You know that you can remove the piezo beeper from the microwave, right? Or add a series resistor to lower the volume.
This defeats your training to achieve zero with no beep though, a valuable skill when dealing with any appliance with a timer that beeps.
Most microwaves have a mute function.
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This defeats your training to achieve zero with no beep though, a valuable skill when dealing with any appliance with a timer that beeps.