Tuesday, October 16, 2018

halacha - Cold-brew coffee on Shabbos


One can make coffee by soaking grounds in cold water for an extended period.


See http://en.wikipedia.org/wiki/Cold_brew


Is it permissible to start the process on Shabbat, or if not, to start it before, and let the process run into Shabbat? This question concerns the actual soaking; the straining typically done to such a brew is a separate issue.



Answer



It is a matter of extensive debate. The opinion of the Kitzur Shulchan Aruch cited by @Danny Schoemann is agreed upon by the Aruch Hashulchan (OC 318:29). However, the Taz (318:5) infers from the Rema that simply making something edible is not halachically considered cooking when heat is not involved. The Mishna Berura (318:37) rules in accordance with the Taz.


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