot (opposite)