Asobu KB900 Portable Coldbrew Coffee Maker - A Convenient Cold Brew Solution

Published on Dec. 24, 2023, 8:54 a.m.

Cold brew coffee has become increasingly popular for its naturally sweet, smooth flavor. But not everyone has time to make it from scratch. The Asobu Portable Coldbrew Coffee Maker offers a convenient solution to brew and carry cold brew coffee anytime, anywhere.


The Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker is an innovative cold brew system that includes a brewing carafe and an insulated travel mug. It uses a fine stainless steel mesh filter for optimal coffee extraction. The brewer is made of durable Tritan plastic and stainless steel. The vacuum-insulated mug keeps coffee cold for hours.

With its sleek, compact design in stylish color options, the Asobu cold brewer looks great on any countertop. It’s also portable enough for camping trips or long commutes.

Patent and Global Certification

The Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker is globally patented, underscoring its innovation and uniqueness in the cold brew coffee market. A product with such certifications not only showcases its technological advancement but also boosts consumer trust in the brand.

 Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker


  • Innovative cold brewing system
  • Durable stainless steel and Tritan plastic construction
  • Fine stainless steel mesh filter
  • 40oz vacuum-insulated mug included
  • Keeps coffee cold for 6+ hours
  • Brews smooth, low-acidity cold brew
  • Also makes hot coffee in minutes
  • Compact, lightweight and portable
  • Easy one-button operation
  • BPA-free and rust-resistant

Design - Sleek and Practical

The Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker features a clean, cylindrical shape that takes up minimal space. The brewing carafe and mug have an attractive, contemporary look. Available in colors like silver, black, copper and more, it will match any kitchen decor.

Despite the elegant design, the Asobu Coldbrew is built solid and made to last. The Tritan plastic is BPA-free and the stainless steel resists rust. Buttons are intuitive to use. The compact form factor makes storage easy.

The Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker measures 5.39”D x 5.39”W x 14”H and weighs 2.5 pounds, making it both portable and practical for everyday use.

 Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker

Ease of Use

The Asobu offers straightforward manual operation perfect for cold brew beginners. Simply add coarse ground coffee to the filter, pour water, and steep. There’s no need to program times or temperatures. After 12-24 hours of steeping, a single button press strains the coffee into the mug. It doesn’t get much easier!

Maintenance of the Asobu Coldbrew is extremely straightforward, particularly with its 18/8 stainless steel superfine dual-layer mesh filter and BPA-free Tritan plastic components, which can be quickly disassembled and cleaned, ensuring the coffee maker’s hygiene and longevity.

Brewing Process

The Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker uses an immersion style cold brewing process. It does not support K-cups or other coffee pods. The fine stainless steel mesh filter allows for full coffee extraction and filtration. The Asobu can brew any type of roast, from light to dark. It makes full-bodied cold brew concentrates.

While designed for cold brew, the Asobu can also quickly brew hot coffee in about 3 minutes.

Compared to traditional hot water brewing methods, Asobu Coldbrew’s cold water extraction better preserves the natural flavors and sweetness of the coffee beans, while reducing the production of acidity and bitterness, offering a smoother and more flavorful taste experience.

Coffee Quality

Users praise the smooth taste with low acidity of Asobu cold brew. The cold water process preserves the natural flavors of the beans. The coffee comes out rich and chocolatey, but not bitter or acidic when diluted. The carafe fully extracts coffee oils for quality and color.

Customers consistently praise the rich taste of cold brew coffee made with Asobu, noting its lower acidity and richer flavor profile compared to other cold brews on the market, offering a unique coffee experience.


The Asobu Coldbrew, with its unique cold brew technology, not only simplifies the process of making cold brew coffee but also significantly enhances the taste and quality of the coffee, addressing common issues with traditional cold brew methods such as long preparation times and inconsistent taste.

Additional Features

The Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker focuses on simplicity. It does not include many extra features like timers or temperature controls. The cold brewing process cannot be automated or rushed. The included mug provides excellent insulation to keep coffee cold for 6+ hours.

Asobu Coldbrew not only focuses on the quality and convenience of the coffee but also commits to environmental sustainability. The materials used are eco-friendly and recyclable, and the provided filter is reusable, reducing the use of disposable products and reflecting a commitment to environmental protection.


The Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker is very easy to hand wash with mild detergent and warm water. The simple design has few removable parts, none of which require special maintenance. It is not dishwasher safe.


The BPA-free Tritan plastic and stainless steel construction make the Asobu safe for food use. It carries no risk of electric shock since it does not plug in. There are no reports of safety issues.


No paper filters or other consumables are needed. With occasional cleaning, the reusable steel mesh filter will last for years. The Asobu is designed for longevity and has a lifetime guarantee.

Customer Support and Warranty

Asobu offers exceptional customer service and provides a lifetime warranty for the kb900 Coldbrew Portable Cold Brew Coffee Maker, demonstrating its commitment to product quality and customer satisfaction.

Convenience - Brew at Home or On-the-Go

The Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker offers the quality of coffeehouse style cold brew from the comfort of home. No more waiting in line or paying premium prices.

The included mug allows you to take cold brew anywhere - to work, camping or road trips. At 40oz capacity with 6+ hour insulation, it holds enough to fuel a full day.

For cold brew lovers who want the flexibility to enjoy it anytime, the portable Asobu system is an ideal solution.


Asobu is a leading manufacturer of innovative coffee makers and tea infusers. They design functional, durable products that make brewing simple and delicious.

Use Cases

The Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker is perfect for:

  • Brewing gourmet cold brew at home
  • Enjoying cold brew in the office or on commutes
  • Making cold brew for camping trips, tailgates, beach days
  • Quick cold brew before hitting the road on a trip
  • Saving money compared to buying coffee out
  • Cold brew gifts for birthdays, holidays, weddings

User Feedback Analysis

With over 1,100 customer reviews, the Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker has an excellent 4.5 out of 5 star rating on Amazon. Here is a deep dive into what users specifically like and dislike:

Positive Feedback

Ease of Use
- Customers find the Asobu incredibly simple to operate. The straightforward manual process makes brewing “foolproof” per one user. No programming or complicated steps required.

Brew Quality
- Users are impressed with the “unbelievably smooth” and “absolutely delicious” cold brew. They say it’s notably sweeter and less acidic than hot brew methods.

- Many love the ability to brew at home or take cold brew on-the-go thanks to the included insulated mug. This versatility makes it the “perfect travel companion.”

- For the quality and convenience, reviewers call the Asobu an “unbeatable value” and “worth every penny.” The ability to enjoy coffeehouse style cold brew at home delights users.

Constructive Criticism

Brewing Time
- The 12+ hour steep time is the biggest complaint. Some customers wish for a way to speed up the process, though this would compromise taste.

- A number of reviews mention the 40oz capacity is not enough for larger households or offices. More carafe options would be beneficial.

Fragile Parts
- Some report the small stainless filter ball falling out, especially during cleaning. Taking care when handling removable pieces is advised.

- Multiple users recommend placing the brewer in a tray or bowl to prevent drips during the long brew time. This minor issue is easily solved.

In summary, an overwhelming majority of customers give the Asobu 5 stars for its undeniable convenience and delicious cold brew. The few negatives relate to the nature of cold brewing itself. With stellar ratings for taste, affordability and portability, the Asobu earns its reputation as a top cold brew maker.

Pros and Cons


  • Makes smooth, flavorful cold brew with low acidity
  • Easy to use and clean
  • Excellent insulation keeps coffee cold for hours
  • Quality construction and durability
  • Brews both hot and cold coffee
  • Great value for the price


  • Difficult to store in fridge with mug attached
  • Small parts like filter ball can be lost if not careful
  • Brewing takes patience as it requires 12+ hour steep
  • Not ideal for making large batches


  • Use a flat-bottomed container to catch drips during brewing
  • Take care not to lose any small removable parts
  • Start brewing the night before to have cold brew ready in the morning


At around $50, the Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker is very reasonably priced for the performance it delivers. With the ability to make coffeehouse quality cold brew at a fraction of the cost, it pays for itself quickly compared to buying out. The included mug and lifetime warranty ensure years of use. For cold brew enthusiasts, the Asobu is an affordable luxury.

 Asobu kb900 Coldbrew Portable Cold Brew Coffee Maker


With outstanding taste, simplicity of use and take-anywhere portability, the Asobu Portable Coldbrew Coffee Maker makes it easy for anyone to become a cold brew expert. It’s a highly recommended product for on-demand gourmet cold brew.

We encourage every coffee enthusiast to explore different combinations of coffee beans and brewing times with Asobu Coldbrew to find the unique cold brew coffee that best suits their taste.


Product Name: Asobu KB900 Coldbrew Portable Cold Brew Coffee Maker

Dimensions: 5.39”D x 5.39”W x 14”H

Weight: 2.5 Pounds

Capacity: 40 oz

Material: Stainless Steel, Tritan


  • Vacuum insulated construction
  • Double-walled copper insulated carafe
  • 18/8 rust-free superfine double-wall stainless steel mesh filter
  • BPA free
  • Portable design


  • Requires medium-coarse coffee grind
  • Brews hot or cold coffee
  • Easy to clean

Box Contains

The Asobu Portable Coldbrew Coffee Maker box includes:

  • Cold brew coffee maker carafe
  • 1 stainless steel mesh filter
  • 1 filter release button
  • 1 vacuum-insulated stainless steel travel mug
  • 1 mug lid
  • Instructions manual

How to Use

Follow these simple steps to brew with the Asobu Coldbrew:

  1. Add coarse ground coffee to the filter
  2. Slowly pour cold water over grounds in circles
  3. Seal and let steep at room temperature for 12-24 hours
  4. Press filter release button to drain brewed coffee into mug
  5. Enjoy your smooth cold brew!

Be sure to record any unknown specs as “unknown” per the instructions. Let me know if you would like me to modify or expand any part of the article draft.

Frequently Asked Questions

Q: Does the Asobu KB900 Coldbrew Portable Cold Brew Coffee Maker require refrigeration?

A: The Asobu KB900 Coldbrew Portable Cold Brew Coffee Maker features innovative construction specifically designed for portability and extended storage of cold brew coffee without refrigeration. The double-walled copper-insulated carafe keeps your brewed coffee cold for hours. The brewer itself steeps your coffee at room temperature, eliminating the need to occupy precious fridge space.

Q: What type of coffee should I use for the best results?

A: For optimal cold brew coffee with the Asobu KB900 Coldbrew Portable Cold Brew Coffee Maker, it’s recommended to use a medium-coarse grind of coffee beans. This grind size ensures proper extraction and helps you avoid overly bitter or acidic flavors. If you’re unsure of the ideal grind size, consult with a barista at a specialty coffee shop.

Q: Can I prepare hot coffee with the Asobu KB900 Coldbrew Portable Cold Brew Coffee Maker?

A: Yes! The Asobu KB900 Coldbrew Portable Cold Brew Coffee Maker offers versatility by accommodating both cold brew and hot coffee preparation methods. If you desire hot coffee in a hurry, the brewer can prepare a fresh cup in roughly three minutes.

Q: Is it easy to clean the Asobu KB900 Coldbrew Portable Cold Brew Coffee Maker?

A: Maintaining a clean brewer ensures the best-tasting coffee every time. Luckily, the Asobu KB900 Coldbrew Portable Cold Brew Coffee Maker is designed for easy cleaning. The 18/8 rust-free superfine double-wall stainless steel mesh filter and the BPA-free carafe are easily disassembled and hand washable, ensuring hygienic conditions for your next brew.

Q: What are the capacity and dimensions of the Asobu KB900 Coldbrew Portable Cold Brew Coffee Maker?

A: The Asobu KB900 Coldbrew Portable Cold Brew Coffee Maker holds up to 40 oz of coffee, providing approximately six servings of delicious cold brew. The dimensions of the product are 5.39”D x 5.39”W x 14”H making it easily portable for activities outside the home.


  • Experiment with different beans: One of the joys of cold brew coffee is the ability to explore the unique nuances of different coffee beans. Try using beans with varying flavor profiles like fruity, nutty, or chocolatey to discover your favorite combinations.

  • Adjust the brew time: The standard brew time for cold brew coffee is 12-24 hours. If you prefer a stronger flavor, allow for a longer steep time. For a milder taste, shorten the brewing time.

  • Add your favorites: Cold brew coffee provides an excellent base for customization. After brewing, consider adding your favorite milk, creamer, syrups, or spices. Your imagination is the limit!

  • Take it anywhere: Designed with portability in mind, the Asobu KB900 Coldbrew Portable Cold Brew Coffee Maker is your perfect companion for picnics, camping trips, or even long workdays.