Blech

Blech

A blech (from the German by way of Yiddish word for tin or sheet metal) is a metal sheet used by many observant Jews to cover stovetop burners (and for some, the knobs/dials too) on Shabbat (the Jewish Sabbath), as part of the precautions taken to avoid violating the halachic prohibition against cooking on the Sabbath by stirring the fire.

Common use

(Following excerpt with permission of publisher of The Blech Book, by Rabbi Fishel Jacobs.)

* The food [including water] intended for Shabbos use, should be completely cooked.
* The stove’s gas flames or electric coils are turned on. The blech is placed over these. Alternatively, the Shabbos hotplate, which needs no blech (when it is the type which has no knobs to adjust the heat level,) is plugged in.
* The pot is placed on the blech. Note: It is permissible to place another pot on this one.
* The pot on the blech, or another pot which has been placed on it, may be covered with a blanket, clothing, towel, cloth etc. to keep the heat from dissipating. One side of the pot should be left partially uncovered.

During Shabbos, the pots are removed according to need. After removal, it is permissible to return the pot onto the blech, following these guidelines:
* The pot should be removed from the blech with the intention to replace it afterwards and held at all times, not leaned onto any surface. (A heavy or unwieldy pot may be partially leaned on a surface, while being held, if there is no alternative.)
* The food must be in the same pot, completely cooked, and has retained at least some of its original heat.

The permisibility of blech (and unblech, below) and the acceptable manner of their use is questioned by several modern Kashruth organizations [See, for example, "Warming Food on Shabbos" by Rabbi David Cohen, [http://oukosher.org/index.php/articles/single/5259/ Rabbi David Cohen] , stating in part "Even if food is fully cooked, hot, and not wrapped, Chazal legislated that it may not be put into the fire or onto a blech." But See Ovadia Yosef, "Yehave Daat", Vol 2, # 45 [http://www.megavolt.co.il/articles_H/blech.html] ; and Pinchas Toledano, "Fountain of Blessings", Vol. 2, Page 67.] , however, the use of a Blech to re-heat food on the Sabbath remains very popular among observant Jews. [ [http://kosherfood.about.com/od/glossaryofkosherterms/g/blech.htm Blech Definition - What is a Blech - Glossary of Kosher Terms ] ]

Unblech

An unblech, or "K'Deira Blech" (lit. "pot blech", commonly referred to as "water blech"), is also used to heat up pre-cooked food on the Sabbath, but utilizes different halakhic mechanisms than a standard blech. An unblech consists of a shallow metal pan filled with hot water and covered by another metal pan, and thus is akin to a pot of warm food for halakhic purposes. As such it may be more flexible than a standard blech for halakhic purposes. However, the temperature of an unblech is limited by the boiling point of water and is not as hot as a typical blech.

References

ee also

*Chamin
*Cholent
*Kli rishon-sheni-shlishi

External links

* [http://www.rabbijacobs.com Rabbi Fishel Jacobs, author of The Blech Book—The Complete & Illustrated Guide to Shabbos Hotplates, site includes relative material.]
* [http://www.aish.com/shabbatlaws/selfstudycourse/Cooking_and_Baking.asp Cooking and Baking on the Sabbath] from [http://www.aish.com/ aish.com]
* [http://www.milechai.com/judaica/kdeirah.html An image of a blech (commercial website)]
* [http://www.star-k.org/kashrus/kk-cooking-ovenshabbos.htm Star-K Kosher's "Oven Kashrus" including discussion regarding the blech]
* [http://www.jewz.com/homestyles/homestyles.php?text=shabbat_customs_tips.txt Jewz.com's Shabath tips page, includes a paragraph on the use of the blech]
* [http://www.dailyhalacha.com/displayResult.asp?txtSearch=blech&rgSearch=1&Submit=Go Daily Halakha articles (and audio files) regarding the use of the blech]
* [http://happyhomepage.com/blechs.shtml Pictures of different types of blechs (commercial website)] from [http://blechs.com Blechs.com]


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  • blech — blech·num; blech·noid; …   English syllables

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  • Blech — Blech, Metall, das verhältnißmäßig sehr dünn ist, gewöhnlich durch Walzwerke so zubereitet. Es gibt Eisen , Kupfer , Zinn , Zink etc. B.e; das dünnste Zinn , Zink etc. B. nennt man Folie, das von Gold Blattgold …   Herders Conversations-Lexikon

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