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Kashrut is an integral part of Jewish life and in recent years the Kosher industry has become a multimillion dollar industry. The goals of this website are to provide free information for the Kosher consumer and and objective outlook of Kashrut issues

The Essence of Kashrut

Understanding Kashrut in Modern Times

»  The story of Kashrut.org is deeply rooted in the history and legacy of Rabbi Yitzhak Abadi. Arriving from Israel in the 1950s, Rabbi Abadi studied at the Lakewood Yeshiva under Rabbi Aaron Kotler. After Rabbi Kotler’s passing, Rabbi Abadi became a leading halachic authority in the town

» As a Sephardic Jew of Syrian heritage who studied under primarily Ashkenazic rabbis, Rabbi Abadi was uniquely positioned to bridge cultural divides. Known for his ability to address complex halachic questions, he provided tailored guidance that respected diverse Jewish traditions.

» Kashrut.org was founded in the 1980s by Rabbi Abadi’s son, Rabbi Aaron Abadi. The inspiration came when, as teenagers, Rabbi Aaron and his siblings noticed that American rabbinical supervision primarily served Ashkenazic Jews. This created challenges for Sephardic Jews, especially during Passover, when products like rice and beans (Kitniyot), permissible for Sephardic Jews, were often unavailable due to Ashkenazic customs.

» With their father’s guidance, the Abadi siblings began researching and compiling a list of products suitable for Sephardic Jews during Passover. Initially shared among friends and neighbors, the list’s popularity grew, leading to its dissemination by mail and later by fax. With the advent of the internet, Kashrut.org was established, making the Pesach list accessible online.

» What began with the Pesach list quickly expanded to encompass all aspects of Jewish practice. For over 30 years, our Q&A forum has provided a platform for addressing various Jewish law and practice questions. Rabbi Abadi Senior dedicated his life to teaching authentic, meaningful Judaism, free from unnecessary complications and emotional burdens.

» Due to Rabbi Yitzhak Abadi’s health concerns, Rabbi Aaron Abadi is now continuing this mission. While deeply inspired by his father’s halachic rulings and approach, Rabbi Aaron
offers his own guidance, reflecting a similar dedication to fostering authentic, meaningful, and spiritually enriching Judaism.

» Judaism, as presented on Kashrut.org, emphasizes understanding and appreciating the authentic meanings and values behind customs and rules. We recognize that religious practice is not black-and-white; it’s a spectrum where everyone is on their unique journey toward spiritual growth. Our goal is to foster a non-judgmental environment focused on positive, healthy, and spiritual development.

» In addition to the Pesach list, we now offer year-round kosher guidance, a comprehensive Q&A forum, and educational content on Jewish laws. We aim to differentiate between Torah mandates, rabbinical restrictions, and customs, providing clarity and understanding.

» Looking forward, we plan to introduce a podcast series to further elucidate Jewish laws and customs. Our objective is to build a rich repository of knowledge, covering all aspects necessary for practicing Judaism with authenticity and depth.

Latest Insights on Kosher Living

Must read: Important info about Pesach questions

 This website presents foods that are ok for Pesach even without certification. There is no magic trick. No rabbi blesses the foods. Many of us have this distorted notion that they must ask a Rabbi, get an approval, or otherwise cannot eat the food on...

Changing Prices / Extra Fees

Hi, If a business gives a customer a price and later discovers that the job will cost more than expected, when can the business increase the price? What about change orders, cancellation fees, service charges, “starting at” pricing, dynamic pricing, or fees added...

Firing, Severance, Bonuses & Commissions

Hi, What are the basic halachot for firing an employee? Is severance ever required because of local custom? If a salesperson earns a commission but is fired or leaves before the customer pays, does the commission still belong to the salesperson? What about bonuses...

Deposits, Retainers & Refunds

Hi, If a business takes a deposit or retainer and the customer later cancels, when is the business allowed to keep the money? Does it matter whether the deposit was called “non-refundable,” how much work was already done, or whether the business turned away other...

Hiring Employees from Other Companies

Hi, What is the halacha about approaching an employee who works for another company and offering them a job? Is there a difference between actively persuading them to leave and hiring them when they approach on their own? Does it matter if they have an employment...

Using Hot Water From a Tankless Water Heater on Shabbat

It is fine to use a Tankless Water Heater on Shabbat, because when you turn on the hot water, there’s a delay of two to 12 seconds before the heater goes on. That’s a gramma just like opening your fridge.

Understanding the Spark in a Car Engine on Shabbat

Hi, In the answer about electric and gasoline cars, you explained that internal combustion is not halachic havarah, which concerns a flame or glowing coals. Could you explain why the spark that ignites the fuel in a gasoline engine does not count as havarah on...

A Mechitza with Holes, and the Women’s Balcony

Dear Rabbi Abadi, Something I've been wondering about. Many mechitzas have holes, gaps, or lattice work, so the two sides can still see each other at least partially. If that's the case, what is the mechitza actually accomplishing? Is there a minimum halachic standard...

Second day Yom Tov

Hello Rabbi! I am in Israel but traveling to the US immediately after Yom Tov. I will be arriving while it’s still Yom Tov. Do I have to stay in the airport when I arrive home or is it permissible for me to Uber home? Thanks, Jacob

Sauna and Steam Room on Yom Tov

Is it permitted to use a sauna or steam room on Yom Tov, for someone who sweats heavily or wants to relax? What other activities that might be questionable on Yom Tov are actually permitted, and what common ones are actually forbidden?

General guidance

Hello Rabbi! I have enjoyed using your website. I was wondering if all of your פסקי הלכה  are meant to be understood as לכתחילה?  When would you be more stringent if ever? Thank you for your time. Jacob Levy

Automated trading bot in 24/7 markets on Shabbat

Shalom Rabbi, crypto and other 24/7 markets never close, so an automated trading bot left running keeps buying and selling all through Shabbat, reacting to price moves, opening and closing positions under fixed rules set up before Shabbat, while no one touches it or...

Two more questions, with thanks for all the help

Shalom Rabbi. Thank you so much for the answer on the other post, it really helped. Here are two more places on the site that seem to point in different directions, each with the quotes and links. 1. On...

Tefillin on Chol HaMoed

Shalom Rabbi, what is your position on wearing tefillin during Chol HaMoed? Should they be worn, and if so, with or without a bracha?

Applying sunscreen on Shabbat

Shalom Rabbi, is it permitted to apply sunscreen on Shabbat? Creams in general are fine except if medicated - does sunscreen count as a regular cream or as something medicinal? Thank you.

Buying on credit/debit on Shabbat or Yom Tov.

Shalom Rabbi, In regards of your article about using a credit card, and I asume a debit card on Shabbat. If on Yom Tov you don't have an ingredient for food, or you need bread, wine or any other food necessity or even home necessity for human decency (like soap,...

A few answers on the site that seem to conflict

Shalom Rabbi. I have been finding some contradictions on the site, answers from different years that conflict. Here are four, each with the quotes and links. Which should be followed in each case? 1. On https://kashrut.org/kitniyot-species/#comment-2509 the answer...

Are you allowed to go to the ocean or the beach on Shabbat?

Are you allowed to go to the ocean or the beach on Shabbat? And what about paddle boarding or surfing - what is the actual halacha? Also, when using the ocean as a mikvah, can you wear a bathing suit, or is the ideal to go naked? Thank you.

If a salad in the market says it was prewashed 3 times, do you still have to check it?

If a salad in the market says it was prewashed 3 times, do you still have to check it? Thank you.

Why is parmesan cheese made with animal rennet forbidden?

Why is parmesan cheese made with animal rennet forbidden? The rennet doesn't give any taste to the cheese, and it's only a very small amount. Thank you.

Practical rules for utensils – new, used, and public

Rabbi, can you please clarify the practical rules for utensils? When buying a new pot, pan, knife, cup, or appliance, how do I know if it needs tevilah, a berachah, kashering, or nothing? Does the material matter? Also, what are the rules for using utensils from...