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Monday 9am - 5pm Tuesday 9am - 5pm Wednesday 9am - 5pm Thursday 9am - 5pm Friday 9am - 1pm

OK Kosher Certification

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OK Kosher Certification

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Established in 1935, OK Kosher is the world’s leading Orthodox kosher certification agency

OK Kosher Certification is well regarded for its unique approach to kosher certification, technology, and innovation in the constantly evolving food and beverage industry. The OK’s instantly recognizable trademark is accepted universally as a representation of our high standards and quality service. Our teams use personal expertise to serve our clients with innovation and superior customer care. In this way, we strive to bring an ever growing selection to the kosher consumer, with uncompromising kosher standards.

10/14/2026

Why do kosher kitchens have two sinks? 🤔

Rabbi Schapiro of the OK explains:

10/12/2026

Does tea need a hechsher? 🍵

Rabbi Teichman of the OK discusses:

09/17/2026

With Yom Kippur around the corner, the OK Kosher staff share some of their best pre-fast tips!

For 7 quick fasting tips, read here: https://www.ok.org/consumers/related-mitzvahs/7-fasting-tips/

09/16/2026

Ever wondered how OK Kosher ensures products are free from infestation? 🤔

Read more here: https://www.ok.org/article/ok-kosher-revolutionizes-infestation-monitoring-control/

09/10/2026

Wishing you all a good, sweet year from all of us at OK Kosher!

Read more in the new Tishrei issue of Kosher Spirit: ok.org/kosher-spirit-issues/?issue=11542 🍎🍯

09/09/2026

What new fruit are you trying for Rosh Hashanah? 🤔

The OK Kosher staff reveal what their choices are for this year!

Read more in the new Tishrei edition of Kosher Spirit:https://www.ok.org/wp-content/uploads/2026/08/OK-Kosher-Spirit-Tishrei-5787-LR-2-FINAL.pdf

08/31/2026

While bees themselves are not kosher, honey is! Find out why from Rabbi Lepkivker of OK Kosher: 🍯

Read more about it on our website: https://www.ok.org/consumers/a-closer-look-ingredients/honey/

08/25/2026

No microwave? No problem. Check out how our RCs stay fed and kosher while traveling internationally. 💡

08/24/2026

Is the brocha on papaya ha’eitz or ha’adamah? 🤔 Fruit from a tree or a tall bush? The answer might surprise you! Check out the full story in the Kosher Spirit: https://www.ok.org/article/whats-the-brocha-bananas-papaya/

08/20/2026

Ordering your food for Shabbos? 🛒 Remember to double check for a hechsher every single time! Just because a product was kosher last year, or looks kosher on your screen, doesn’t mean the item delivered to your house is certified. Formulas change, and certifications do too. Always verify when it arrives!

Address

391 Troy Avenue
Brooklyn, NY
11213

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 1pm

Telephone

+17187567500

Website

http://www.ok.org/, http://www.kosherspirit.com/

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