Consumers should be aware that some appliance companies are advertising "Sabbath Mode" features and are not certified by STAR-K or any other reputable rabbinical group. To be sure that all halachic concerns have been duly addressed, you can check model numbers from specific manufacturers on the STAR-K website or call our office at 410-484-4110.
If a self-clean feature is important to you, please be aware that many new oven models no longer have this feature.
Units certified by the STAR-K generally eliminate all items of concern when the appliance is put into the Sabbath mode. Some appliances may have features that are problematic on Shabbos and Yom Tov. This is especially true for the more expensive models, but may also be an issue for a lower cost models. If at all possible, one should see the model to be purchased, preferably up and running. The STAR-K web site has a check list to be used in evaluating a refrigerator or freezer. Recent features of concern are digital temperature display (which changes when you open the door) either inside the refrigerator, or on the door, and magnetic switches which are sometimes hard to find and defeat.
STAR-K does not recommend kashering a dishwasher from treif to kosher, from chometz to Pesach, from meat to milk or from milk to meat. This is true even if the interior is stainless steel, since the hoses and fittings are made of either plastic or rubber and we do not advise Koshering rubber and plastic.
Dishwashers may not be put on a timer for use on either Shabbos or Yom Tov.
In the modern Kosher kitchen maintaining the Kashrus integrity of a countertop is often an important feature and desired benefit. The ability to Kasher a countertop for Pesach is also of great value to many consumers. Consumers should be aware that not all countertops are the same and prior to purchasing care should be taken to ensure that the countertop choice that is made meets the goals and Halachic standards of the purchaser. See the links below for STAR-K’s kosher countertop advice and certified products.
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