Are All OU Products Yoshon?

The OU certifies both chodosh and yoshon products. This is in accordance with the prevailing custom of Ashkenazi Jews that the prohibition of yoshon does not apply to non-Jewish farmers in lands far from Israel. If one wishes to be stringent, then one should only purchase items that are labeled yoshon. If it is unknown if the previous flour was chodosh or yoshon, Magen Avrohom writes that it is sufficient to clean the equipment and wait 24 hours. The OU requires kashering for yoshon products only if it is known with certainty that the previous production was chodosh.

For a listing of products under OU supervision that are certified Yoshon please enter the word ‘yoshon’ into the product search field at https://oukosher.org/product-search/

The Gerald & Karin Feldhamer OU Kosher Halacha Yomis is dedicated to the memory of Rav Yisroel Belsky, zt"l, who served as halachic consultant for OU Kosher for more than 28 years; many of the responses in Halacha Yomis are based on the rulings of Rabbi Belsky. Subscribe to the Halacha Yomis daily email here.