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    Faster than the dryer: this is how the Japanese laundry trick works
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Faster than the dryer: this is how the Japanese laundry trick works

As soon as the weather turns, the laundry comes back inside. The drying rack goes up in the living room, the clothes take a day and a half instead of an afternoon, and towels come out stiff and faintly musty. Running the dryer for every load gets expensive fast. In Japan, where small apartments and humid weather make indoor drying a daily reality, households have long used a simple way of arranging the rack that speeds things up, and when German testers at CHIP tried it, the laundry really did dry faster.

It doesn’t need a gadget. It only changes where each piece goes on the rack.

How the Japanese “arch” method works

Laundry dries when the surrounding air can carry moisture away from the fabric. On a typical rack, pieces are hung wherever there’s space, so long items block short ones and damp air gets trapped in the middle.

The Japanese method, often called the arch method, fixes that with one rule: the longest pieces go on the outer ends of the rack, the shortest in the middle. Seen from the side, the hanging laundry forms a curve, like an upside-down arch. That shape creates a channel underneath where air can rise and circulate, pulling moisture up and away from every piece instead of letting it pool in the center.

Setting up the rack


  • Long items, such as pants, long dresses and bath towels, go at the two outer ends.
  • Medium items, like shirts and T-shirts, go next, working inward.
  • Short items, such as socks, underwear and washcloths, go in the middle.
  • Leave space between pieces so nothing overlaps.

Japanese laundry expert Yuichi Nakamura points to two other details that matter as much as the arch: spread each piece out to give it the largest possible surface, and hang laundry as high as you can, since the air near the ceiling is warmer. Shirts dry faster with the collar turned up and the buttons undone; pants dry faster hung open, rather than folded over a single bar.

The room matters too

Where the rack stands changes the result. A warm room, around 68°F, works much better than a cold spare room, because warm air holds more moisture. A small fan pointed at the rack keeps air moving and speeds drying even more.

The catch with indoor drying is humidity. All that water has to go somewhere, and in a closed room it ends up on windows and walls. Open a window for a few minutes several times a day while the laundry dries, and aim to keep indoor humidity between about 40 and 60 percent to avoid mold and that musty smell.

What it won’t do

CHIP’s testers found the method helped, but it doesn’t turn a rack into a dryer. A very large load or thick items like jeans and heavy towels will still take time, and the arch needs a little more space than piling everything on. For those days, there’s a second trick worth knowing: tossing a large, dry towel into the dryer with the wet load absorbs moisture and shortens the cycle.

How the laundry is clipped matters as much as where it hangs, which is why the two holes in a clothespin have a purpose too.

Long on the outside, short in the middle, a window cracked open. Faster laundry, no dryer. That’s the trick.