Kosher is a Hebrew word which means that this beer (meal or anything) was prepared exactly according to the Moses (Jewish) religion indications, i.e. from barley grown on the field which had a rest every 7th year, was not worked on Saturdays (this concerns also the work on brewing) etc (Thanks A.K) Tell us more
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Gift from "http://rieska.oulu.fi/tol/heikki.html">Heikki Putkonen