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Kosher Certified

5 Ways to Check that Dairy Products are Kosher Certified

How to Check that Dairy Products are Kosher Certified

Kosher certification is an essential aspect of food production and consumption for those who follow Jewish dietary laws. The term “kosher” refers to food that adheres to these regulations, as outlined in the Torah. 

Dairy products, like any other food items, must be kosher certified to ensure they meet the strict guidelines set forth by Jewish law. This article will guide you through the process of checking if dairy products are kosher certified, so you can confidently consume them while adhering to your religious beliefs.

1. Understand the Basics of What are Kosher Dairy Products

Before diving into the details of checking for kosher certification, it’s crucial to understand the basics of kosher dairy products, such as milk, cheese, butter, sour cream and more. In general, kosher dairy products must meet the following criteria:

  • They must come from a kosher animal (e.g., cow or goat).
  • They must not contain any non-kosher ingredients.
  • They must be processed using kosher equipment and utensils.
  • They must not be mixed with meat products at any stage of production or consumption.

2. Look for a Kosher Certification Symbol

Common Kosher Symbols

The most straightforward way to check if a dairy product is kosher certified is to look for a kosher certification symbol on the packaging. These symbols are trademarks of various kosher certification agencies, which are responsible for inspecting food production facilities and ensuring that they adhere to kosher guidelines.

Some common kosher certification symbols include:

  • OU (Orthodox Union) – The Orthodox Union (OU) is a prominent American Jewish organization that primarily focuses on providing kosher certification for food products. Established in 1898, it is one of the largest and most widely recognized kosher certification agencies worldwide. The OU symbol on a product’s packaging assures consumers that the item adheres to strict kosher dietary laws, ensuring its suitability for consumption by those who follow Jewish dietary practices. Apart from kosher certification, the OU also engages in community and educational initiatives to support and strengthen Jewish life and values.

  • OK (Organized Kashrut Laboratories) – Organized Kashrut Laboratories, commonly known as OK Labs, is a leading global kosher certification agency. Established in 1935, OK Labs ensures that food products and ingredients adhere to the strict dietary guidelines of Jewish law. With a team of expert rabbis and food technologists, OK Labs inspects, supervises, and certifies thousands of food products worldwide, providing assurance to consumers about the kosher status of their purchases.

  • Star-K (Star-K Kosher Certification) – Star-K Kosher Certification is a globally recognized organization that ensures the compliance of food products, establishments, and production facilities with Jewish dietary laws known as “Kashrut.” By granting its certification, Star-K assures consumers that the product or service adheres to strict kosher guidelines, including ingredient sourcing, preparation methods, and equipment used. This helps Jewish individuals and others who follow kosher diets to confidently identify and consume products that align with their religious and dietary requirements.

  • CRC (Chicago Rabbinical Council) – The Chicago Rabbinical Council (CRC) is a prominent Orthodox Jewish organization that provides kosher certification, religious guidance, and educational resources to the Jewish community. Established in 1951 in Chicago, Illinois, the CRC is committed to upholding and promoting Jewish dietary laws, traditions, and values. With a team of expert rabbis and inspectors, the CRC ensures the highest standards of kosher supervision for food products, facilities, and establishments, while also fostering a strong connection between Jewish communities and their faith.

Keep in mind that there are many kosher certification agencies worldwide, so you may encounter different symbols depending on your location. Always make sure to familiarize yourself with the symbols used by reputable agencies in your area.

3. Check the Ingredients List

In addition to looking for a kosher certification symbol, it’s essential to review the ingredients list of a dairy product. This is particularly important if you’re unable to find a certification symbol on the packaging or if you’re unsure about the reliability of the certifying agency.

Scan the ingredients list for any non-kosher components, such as:

  • Gelatin derived from non-kosher animals – It refers to a protein-based substance extracted from the bones, skin, and connective tissues of animals that do not adhere to Jewish dietary laws, known as kashrut. This type of gelatin is considered non-kosher because it originates from animals that are either not ritually slaughtered or are inherently non-kosher species. As a result, individuals who follow a kosher diet avoid consuming products containing non-kosher gelatin due to religious restrictions.

  • Caseinates sourced from non-kosher rennet – It refers to a group of milk-derived proteins obtained through a process involving enzymes from an impermissible source according to Jewish dietary laws. Rennet, traditionally derived from the stomach lining of certain animals, is used to coagulate milk proteins, resulting in caseinates. When this rennet originates from non-kosher animals or is not prepared following kosher guidelines, the resulting caseinates are considered non-kosher and unsuitable for consumption by those adhering to these dietary restrictions.

  • Mono and diglycerides of unknown origin – Mono and diglycerides of unknown origin are emulsifying agents often used in the food industry to improve texture and stability. They consist of one (mono) or two (di) fatty acid chains attached to a glycerol molecule. Their origin is considered “unknown” when the source of the fatty acids, which can be derived from plant or animal sources, is not specified. These additives help blend ingredients, prevent separation, and extend shelf life in various food products such as baked goods, ice creams, and margarines.

If you’re uncertain about any ingredient, consult a reliable kosher guide or contact the manufacturer for clarification.

4. Be Aware of Dairy Equipment (DE) Designation

Be Aware of Dairy Equipment (DE) Designation

Some dairy products are labeled as Dairy Equipment (DE). Which means they were produced using equipment that also processes dairy products but does not contain actual dairy ingredients. While dairy equipment products are generally considered pareve (neutral) and can be consumed with either meat or dairy meals. Some individuals may choose to treat them as dairy due to potential cross-contamination concerns.

5. Consult a Rabbi or Kosher Authority

When in doubt, it’s always best to consult a knowledgeable rabbi or kosher authority. They can provide guidance on specific products and help you navigate the complexities of kosher certification. Many rabbis and kosher organizations also maintain updated lists of kosher-certified dairy products. Which can be an invaluable resource when shopping for groceries.


Ensuring that dairy products are kosher certified is an essential aspect of maintaining a kosher diet. By familiarizing yourself with kosher certification symbols, carefully reviewing ingredients lists. And seeking guidance from knowledgeable authorities, you can confidently consume dairy products that adhere to Jewish dietary laws. Happy eating!

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