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Commercial Chef CHM990B

Countertop Microwave Ovens / Midsized Countertop Microwaves
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CHM990B
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The Commercial Chef CHM990B is a 900-watt midsized countertop microwave. It measures 11.0 in. high, 19.0 in. wide, and 14.3 in. deep, with a turntable measuring 10.6 in. across.
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Description
The Commercial Chef CHM990B is a 900-watt midsized countertop microwave. It measures 11.0 in. high, 19.0 in. wide, and 14.3 in. deep, with a turntable measuring 10.6 in. across.
Dimensions
11 in Height
19 in Width
14 in Depth
Pros & Cons
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Commercial Chef CHM990B
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microwave-ovens

CR's Expert Take

How did it perform in our owner surveys and expert lab testing?

Overall Score

The Overall Score for this model incorporates our expert lab test results, as well as ratings for that brand’s reliability and owner satisfaction from our annual product owner survey of members.
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Current Range of Tested Countertop Microwave Ovens
What goes into the Overall Score?

OWNER SURVEYS

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Predicted Reliability
 /  5
Owner Satisfaction
 /  5
Heating evenness
 /  5
Defrosting evenness
 /  5
Speed of heating
 /  5
Microwaving noise
 /  5
Ease of use
 /  5
Claimed capacity
Usable capacity

About

The Commercial Chef CHM990B is part of the Microwave Ovens test program at Consumer Reports. In our lab tests, Countertop Microwave Oven models like the CHM990B are rated on multiple criteria, such as those listed below.

Heating evenness: This reflects how evenly a model reheated a dish of cold mashed potatoes.

Defrosting evenness: This is based on how well the automatic-defrost program defrosted one pound of frozen ground chuck.

Speed of heating: This score is based on the temperature rise of water heated in the microwave.

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