Our Non-GMO Crystalline Fructose is certified Kosher. Our Non-GMO Crystalline Fructose is certified Kosher by Oregon Kosher. Oregon Kosher began servicing the general kosher keeping public in Portland in 1997 under the leadership of Rabbi Yehuda Oppenheimer. In 2005, Rabbi Zalman Krems was hired as the kashrus administrator for Oregon Kosher. Since then they have expanded significantly, and have been instrumental in increasing the kosher options available locally. Please visit the Oregon Kosher web site for more information: http://www.oregonkosher.org/.