Kosher Professionals
Ta’tah Gavar
Rabbi Eli Gersten
When a cold item is placed onto a hot surface, Halacha tells us to view the cold item as though it were hot, even though the item remains cold. Conversely, if a hot item is placed on a cold surface, we view the hot item as becoming cooled down. However, in this case we say that until it cools down, there is a kdei klipa transfer of ta’am. This concept is brought in the Gemara Pesachim (76a) and referred to as ta’tah gavar (the bottom surface overpowers).
What Bracha Does One Recite on a Granola Bar?
If one does not understand the process involved in creating a granola bar, one could study the ingredient panel a hundred times and still not be able to answer the above question. However, through our access to the companies that produce these bars we are privy to information that is important in resolving this issue.
Lo Basi Ella L’orer: Bishul Akum
Questions of bishul akum surface all the time, and it is important when reviewing products and ingredients to be mindful of the issues of bishul akum. The following are some recent issues that have been discussed in the office relating to bishul akum.
Bitul
A summary of the OU’s position about using bitul in Kosher food productions.
Sake and Miso
Mailbox י”ז תמוז אשר במהרה יתהפך לנו ליום שמחה כבוד הרבנים החשובים שליט”א תמוה לי קצת הנושא אודות חשש בישול גוים – כי ראיתי הרב בעלסקי שליט”א כותב שכל מתחלה נעשה הבישול רק כדי לעשות ממנו דבר שאינו עולה על שלחן מלכים אז אין כאן חשש בישול עכו”ם [וזה ההיתר שנוקטים האו יו ברייז קריספיס, […]
Constant Review Is Required: An Inspection Report
When this plant was first set up as a kosher facility, it was known that they had a non-kosher plant that produces assorted products on the same campus. Of course, the issue of steam return condensate was brought up. It turned out that condensation from the non-kosher factory was not being returned to the boiler so there was no problem to certify the kosher division.
Recycled Ingredients
A basic phenomenon in chemistry plays a crucial role in industrial kashrus. When two chemicals react with one another, one will be used up before the other. The chemical used up first is called a “limiting reactant” and the chemical which is not used up is an “excess reactant”. Often the excess reactant is recovered, purified, and used again in another production.
Fish and Meat
The Gemara Pesachim (76b) teaches that one may not cook fish and meat together since this combination is considered a sakana. Shulchan Aruch (Y.D. 116:2-3) adds that one may not even eat meat after fish or fish after meat unless one eats and drinks in between1. Rama adds that one should not cook open meat and fish in the same oven because of raicha (aroma), though bidieved we say that raicha lav milsa. Magen Avrohom (O.C. 173:1) questions whether this sakana still exists today, however the minhag is still to be machmir.
How Pas Yisroel is Created
The Mishna in Avoda Zara (35b) tells us that Chazal forbade pas akum. The Gemara (36b) explains that this was done as a geder to avoid intermarriage. However Tosfos1 bring a Yerushalmi that says that a later Bes Din removed this issur. The exact extent of this retraction is a disagreement between the Mechaber and the Rama. While all agree that bread baked by an akum for personal use is still forbidden, there are differing opinions as to how careful one must be to avoid eating pas palter, bread baked by an akum for the purpose of selling.
Drinking Coffee on the Road
Considering the long days that Mashgichim put in and the hundreds of miles that they drive daily, it is no surprise to hear that most mashgichim rely on coffee to keep them going. While caffeine is a plus for those who work in an office, for those out on the roads those 10 minute coffee stops are quite literally life savers. Let us take a moment to understand if there are any kashrus concerns with picking up a coffee while traveling on the road. This question was presented to the OU poskim Rav Schachter and Rav Belsky.