Why Do Japanese People Put Ice Cubes in Their Noodles? (The Summer Survival Food)

Last updated: March 20, 2026

Hot Weather, Cold Food

In many Western countries, noodles like pasta or chicken noodle soup are always served piping hot. But Japan has brutally hot and humid summers. To survive the heat, Japanese people do something brilliant: they eat their noodles ice cold!

Somen (The Ice Water Noodles)

The ultimate summer food is “Somen.” These are incredibly thin white wheat noodles. Families boil them for just two minutes, then cool them down and serve them in a large glass bowl filled with cold water and floating ice cubes! You dip them into a savory, cold soy-sauce broth before eating.

Hiyashi Chuka (The Chilled Ramen)

If you love Ramen, you must try “Hiyashi Chuka” (Chilled Chinese Noodles). It is a colorful plate of cold ramen noodles topped with strips of egg, cucumber, ham, and tomatoes, covered in a tangy sesame or vinegar dressing. When restaurants hang up a sign saying, “We started Hiyashi Chuka,” it means summer has officially arrived!

Zaru Soba (The Bamboo Tray)

You can also eat traditional buckwheat noodles cold. “Zaru Soba” is served on a flat bamboo tray. It is simple, healthy, and incredibly refreshing when you lose your appetite from the summer heat.

Slurp the Heat Away

Just like hot ramen, you are absolutely allowed (and encouraged) to slurp these cold noodles loudly! Slurping helps you inhale the cool flavor and cool down your body. It is the most delicious way to beat the Japanese summer humidity.

The Hot Noodle Engineering (Related Articles)

While cold noodles are perfect for summer, Japan is also the birthplace of the most famous hot, instant noodles in the world. The engineering behind them will blow your mind!

1. The Psychological 3 Minutes

Did you know the universal rule of waiting exactly 3 minutes for Cup Noodles is actually a psychological trick? The inventor, Momofuku Ando, discovered that 3 minutes is the perfect amount of time to make you “wait and crave,” engineering the noodles to taste scientifically more delicious!

👉Why not make them in 1 minute?

Check out: “Why Do Cup Noodles Take Exactly 3 Minutes? (The Japanese Invention of Hunger)”

Why Do Cup Noodles Take Exactly 3 Minutes? (The Japanese Invention of Hunger)

2. The Floating Secret　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　If you look closely inside a Cup Noodle, you will see a gap underneath the noodles. This is a brilliant feat of Japanese “Monozukuri” (craftsmanship). The middle suspension acts as a shock absorber during transport and cooks the noodles evenly like a convection oven!

Why are they floating?