Tag Archives: Kashrus Kurrents

Using a Warming Tray on Shabbos

Using a Warming Tray on Shabbos

By: Rabbi Mordechai Frankel

Kashrus Kurrents Winter 2009

Q:       I would like to buy a warming tray that has been manufactured for the Shomer Shabbos community. It is a glass covered warming tray and has a variable temperature dial with a removable knob. It can be set at a minimum temperature of 110 0F and a maximum temperature of 230 0F. It has a sticker on it stating that it is intended solely for the reheating of cooked foods and is not intended to be used for cooking. How may this tray be used on Shabbos?

A:  In order to answer this question, one must have an understanding of the Rabbinic prohibitions of shehiyah and chazarah.  The parameters of these two prohibitions differ for Ashkenazim and Sefardim.  This response will explain the halachah as it applies to Ashkenazim.

Shehiyah:  Shehiyah is the act of placing food on an open flame before the onset of Shabbos […]

Using a CPAP Machine on Shabbos

Using a CPAP Machine on Shabbos

By: Rabbi Mordechai Frankel

Kashrus Kurrents Winter 2010

Q: My doctor has told me that I have sleep apnea, and advised me to use a sleep apnea machine.  Can this device be used on Shabbos?

A: Sleep apnea is a disorder characterized by abnormal pauses in breathing or instances of abnormally low breathing during sleep.  Obstructive sleep apnea, the most common form of the disorder, is caused by the relaxation of the walls of soft tissue in the airway of the throat during sleep.  Common symptoms include loud snoring, restless sleep, and daytime sleepiness.  Sleep-disordered breathing is associated with an increased risk of cardiovascular disease, stroke, high blood pressure,arrhythmias, diabetes, and sleep deprived driving accidents.1  Recent studies have shown that sleep apnea affects about 16% of men and 5% of women between 30 and 65 years of age.[...] Read More

Can a Kohain Visit a Science Museum

Can a Kohain Visit a Science Museum

By: Rabbi Mordechai Frankel

Kashrus Kurrents Summer 2011

Q: Can a Kohain enter the Maryland Science Center, located in downtown Baltimore?

Getting a Handle On Your Faucet

Getting a Handle On Your Faucet

By: Rabbi Zvi Goldberg

Winter 2012

Torah-observant Jews know that turning on the hot water faucet during Shabbos causes cold water to be heated, which transgresses the melacha of bishul, cooking. What many don’t know is that even turning on what you think is cold water can be a problem – if it’s a one-handled faucet.

Let’s first analyze why using hot water causes cold water to be heated.  In a typical home setting, cold water arrives from the city supply under pressure.  Turning on the hot water faucet allows this cold water into the hot water tank which, in turn, forces out the hot water already in the tank.  Since the water in the tank is typically more than 120oF (the minimum temperature for bishul on Shabbos), the incoming cold water is immediately heated by the hot water that is already in the tank. 1

In a one-handled faucet, both hot and […]

Brachos for Breakfast

Brachos for Breakfast

By: Rabbi Dovid Heber

For the most updated Cereal List click here.

Published Winter 2012
Updated Winter 2019

STAR-K has researched breakfast cereals for the past 30 years and has published Brachos lists and halachic guidelines for these products based on the psak of Rabbi Moshe Heinemann, shlita, STAR-K Rabbinic Administrator. It is with great pride that STAR-K has begun certification of the following three cereals distributed by Nestle in Israel: Cheerios, Fitness, and Crunch Cereals. The hashgacha is coordinated by our newly expanded Israel office. The products bear a STAR-K symbol and are pareve, bishul Yisroel, and yoshon. The brocha rishona on all three cereals is mezonos and the brocha achrona is al hamichya.

Guidelines for Men’s Haircuts

Guidelines for Men’s Haircuts

By: Rabbi Mordechai Frankel

Kashrus Kurrents Spring 2012

Q: When my barber works on the area around my ear and temple, what I am allowed to let him do and what should I stop him from doing?

Which Materials May Be Kashered (and Which May Not)

Which Materials May Be Kashered (and Which May Not)

By: Rabbi Mordechai Frankel

Kashrus Kurrents Summer 2012

Q: I have a number of utensils which need kashering through hagalah (immersion in boiling water). Which materials may and may not be kashered?

A:   A fleishig utensil which comes into contact with hot milchig food or a milchig utensil which comes into contact with hot fleishig food needs to be kashered before further use.  There are a number of methods for kashering, dependent upon the manner of contact between the utensil and the food.  Perhaps the most common form of kashering is hagalah, in which the utensil is immersed in boiling water.

Metal
The Torah tells us that a vessel may be kashered if it is made from one of six metals:  gold, silver, copper, iron, tin or lead.1  There are other metals and alloys which were not in common use at the time of Matan […]

Looking Through the Liquor Glass

Looking Through the Liquor Glass

By: Rabbi Tzvi Rosen

Fall 2012

GO TO LIQUOR LIST

Unquestionably, the latest operative terms in the burgeoning liquor industry are ‘transparency’ and ‘innovation’. Never before has there been more consumer enlightenment, courtesy of the information highway known as the Internet.  Moreover, new venues have been introduced to tweak standard products or present new ones, so that distilleries can gain a greater share of the market.  What previously was assumed to be a glatt kosher choice in the liquor cabinet has now become not so glatt.

Tearing Kriah at the Kosel

Tearing Kriah at the Kosel

By: Rabbi Mordechai Frankel

Kashrus Kurrents Winter 2013

Q: I am going to Israel and will be visiting the kosel (Western Wall). I know that it is customary to tear kriah upon seeing the kosel, but what exactly is the procedure?

A:  The Shulchan Aruch paskens that when a person sees the cities of Judea he should say,
ערי קדשך היו מדבר and tear kriah.1  However, it is not customary to do so, possibly because we do not know exactly where the ancient cities of Judea are located.2  The Shulchan Aruch continues that when a person sees the Old City of Yerushalayim he should say, ציון היתה מדבר שממה , and then tear kriah again.3  Rav Shlomo Zalman Auerbach zt”l writes that even nowadays, one should tear kriah upon seeing the Old City.4  However, Rav Moshe Feinstein […]

Sabbath Mode and Sabbath Compliant Appliances

Sabbath Mode and Sabbath Compliant Appliances

Updated January 2023

Appliance manufacturers, with the aid of modern technology, have designed kitchen appliances to be safer and more efficient while incorporating various features to enhance operation. However, the integration of this technology may pose a challenge to their proper use on Shabbos and Yom Tov.

THE INTRODUCTION OF SABBATH MODE

In 1997, a historic technological project was launched between a major appliance manufacturer and a kosher certification agency. Whirlpool Corporation (manufacturer of KitchenAid) approached STAR-K to help modify their ovens for use on Shabbos and Yom Tov. Prior to that time, many of their appliances did not conform to halachic guidelines.

Following some adjustments, a successful mode was developed. Whirlpool called this “Sabbath Mode” and was awarded a patent in 1998 for this concept.

STAR-K kosher certification on appliances falls into one of two categories:

1. Sabbath Mode Appliances – these are models that have unique software/hardware specifically […]

Bracha On a Newly Flowering Tree: Birchas Ha’ilanos Guidelines

Bracha On a Newly Flowering Tree: Birchas Ha’ilanos Guidelines

By: Rabbi Mordechai Frankel

Spring 2009

Q: There is a bracha which is recited once a year upon seeing a newly flowering tree. I have a number of questions regarding Birchas Ha’ilonos:

When is the optimal time to say this bracha?  Does the bracha have to be said during the month of Nisan? 

What rules apply concerning the location of the person when saying the bracha?  How far away can you be from the tree when saying the bracha?  Can you be inside a house or other structure?  Can you be in a car?  Is it necessary to be at a site where there is more than one tree?

What limitations are there regarding the type of tree over which this bracha may be recited?  Does the tree need to be fruit bearing?  How old should the tree be?  Can the tree be orlah (less than three […]