The Sunbeam GCSBSM-423 is part of the Steam irons test program at Consumer Reports. In our lab tests, Steam Irons models like the GCSBSM-423 are rated on multiple criteria, such as those listed below.

Steaming rate: Steaming is calculated over a period of 10 minutes, except for the cordless which are evaluated over a 3 minute period.

Ironing fabric: Based on: ironing a linen table cloth, thermostat set point and temperature swing

Ease of use: Rates a number of factors, including how easy it was to set, fill, and empty the iron, and to see water levels and markings and indicator lights. Other factors include leaking and how well the iron produced steam at low settings.