7.4 / 10.0

Asobu Insulated Portable Brewer KB900 Coffee Maker

With its stainless steel carafe and insulated stainless steel carafe, the coffee maker from Asobu claims a 40 ounce capacity.

Ratings Breakdown


Convenience Score

When evaluating automatic brewers, we also pay attention to how easy it is to assemble and use.


Taste Score

Medium and dark roast coffee grounds were selected according to the judgment of our coffee experts. The dilution ratio and coffee to water ratio were set according to the manufacturer’s recipe. Depending on how much water, coffee and time are used, the taste of your brew can fluctuate.


Ease of Cleaning Score

The ease with which grinds can be removed, the basket can be cleaned, and the carafe can be refilled.


It is convenient and easy to use.


It was difficult to clean the inside of the carafe because of its small opening.

In-Depth Review

Among our top-rated cold-brew coffee makers, this portable Asobu model is one of the highest-rated models. Our experts gave it a Very Good score for taste, the only model in our ratings that’s superior in terms of convenience. Despite not being dishwasher-safe, the Asobu features an insulated stainless steel carafe (which is unusual for a manual model) and brews coffee in 12 to 24 hours, depending on how strong you like it.



Capacity Claimed

According to the product specs, it can hold 40 ounces, which we confirmed during our review.


Period Claimed as Stay Fresh

Freshly brewed coffee can be kept fresh in the refrigerator for a couple of days. However, there is no mention of this metric on the packaging.


Brew Time

Manufacturers estimate it takes between 12 and 24 hours to brew .

As for manual models, the time indicated is the manufacturer’s recommended brewing time, while on automatic models, the listed values are predefined times based on the settings you have selected.


Height: 13 inches
Width: 5 inches
Depth: 5 inches

This is our measurement, rounded up to the nearest inch.

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