Product List
Overview
Awa-datsu（Foamy） Sponge Series (KS311–KS314) is aisen’s No.1 kitchen sponge lineup by sales volume, trusted in Japanese households for more than 20 years. This long-selling series has shipped over 48 million units in total and has now been fully renewed to match today’s kitchens, lifestyles, and environmental expectations. Designed to create rich, creamy foam with just a small amount of detergent, it helps users wash more efficiently while feeling light and pleasant in the hand.
The renewed series focuses on four core values: foam performance, durability, design, and environmental consideration. Soft and easy-to-grip sponge bodies are combined with carefully tuned nonwoven and net materials to deliver dense foam, gentle yet effective scrubbing, and comfortable use for daily dishwashing. At the same time, biomass polyurethane and Ag+ antibacterial treatment support a more sustainable and hygienic choice for long-term use in the sink.
The lineup includes a soft type (KS311), a special wave type (KS312), a net type with extra foam volume (KS313), and a compact mini 2-piece pack (KS314). Color variations such as soft green and modern grey help the sponge blend into a wide range of interiors—from bright family kitchens to calm, minimalist spaces. With multiple shapes and pack formats, users can choose the best option for plates, glasses, cookware, lunch boxes, and small utensils.
Key Features —
Rich Foam with Less Detergent
The Awa-datsu（Foamy） Sponge Series is designed around the “foaming” performance that consumers value most in the kitchen sponge category. The sponge body and nonwoven layers are engineered to trap air and detergent efficiently, creating a thick, long-lasting lather even with a small amount of liquid soap. This helps users reduce detergent usage while still feeling that dishes are thoroughly and comfortably cleaned.
Improved Durability and Long-Lasting Scrub Power
Newly developed nonwoven materials are used in key items such as KS311 and KS314 to balance softness and strength. They are gentle enough for everyday dishwashing yet tough enough to handle common kitchen soils like light burnt-on residue and oil stains. The structure resists flattening and deformation, so the sponge keeps its shape and scrubbing power for weeks of daily use.
Ag+ Antibacterial Polyurethane for Hygiene
The sponge core uses polyurethane treated with Ag+ antibacterial technology. This helps suppress bacterial growth inside the sponge, supporting a cleaner, fresher tool over time. While regular replacement is still recommended, the antibacterial treatment reduces unpleasant odors and provides extra peace of mind for families who use the sponge many times a day.
Eco-Conscious Biomass Polyurethane (10% Content)
In response to growing environmental awareness, the urethane material in the Awa-datsu（Foamy） series incorporates 10% biomass content. Combined with Aisen’s own eco-mark indication on the packaging, this makes it easier for environmentally conscious shoppers to recognize and select a more sustainable choice without sacrificing usability or foam quality.
Modern Color Design, Including Grey for Minimal Kitchens
Alongside the familiar soft green, the renewed lineup introduces a neutral grey color option. This refined, understated tone reduces “visual noise” around the sink area and is especially attractive for male users or anyone who prefers a simple, monotone kitchen. The calm color harmonizes with stainless steel sinks, black or white appliances, and modern interior styles.
Versatile Shapes for Different Tasks
- KS311 Soft Type (Green / Grey): Standard rectangular shape with a soft nonwoven surface for everyday dishwashing—plates, bowls, cups, and general tableware.
- KS312 Wave Type: A specially processed polyester nonwoven with a wave profile that increases contact points and foam retention, ideal for lightly stubborn food stains while still gentle on dishes.
- KS313 Net Type: A net-covered sponge with a slightly larger, slimmer body. The net structure boosts foam volume and is convenient for washing larger plates, pots, and items that require more “whipping” of the detergent.
- KS314 Mini Soft 2P: Two compact, soft sponges in one pack. Their smaller size is perfect for lunch boxes, baby dishes, cups, and tight spaces around bottle mouths or small containers.
Responding to Multi-Pack Demand
The series also strengthens its 2-piece pack lineup to respond to the popularity of multiple-pack sponges in the market. Households can keep one sponge for dishes and another for sinks or appliances, or simply store a spare for easy replacement. This also supports retailers who want to propose value-oriented options on the shelf.
Backed by Long-Term Market Trust
Since its initial launch in 2003, the Awa-datsu（Foamy） Sponge Series has been supported by households across Japan for more than two decades, reaching over 48 million units shipped. User feedback often highlights strong foam, comfortable grip, and good value for money, making it a reliable everyday choice and a product that many people repurchase regularly.
Specifications
| Item | Details |
|---|---|
| Series Name | Awa-datsu Sponge Series (KS311–KS314) |
| Category | Kitchen dishwashing sponge |
| Materials (main) | Nonwoven fabric (nylon or polyester, depending on model), polyurethane |
| Antibacterial | Ag+ antibacterial polyurethane (sponge core) |
| Biomass Content | 10% biomass polyurethane (urethane part) |
| Launch (Renewal) | From October 21, 2025 |
| Typical Retail Price JP | From approx. ¥170 (tax excluded) |
| Manufacturer | Aisen Industrial Co., Ltd. (Wakayama, Japan) |
| Main Sales Channels | Mass retailers, home centers, online shops |
Testimonials
“Foam quality is excellent—just a little detergent creates plenty of lather. It feels light in the hand and makes daily dishwashing less tiring.”
“The sponge is soft and easy to grip, but it doesn’t collapse quickly. Even after about a month of use, the shape and scrubbing feeling stay stable, so I feel the cost performance is very good.”
“I like the new grey color. It blends naturally with my simple kitchen and does not look too ‘colorful’ or childish. My partner also prefers this neutral design.”
“The net type produces a huge amount of foam and is great for bigger pots and pans. For delicate items I switch to the soft type, so the series covers all my needs with just a few pieces.”
“I change sponges regularly for hygiene. With this series I can use one sponge for around a month, then replace it without feeling wasteful. The Ag+ antibacterial feature also gives me extra confidence.”
