Improving with Age

By: Rabbi Tzvi Rosen

The hallowed cornerstone of kashrus is בחלב אמו אל תבשל, do not eat a goat in the milk of its mother. The Torah repeats this prohibition, מצות לא תעשה, three times,1 instructing us that we must not eat, cook or derive benefit from a combination of milk and meat. To distance ourselves from an inadvertent mistake, safeguards have been instituted and implemented by Chazal to preserve the integrity of the essential מצות לא תעשה.

Meat and Dairy in the Kosher Kitchen

To this end, every kosher kitchen has two separate sets of pots, pans, cutlery and dishes. Similarly, if two people are eating together at the same table, one eating meat and the other eating dairy, the Shulchan Aruch instructs us to make a distinguishing separation between the two friends to avoid an inadvertent nibble.2

Moreover, the Shulchan Aruch also instructs us to wait after eating meat before eating dairy […]

Hafrashas Challah: When Challah Separation Goes A-Rye

By: Rabbi Mordechai Frankel

Summer 2017

Q: I made some dough in order to bake bread and separated challah. When I wasn’t looking, someone inadvertently took that piece of separated challah and added it back into the rest of the dough. Now that the dough and challah are all mixed together, how should I proceed?

A: Before we discuss how to proceed, let us clarify one point. The word “challah” has two meanings. It is used as the name of a bread which is braided, baked and commonly eaten at Shabbos meals. It is also used to describe a small piece of dough that was separated from a larger batch of dough in order to fulfill the halachic obligation of hafrashas challah. We are using the word “challah” in that second sense.

Let us discuss the case where challah was mixed with dough and can no longer be recognized. If the batch of dough that the challah […]

Eating Chocolate With A Clear “Conch”ence

By: Rabbi Tzvi Rosen

Chocolate, the king of confections, continues to grow in popularity. Chocolate is surely nature’s sweetest combination of fruit and vegetable, sugar and cocoa beans. Kosher chocolate is a delicious study of technology and halachah. Let’s explore the intoxicating world of chocolate.

Over the years, chocolate manufacturing has continued to grow, both domestically and internationally. Chocolate connoisseurship has reached new heights. Believe it or not, the most expensive chocolate today costs in excess of $90 a pound. The chocoholic delights at the sight of Belgian truffles, French bonbons, Swiss chocolate and other chocolate bars that abound. Most major chocolate manufacturers in the U.S. have reliable kosher certification. Some specialty chocolate manufacturers are kosher certified, as well. Cholov Yisroel chocolate in particular has recently seen unprecedented growth. Today, a Cholov Yisroel consumer can feast on a Cholov Yisroel chocolate equivalent without having to compromise on taste or quality.

Chocolate raw ingredients make a long […]

In Whom Do We Trust: Examining Conflicts of Interest in Food Certification

By: Rabbi Moshe T. Schuchman

Summer 2017

The Fundamental Question

Should someone be stigmatized because he has a conflict of interest? Apparently, the mainstream media feels this way and ethics review boards often highlight this as a red flag. People are not the only ones who are challenged by this issue. Organizations whose trust and authority hinge on an image of integrity must deal with perceived conflicts of interest, both on the corporate level and with regard to individual employees.

Food certification agencies, whether they oversee kosher, organic, non-GMO, gluten-free or a host of other popular standards1 must all face the inevitable question: How do they ensure that compliance judgements are based on whether the client is meeting its regulatory requirements, without regard to financial considerations?

Government bodies, such as USDA, FDA and health departments largely avoid this question – on the corporate level – because they are funded independently of the businesses they certify.2 Individual […]

HE-BREWS: A Micro View into A Microbrew

By: Rabbi Tzvi Rosen

Spring 2017

Introduction
If there is a word that can be used to describe the unprecedented growth of microbreweries it is explosive’. There are more microbreweries than ever in the U.S., accounting for $22.3 billion of revenue and 21% of market share. In 2015, the brewery count stood at 4,269 breweries: 2,397 microbreweries; 1,650 brew pubs; and 178 craft breweries. In essence, this dynamic growth has in essence reshaped the playing field, both in quality and new offerings. Of course, the success of the microbrewery is changing the face of the beer industry from traditional to innovative, which obviously impacts the typical kashrus perception of a microbrewery.
It was previously assumed that microbreweries were more purist than their ‘big brother’ counterparts. This means that they would not deviate from the strict rules of the reinheitsgebot-German Beer Purity laws. Is this still true today? And if not, what is the kosher status of a […]

Shiluach Hakan

By: Rabbi Zvi Goldberg

Published Spring 2017

Shiluach Hakan1 (sending away the mother bird before taking her young) is a mitzvah that is infrequently performed. Its reward is the blessing of a long life – similar to the mitzvah of honoring one’s parents. Let’s examine how, when and where to perform the mitzvah of Shiluach Hakan.
“If a bird’s nest happens to be before you…young birds or eggs, and the mother is roosting…you shall not take the mother with the young. You shall surely send away the mother and take the young for yourself, so that it will be good for you and will prolong your days.”2

Possible Reasons for the Mitzvah

The Rabbis ruled that a person may not state that the reason for the mitzvah is compassion for the mother bird. One commentator interprets the Talmud’s prohibition as applying strictly to reciting this in one’s prayers, as if to establish compassion as the definitive, […]

Oven Kashrus: For Yom Tov Use

By: Rabbi Avrohom Mushell

To download and print a handy UPDATED summary of the halachos regarding oven use on Yom Tov, click here.

Summer 2001

Yom Tov celebrations could never be complete without the traditional piping hot delicacies from past generations. However, the kosher homemaker must be well educated on how to prepare Yom Tov meals without fear of transgressing a Torah or rabbinic prohibition.

When mentioning the prohibition of work on Shabbos the Torah writes, “Do not do any melacha (work prohibited on Shabbos).”1 This prohibition applies to melacha performed for food preparation, as well as other non-food purposes. In stating the prohibition of melacha on Yom Tov the Torah writes, “You shall not do laborious work.”2

In addition, when giving the initial command about the Yom Tov of Pesach, the Torah writes, “No work may be done on them (first and seventh day of Pesach), except for what must be eaten for any […]

Sheimos Guidelines

By: Rabbi Moshe Heinemann

Updated June 2024

Download PDF of Chart Here

The Torah forbids discarding objects with innate kedusha (holiness) into the trash or recycling bin. Objects which have innate kedusha must be placed in sheimos, which must be buried.

(Objects that acquire kedusha after being used for a mitzvah do not need to be placed in sheimos but do need to be disposed of with special sensitivity. This is discussed further below.)

SHEIMOS: Disposing of Objects with Kedusha

The following objects are included in this category:

Any of the names of Hashem

Sefer Torah or Sefer Torah cover

Seforim, whether handwritten, printed, photocopied, or downloaded and printed (e.g., Chumashim, Siddurim, Machzorim, Gemara, Shulchan Aruch, etc.)

Bentchers

Pages of a sefer that became detached or fragments of a sefer, even if there is no writing or print on them

A sefer’s cover that has been removed from the sefer

Binding tape that became detached from a sefer

Printed material primarily […]

Balsamic Vinegar: Sour Grapes or Sour Sweet Success

By: Rabbi Tzvi Rosen

Winter 2017

Vinegar is one of nature’s most unique and versatile products. Folklore maintains that vinegar was discovered quite by accident, when wine was inadvertently left to sour. This resulted in the first batch of full-bodied wine vinegar. Indeed, the word ‘vinegar’ is derived from the French word vinaigre, which means sour wine. Euphemistically, the Talmud refers to a ne’er-do-well son of a righteous father as a Chometz Ben Yayin, “vinegar son of wine.”
Folklore aside, vinegar was well known in the time of Tanach. The Torah forbids a Nazir to drink wine vinegar or eat other grape and wine products. In Tehillim,1 Dovid Hamelech asked to drink vinegar when he said, “Vlitzmaie Yashkuni Chometz”. In Megilas Rus, Boaz’s workers dipped their bread in vinegar.2
The Hebrew term for vinegar, chometz (pronounced ch-oh-metz), is similar to the word chametz (pronounced ch-aw-maitz), leavened bread products. This etymological similarity underscores the correlation between […]

Kashrus in the Workplace

By: Rabbi Dovid Heber

The new food trends that have been embraced by society at large have led to a similar preoccupation with food within corporate America. This development has obvious ramifications for the kosher consumer at the office. The following is a guide to dealing with kashrus issues in the workplace.1 While it is impossible to address all the kashrus issues that may arise, this article provides an overview. As with all halacha, when questions arise, one should consult his rav.

1) Eating in a Cafeteria Shared with Co-Workers Who Eat Non-Kosher – Food on a plate, may’iker hadin, may be eaten even when placed on a non-kosher clean table. The Baday Hashulchan2 notes that today, the general custom is to use a napkin (or a placemat or something of a similar nature) when eating on a non-kosher table, even if it is clean.3 Although, in many cases a “heker” is […]

Do Potato Chips Require Bishul Yisroel?

By: Rabbi Mordechai Frankel

Kashrus Kurrents Fall 2016

Q: Do potato chips need to be bishul Yisroel (cooked by a Jew)?

A: The Shulchan Aruch states that there is a rabbinic obligation that food be cooked through bishul Yisroel if both of the following conditions are met: (i) The food is generally not eaten raw, and (ii) The cooked food is something that would be served at a shulchan melochim – a king’s table.1 Since we are no longer ruled by royalty, we cannot observe what is served at a king’s table. The modern-day equivalent to a king’s meal is an elegant meal, such as that served at a wedding.2 This second condition is met whether the food is served at a shulchan melochim as part of the main course or as the dessert. In either case, if the food is generally not eaten raw it needs to be bishul Yisroel.3

The Aruch Hashulchan proposes that potatoes […]

Terumos and Ma’asros

By: Rabbi Moshe Heinemann

INTRODUCTION
Eretz Yisroel has the unique privilege of being the recipient of the Ribono Shel Olam’s brochos throughout the year. Its agricultural industry continues to grow and flourish. Some consumer products imported from Eretz Yisroel, such as Jaffa oranges and grapefruits, are very well known to the American marketplace while other products including clementines, carrots, red peppers, jams, jellies, tomatoes, olives, and pickled products are not as familiar. Finally, there are a host of industrial products like orange oil, lemon oil and parsley that provide a steady supply of raw materials.

Besides all the general consumer kashrus concerns regarding ingredients, processing and certification, there are additional kashrus requirements that apply to foods grown and produced in Eretz Yisroel. For instance, one must be sure that terumos and ma’asros have been properly separated before consumption. Furthermore, one needs to ensure that the fruits do not come from trees that violate the conditions […]

Candy Takes a Shellacking

By: Rabbi Tzvi Rosen

Someone gives you a choice between two items, seemingly identical. Their only difference is that one is dark and dull, the other is bright and shiny. Which one would you choose? A tarnished penny or a gleaming one? The odds favor the latter. Food stylists and advertisers know this well. Look at any magazine spread and see how the careful lighting adds to the appeal of ordinary foods. There is probably no food item that better epitomizes the concept of a ‘shiny’ food than candy. Think glossy lollipops, satiny Mike and Ikes, gleaming M&M’s . . .

Candy manufacturers value eye appeal and they do get their candy to shine. How do they do it? What do they use to achieve their goal? In the industrial world, it is called shellac and in the candy
community it is known as confectioner’s glaze. What is confectioner’s glaze? Where does it
originate? How is […]

Greek Table Olives: Yaft Elokim L’Yefes Vishkon B’SHULCHONEI Shem

By: Rabbi Tzvi Rosen

If one had to choose a single word to describe an olive, it would be ‘versatile’. Olive oil was used daily to light the Menorah in the Bais Hamikdosh. Our first introduction to olive oil was the Shemen Hamishcha, an infused olive oil with a unique blend of spices used to anoint melachim, kohanim and klei haMikdash. Moreover, the yonah (dove) brought back an olive branch to Noach in the ark, and our baseline halachic measurement for eating something significant is a “k’zayis”, the size of an olive.1 The Gemara in Brochos tells us that if one sees an olive in a dream, it is a sign of peace; if one sees an olive branch, it is a sign of Torah scholarship.
There is an opinion in the Midrash that the fruit of the Eitz Hadaas, Tree of Knowledge, was from an olive tree. Additionally, Asher (one of Yaakov […]

Bayamim Haheim Bazman Hazeh, Olive Oil: The Contemporary Industry of Antiquity

By: Rabbi Tzvi Rosen

Olive oil – the liquid gold of the ancients – was touted for its nutritional, medicinal, and cosmetic value. As a fuel, olive oil illuminated the home; as a food ingredient, it was a feast to the palate. Olive oil production is one of the world’s oldest industries which has not changed much over the millennia.
Numerous olive oil brochures of the Mediterranean coastal region proudly claim that the olive oil industry dates back to over 5,000 years. This is demonstrated by the discovery of a 5,000 year old olive oil earthenware vessel in Turkey. Shemen zayis, as mentioned in the Torah, is one of the seven special species of Eretz Yisroel. The Torah requires the purest of pure olive oil, shemen zayis zach, to light the Menorah. Olive oil was an integral part of the service in the Bais Hamikdash. The olive branch is considered a symbol of peace […]

Ten Myths About STAR-K Sabbath Mode Ovens

By: Rabbi Mordechai Frankel

Summer 2016

Myth #1: Every oven that has a Sabbath Mode is certified by STAR-K.

Fact: An oven that has a Sabbath Mode may or may not be certified by STAR-K. In fact, the same company may manufacture some ovens which have a STAR-K certified Sabbath Mode and other ovens with a Sabbath Mode which do not have any certification at all. One can verify an oven is STAR-K certified by consulting the oven’s manual, calling the STAR-K office (410-484-4110), or searching on the STAR-K website.
Reason: STAR-K does not own the copyright to the term “Sabbath Mode” and cannot prevent a company from using those words.

Myth #2: A person who does not intend to raise or lower the oven temperature may use any oven on Shabbos and Yom Tov, and there is no reason to use an oven which has a STAR-K Sabbath Mode.

Fact: When using an oven on Shabbos or […]

Oven Kashrus 101: Using the Same Oven for Meat, Dairy, Fish and Pareve

By: Rabbi Dovid Heber

Spring 2016

If your kitchen is equipped with four ovens – for meat, dairy, pareve and fish – you don’t need to read this article. However, if you do not have such a luxury, you will find various halachic details enumerated below quite relevant.

There are numerous factors involved in an oven “going back and forth” between meat and dairy or using an oven for fish or pareve.1 They include the following:

The oven: Is it clean? Was it kashered? When was it last used?

The food: Is it liquid? Is it covered? When was it prepared?

Does the question arise to do the action l’chatchila (I can do this) or is it only okay bedi’eved (it already happened)?

NOTE: The halachos addressed are based on the psak of HaRav Moshe Heinemann shlit”a, STAR-K Rabbinic Administrator.2 This article addresses issues only involving regular gas or electric ovens. It does note address […]

Kashering Liver

By: Rabbi Moshe Heinemann

Published Spring 2016

Before one is permitted to indulge in kosher Jewish delicacies such as chopped liver, liver steaks and onions, or sauteed chicken livers, raw liver must undergo various processes before the liver is deemed fit for kosher use. First, as with all kosher meat, the liver must come from a kosher species of animal or fowl that has been schechted, slaughtered, in the proper manner prescribed by the Torah. If it is an animal liver, all the fat must be meticulously removed. Furthermore, the Torah forbids eating the blood of an animal or bird. Therefore, it is necessary to extract the blood from the kosher slaughtered meat or liver.
How is the blood removed? With meat, this process is commonly known as kashering and is accomplished by soaking the meat in water, salting it, and then rewashing it. With liver, this method of extraction is insufficient. Since liver contains such a large concentration of […]

When to Recite Hatov V’Hameitiv Over Wine

By: Rabbi Mordechai Frankel

Kashrus Kurrents Spring 2016

Q: When is the brocha of Hatov v’Hameitiv recited over wine?

A: Before drinking a cup of wine, one recites the brocha of Borei Pri Hagofen. Under certain circumstances, if a different wine is subsequently drunk one recites an additional blessing – the brocha of Hatov Vehameitiv.1 The brocha gives thanks to Hashem for blessing the person with a richness of wine. The Hebrew text of the brocha is 2ברוך אתה ה’ אלקינו מלך העולם הטוב והמטיב

This brocha is recited only if a number of conditions are met:

If the second wine is of lesser quality than the first wine, Hatov Vehameitiv is not recited.3 There is one exception to this rule. If the first wine is red and the second one is white (but not the other way around), Hatov Vehameitiv is recited even if the second wine is known to be of slightly inferior quality. This […]

A Crystal-Clear Halachic Approach to Glass

By: Rabbi Tzvi Rosen

Published Spring 2016

Glass is one of nature’s most versatile products created from some of nature’s most prevalent raw materials: sand, soda and lime. In the food industry, glass applications are extremely diverse. Glass can be made into delicate drinking glasses, as well as tough heat resistant ceramic cooktops tops withstanding temperatures over 1000°F.

How is glass made? Basically, the raw ingredients are heated and melted in a large furnace. The molten glass is shaped, blown, or pressed into its desired shape. The finished product is then annealed in an annealing oven and tempered to give the newly formed glass strength and durability.

Although glass can be made to be stronger and less porous than steel, the halachic status of glass remains enigmatic. On the one hand, Chazal recognized the fact that glass is tough, resistant and non-porous. On the other hand, glass raw materials are the same as earthenware which is very porous, extremely […]

STAR-K Meat Team: Humane Standards Accreditation

Published Winter 2016

While the act of shechitah itself is an exquisitely humane form of animal slaughter, the manner in which an animal is handled prior to reaching the shochet should also conform with the Torah’s sensitivity for tza’ar ba’alei chaim (the prohibition against causing unnecessary pain and harm to creatures). Our mission to certify meat products of the highest quality was recently enhanced when two prominent members of our meat team, Rabbi Zvi Holland and Rabbi Tzvi Shaul Goldberg, traveled to Iowa in order to take part in an accredited certification program through PAACO (Professional Animal Auditor Certification Organization). Instructors included world renowned experts in the field of animal welfare such as Dr. Temple Grandin, professor of animal science at Colorado State University and consultant to the livestock industry. She is considered a leading authority on animal welfare.

Consumer Confidence

Published Winter 2016

Often when consumers purchase meat from a butcher shop, or eat at a restaurant or catered event, they are unaware of the original hashgacha that certified the meat as kosher at its point of origin. They place their confidence in the retail establishment’s kosher certification to determine the acceptability of the received product.
Some shoppers have a preference for meat produced by specific companies, trusting that this producer always conforms to a single set of kosher standards. However, unbeknownst to the consumer the company may actually produce their products at different locations, supervised by various hashgochos that do not all share the same standards. In January 2016, Congress repealed country-of-origin labeling laws for packaged meat products, making it more difficult for consumers to track where their meat comes from.
STAR-K certified meat/poultry companies and retail establishments consistently satisfy the requirements set by HaRav Moshe Heinemann, shlit”a, regardless of […]

Checklist for Approving a Shechitah Facility

By: Rabbi Shmuel Heinemann

Published Winter 2016

All the knives of the shochtim must be checked to ensure that they are sharp and without even the slightest ‘pegima’. This must be done before and after the shechitah.
There must be a sink with running water near the place of shechitah for the shochtim to sharpen their knives.
Animals may not be prodded to the shechitah box with a plug-in electric prod.
The head restraint in the box which holds the animal during shechitah must be calibrated so that the animal’s head cannot move during shechitah, but not so tightly that it affects the animal’s breathing.
A system must be in place, to track any animal that becomes a nevaila.
Animals may not be stunned at any time after the shechitah.
No hot water may be used on the animals anywhere in the slaughter house.
No electric current may be applied to the animal at any point, including when used to tenderize the […]

Making the Cut: Assuring that Glatt Really Means Kosher

By: Rabbi Moshe Heinemann

Winter 2016

It is written in our Torah, “Ubosor basodeh treifa lo socheilu” (Shmos 22:30), it is forbidden to eat treif meat. While the expression “treif” (non-kosher) has become the universal connotation for food that is not kosher, in truth, the word treif specifically refers to an animal whose flesh was torn or ripped. Technically speaking, if a kosher species of animal or fowl was attacked by a predator, the meat of the victim may be deemed treif. However, the meat of an animal improperly kosher slaughtered is not treifah, it is called a neveila. Technically, meat of a non-kosher animal species is the meat of a temeiah. Yet, the term “treif” has found its way through the portals of the slaughterhouse, as well as the aisles of the non-kosher meat section of the supermarkets. No matter what the name, all of these categories of meat are forbidden to be eaten.
[...] Read More

Kosher Meat in the Marketplace

By: Rabbi Moshe T. Schuchman

Published Winter 2016

Keeping kosher does not preclude being a locavore,[1] but it definitely presents substantial challenges, particularly for omnivores. Barely a handful of communities in the world today still host facilities where kosher meat is processed from slaughter to salting, and sold from steak to salami, all within close proximity to a kosher consumer base. Like most items in the modern marketplace, it’s much more common to find beef and poultry products traveling vast distances from slaughterhouse to processor, and from distributor to retailer, before reaching the dinner table.

The Old Way
This very untraditional configuration has uprooted the once prominent communal fixtures of shochet and bodek (one who checks for abnormalities that render meat treifah). It’s also a complete departure from an extreme version of locavorism that was practiced in many pre-war European kehilos, which legislated bans on ‘sh’chutay chutz’, not allowing meat slaughtered in a different city […]

Last Dates of Kedushas Shevi’is, Sefichin and Biur 5775/5776

Published Fall 2015

LAST DATES OF KEDUSHAS SHEVI’IS, SEFICHIN
AND BIUR 5775/5776

The
following are ending dates of Kedushas Shevi’is, Sefichin and the
dates of Biur.

ITEM

KEDUSHAS SHEVI’IS/ SEFICHIN UNTIL

IF SEFICHIN APPLIES

[...] Read More

Charting the Course of Shmitta 5776: A Consumer’s Guide to Post-Shmitta

By: Rabbi Dovid Stein

Published Fall 2015

I. INTRODUCTION

The mitzvah of shmitta poses many challenges for those who live in Eretz Yisrael. The main challenge, of course, is for the farmers. However, the consumer has his challenges, as well. It is always preferable to purchase produce from stores that have reliable kosher certification to ensure that there are no halachic problems. If there is no such store available, one must be certain not to transgress the laws of shmitta in the purchase, consumption, or interaction with shmitta produce. These are the different categories of halachos that one has to take into consideration:

1. Sfichin

2. Kedushas shevi’is

3. Schora (doing business) with shevi’is produce

4. Dmei shevi’is (shevi’is money)

II. THE POST-SHMITTA ISSUE

The laws of sfichin refer to a rabbinic prohibition of eating produce that started to grow during the shmitta year, [1] i.e., the plant started to grow from Rosh Hashanah תשע״ה until תשע״ו. This is the opinion […]

Just The Tip Of The Iceberg: A Few Facts On The Shortage of Kosher Iceberg Lettuce

By: Rabbi Sholom Tendler

Published Fall 2015

As many consumers are aware, there has been a shortage of Kosher-certified iceberg lettuce on the market over the last few months. Many people have been wondering why this shortage suddenly happened this year and when it will end. While it is true that iceberg lettuce is generally easier to clean and check than romaine, it still poses some of its own unique challenges. To clarify this issue, it is important to understand some background about how iceberg lettuce is grown, harvested and processed.

HOW ICEBERG GROWS

Iceberg lettuce initially grows open, just like romaine, during the first few weeks of its development, before cupping over and closing up. Once it cups, all of the newer leaves grow inside the closed head. If the time period when it was open was subjected to high levels of insect pressure, insects could crawl inside the open head and become trapped once the […]

Dried Fruit: Nature’s Way of Wrinkling Gracefully

By: Rabbi Tzvi Rosen

Published Fall 2015

It has been called nature’s candy and is a sweet source of nutrition whose popularity is on the rise. Commensurate with its growing popularity is its demand. In today’s global economy, the dried fruit trade literally spans the entire globe – apples from China, prunes from Bulgaria, figs from the Middle East, dates from Tunisia, raisins from South America, and of course apples, peaches, plums, raisins, figs, and dates from the good old U.S.A. Naturally, this growth presents a whole new set of challenges to kashrus agencies. How do they send a mashgiach to supervise date productions in Pakistan, raisin productions in Iran, or plum productions in Bulgaria? Let’s learn about this popular healthy snack alternative.

The Process

Fruit is dried through a process known as dehydrating, which removes enough moisture from the fruit to retard the growth of bacteria and mold while retaining the great taste and nutrients of […]

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