Shulchan Aruch Yoreh Deah 298:1
אין אסור משום כלאים, אלא צמר רחלים ואילים עם פשתן. אבל צמר גמלים וצמר ארנבים ונוצה של עזים וכל שאר מינים, מותרים בפשתן.
The only thing forbidden because of Shaatnez is sheep and ram wool with linen; camel wool, rabbit wool, goat hair, or other similar items are permitted with linen.
The rule that only sheep and ram wool ...
Per Shatnez Testers of America and Chabad.org no.
When we speak of wool, we are only referring to wool obtained from
sheep or lambs. Other materials, such as camel's hair, mohair, angora,
cashmere or alpaca wool, present no shatnez problems.
HaRav Yitzhaq Yosef in his Qitzur Shulhhan Arukh, Yalqut Yosef (Orahh Hayim 27:4) states (my translation/emphasis):
מותר להסתכל בראי כדי לראות אם התפילין של ראש מונחין במקומן. ומכל מקום אין צריך להקפיד בזה כל כך, ודי שיבדוק כפי מה שיש ביכולתו שהתפילין יהיו מונחין במקומן, שלא יטה לצדדין. וכן צריך שיהיה הקשר של התפילין (של ראש) באמצע.
It is permitted ...
According to the current (updated February 7, 2014) version of the Star-K's "Insect Checking Quick Reference Guide for Mashgichim", corn doesn't need to be checked for infestation. It does say that the corn should be stored sealed and in a cool, dry area to prevent infestation. [And, of course, if the corn is obviously infested, don't eat it.] It doesn't ...
An individual's mezuzah has to be checked twice in seven years. A community's mezuzah has to be checked twice in fifty years. Yoreh Deah 291:1.
You have to check them even if you don't assume they are pasul. In fact, even if you check three mezuzos, you still have to check all of the others (Pischei Teshuvah 291:1).
Rav Aaron Abadi writes:
"Don't listen to the rumors. There is no need to check for Shaatnez on any article of clothing unless you're sure there's shaatnez in there.
For all those who need to know....
Shaatnez according to some Rishonim requires "Shua, Tavi, and Nuz all together." We don't have that today. So according to those Rishonim, today's Shaatnez is ...
http://shatnez.n3.net/ Here are a few:
Carpets/Rugs: May require testing. Wool carpets (wall-to-wall) and area rugs may be backed or reinforced with linen. Non-woolen rugs and carpets are not a problem. Services are available at most shatnez laboratories for those who wish to have their carpets tested.
Linen and Linen-look fabrics: Require testing.
The Chofetz Chaim sighed deeply and said, "I too am a person who makes
mistakes. You know that I sell my books. Sometimes the binder
misplaces a page, or a page might be missing or have unclear print.
Even though I am careful to check every book before it is sold, there
You should CYLOR for a final ruling, but it seems (Shach and Taz to YD 84:13, Chochmat Adam 52:9, see also Rama OC 553:3 (however see Shu"t R Akiva Eiger 76)) there should be no problem blending the fruit as the intention is to prepare the food not to nullify the insects. Once the insects are cut up, they are nullified in the mixture (YD 101:6).
First of all raw eggs do not need a hechsher according to CRC, Denver Vaad HaKashrut and others. The presence of a hechsher on the box does not appear to be a factor in two major treatments of the topic.
In a discussion on blood in eggs, the OU explains that, due to modern production methods, any blood spot found in eggs will never develop into an embryo ...
This depends on the Hashgacha. Some Hashgachot on broccoli are only signing off on the purposefully present ingredients and processing equipment, but are not addressing the requirement for Bedika (Triangle-K for example on a lot of frozen produce (See here)). Others are signing off that they indeed already performed a Bedika (typically via Chazaka) and ...
See this answer. Those rabbis who prohibit aborting a fetus even if it has Downs, Tay-Sachs, or the like, strongly frown upon testing for such things if there's nothing you can do about it -- or you'll put yourself in a situation where it will take superhuman strength to follow halacha.
As Rav Herchel Schachter notes at approximately the 26:30 mark in this shiur, Rav Shlomo Zalman Aurbach clarified the halacha of checking twice every seven years, that it is not the case nowadays.
The twice-in-seven-years requirement was stated when the situation was heat extremes. But nowadays, where we have air conditioning in the summer and steam in the ...
According to Rabbi Moshe Vaye popcorn kernels should be checked.
A. Strain, over a white surface, in a strainer with large holes and
check whether any small insects are found among the debris that fell
B. Spread out a handful of kernels at a time on the palm of
your hand, and look for insects among the kernels or round holes in
Rav Binyomin Zilber (Oz Nidberu) saw me using the mirror in yeshiva for this purpose and called me over to chastise me. He insisted that using one's fingers was sufficient and it was better not to use a mirror.
Computers are used quite effectively for checking for errors in STa"M. Your understanding of how it works is basically correct. The scanned text is compared with a standard which is known to be kosher. The program would have a variety of "standard" versions for different writing styles and column formats.
To correct for differences in handwriting, a ...
Although the other answers mentioned that cashmere may be mixed with linen as it comes from the Kashmir goat, practically this is not true. That is because cashmere by itself is a very expensive material. Each goat can only produce about 4 ounces of fibers a year and it is estimated that fleece from 4 to 6 animals would be needed for a sweater. Because of ...
FWIW, in Eretz Yisroel, there are vacuum packed bags of grains under Badatz supervision. They tend to be slightly more expensive but are "נקי מחשש תולעים". I saw some in stores near the Mir (in the Beit Yisrael neighborhood of Jerusalem), and would guess they're widely available in chareidi neighborhoods.
If your concern is to prevent bugs being born in ...
See this list of "dried spices that are acceptable for kosher use without specific Kosher supervision" - Allspice is literally the first entry. Many spices are considered to not require supervision when by themselves. Blends require either supervision or a thorough spec sheet to ensure that the blend only contains spices (some blends use flavorants, sugars, ...
The Aruch HaShulchan (291:1) says that in a place which is exposed to the elements and moisture or rot are common, one should check more often than twice in seven years and at least once a year. He notes that this was his personal practice.
The unequivocable answer is - no! if they can not be seen by the naked eye, they are not considered to exist period. Interesting I just saw another great article by the author of the photogrey issue on this exact topic - with dozens (if not more) of sources and here's the link.
This rabbi Spitz must really know his stuff!
"אהיה קרוי 'בור' ומצות תפילין אקיים"...
נוהג היה הגאון רבי יצחק יעקב ווייס זצ"ל, בעל ה"מנחת יצחק", להתרפא במעיינות הישועה שבעיר קרעניץ. שם גם קשר קשרי-ידידות עם עוד גדולי ישראל שאף הם באו לפוש ולהתרפא, וביניהם מרן הגרי"ז מבריסק זצ"ל.
מאותם ימים, רגיל היה בעל ה"מנחת יצחק" לספר שהרב מבריסק נוהג היה להתבונן בראי קטן כדי לראות האם התפילין-של-ראש מונחים ...
There is an organization in Lakewood New Jersey that gives a week-long training every once in a while. It is called NCSTAR, WWW.SHATNEZ.N3.NET
I know people from other states that arranged to stay in Lakewood for the week and get trained.
Their contact info is:
You can read a short article about them here.
He would have to check it if he is going to make a bracha on it.
One solution to this problem is too declare ownerless your share in the Shul's tallit thereby making the tallit a borrowed tallit which is not obligated in tzitzit. This way it doesn't matter if they are invalid and you won't be making a bracha anyway.
(Sources: Mishna Brurah 13 sk 15, 8 sk ...
The OU kashrus site writes https://www.ou.org/torah/halacha/hashoneh-halachos/sat_08_25_12/
"46:43 Small worms are sometimes found in fish, in the brain, the liver, the intestines, the mouth and the gills. This is common in such fish as pike and herring. When this is common, one must check for them. Small insects can also be found on the outside of a fish, ...