It's no coincidence that so many refrigerators are equipped with timers. As surprising as it may seem, some people prefer to install a timer rather than buy a kosher refrigerator.
Indeed, a kosher refrigerator must satisfy two contradictory requirements.
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Opening the door should not have a direct influence on the operation of the appliance.
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The temperature of the food should not vary too much.
Some models, to avoid any risk with the first requirement, disable the appliance's temperature regulation. The temperature is no longer controlled. This results in a significant degradation of food quality.
Other models leave it to the manufacturers to address the second requirement. The designer is best positioned to modify the control computer program so that opening the door during Shabbat has no visible consequences and the refrigerator's operation is not significantly altered.
Gorgeous!
Except this program is secret. I saw documentation explaining how such a device works, hidden away. Opening the door causes all the appliance's functional data to be blocked (compressor speed, fan activation, etc.). As long as the door is open, this data remains constant. After the door is closed, the refrigerator resumes normal operation. If you observe the appliance from the outside, opening the door doesn't cause any visible phenomenon: no increase in electrical current, no fan starting up. But is it really hidden?
The timer elegantly solves both requirements
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Opening the refrigerator door when it is switched off does not disturb it at all.
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By adjusting the number and duration of the extinguishing cycles, you can ensure that the food reaches an acceptable temperature, especially if you use a thermometer.
As you browse the site, you'll notice that the SHAON-SHANA significantly improves upon the good old timer. Let's take a look!
The timer is the best solution for
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respect Shabbat
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control the refrigerator temperature