{"id":12004,"date":"2026-07-05T00:08:51","date_gmt":"2026-07-04T21:08:51","guid":{"rendered":"https:\/\/ph.yhb.org.il\/en\/?p=12004"},"modified":"2026-08-03T14:45:45","modified_gmt":"2026-08-03T11:45:45","slug":"17-05-08","status":"publish","type":"post","link":"https:\/\/ph.yhb.org.il\/en\/17-05-08\/","title":{"rendered":"08. Avoiding Sha\u2019atnez in Practice"},"content":{"rendered":"

The overwhelming majority of garments sold today raise no concern of sha\u2019atnez<\/em>, since they are made from synthetic materials or cotton. Thus, if a garment\u2019s label states that its main material is synthetic, cotton, or any other fiber that is neither wool nor linen, there is no need for concern. In rare cases, such a garment may have a wool or linen ornament or be sewn with linen thread; in even rarer cases, it may contain both linen thread and a wool ornament. This possibility is so remote that it may be disregarded. Moreover, according to most authorities, no prohibition applies unless the wool and linen are joined to one another (above, 6). One should therefore read the label, and if it does not list wool or linen, there is no concern of sha\u2019atnez<\/em>.<\/p>\n

For wool and linen garments as well, it is sufficient for the buyer to examine the label. If it states that the garment is made of wool or linen together with other materials, but does not list both wool and linen, the garment does not require testing. Labels are sometimes inaccurate, either because manufacturers are not required to list wool or linen content of only one or two percent, or because, on rare occasions, the wrong label is attached to a garment. In practice, however, as long as the label does not state that the garment contains both wool and linen, the likelihood that it contains sha\u2019atnez<\/em> is far below a mi\u2019ut ha-matzui<\/em> \u2013 a frequency common enough to require concern \u2013 and it need not be tested. The same is true of ordinary wool suits and coats, since the possibility that linen has been added is too remote to warrant concern.<\/p>\n

Very expensive wool suits and coats, however, require greater caution. Some are hand-sewn with linen thread, reinforced around the collar or buttons with sturdy linen fabric, or fitted with linen interfacing in the shoulders and chest. Since linen is found in a mi\u2019ut ha-matzui<\/em> of such garments, any very expensive wool suit or coat must be tested. It is likewise proper to test a linen suit, since wool may have been used in its collar.<\/p>\n

At a sha\u2019atnez<\/em> laboratory, garments are examined under a microscope, enabling trained specialists to identify wool, linen, and other fibers by their distinctive structures. As a rule, these laboratories take into account even the stringent views of individual authorities, both in defining sha\u2019atnez<\/em> and in determining when testing is required.<\/p>\n

The rules discussed above apply to individual buyers. Clothing retailers, however, must take greater care to avoid exposing the public to sha\u2019atnez<\/em>. Whenever their experience with the merchandise gives them some reason to suspect that a shipment of wool or linen garments may contain sha\u2019atnez<\/em>, they should send a representative sample for testing, even if the likelihood is below a mi\u2019ut ha-matzui<\/em>. If the sample contains no sha\u2019atnez<\/em>, the remaining garments in that line need not be tested. When their experience provides no basis for concern, no testing is necessary; when the concern is substantial, as with expensive suits and coats, the entire shipment should be tested.<\/p>\n

Buyers should preferably purchase wool or linen garments from God-fearing retailers who take care not to expose their customers to sha\u2019atnez<\/em>. Nevertheless, when such garments are purchased from an ordinary store, only especially expensive wool suits and coats and linen suits require testing.[8]<\/a><\/sup><\/p>\n

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[8]<\/a>. The Mishna lists types of garments purchased from non-Jews that require inspection because they were sometimes made with sha\u2019atnez<\/em>, as well as garments that do not require inspection because the wool was sewn with hemp rather than linen thread (Mishna, Kilayim<\/em> 9:7). The Yerushalmi adds that once linen became readily available everywhere, all wool garments required inspection (Yerushalmi, Kilayim<\/em> 9:7). Accordingly, SA rules that one who purchases a wool garment from a non-Jew must inspect it to determine whether it was sewn with linen thread. In places where linen is more expensive than hemp, however, no inspection is necessary, since it may be assumed that hemp thread was used (SA YD 302:2).<\/p>\n

In recent generations, the garment industry has become vastly more sophisticated and diverse, and the clothing trade now spans countries and continents. It is therefore no longer possible to establish fixed rules for every type of garment. Contemporary authorities rule that each category must instead be assessed according to the halakhic principles of majority and minority (see Igrot Moshe<\/em>, YD 1, end of \u00a772; Ha-sha\u2019atnez Le-halakha<\/em> 7:2\u20133). When the likelihood of sha\u2019atnez<\/em> reaches the level of a mi\u2019ut ha-matzui<\/em> \u2013 a frequency common enough to require concern \u2013 testing is required rabbinically. Only in pressing circumstances, when testing is entirely impossible, may one be lenient. If the likelihood is lower, no testing is required.<\/p>\n

As explained in Peninei Halakha: Kashrut<\/em> 23:5, note 6, some maintain that a mi\u2019ut ha-matzui<\/em> is a frequency of approximately 25\u201349 percent, while any lower frequency is considered an uncommon minority (Rivash). Others maintain that only a frequency below ten percent is considered uncommon (Mishkenot Ya\u2019akov<\/em>), and this is the standard ruling in practice. It appears that these percentages should be calculated separately for each category of garment: wool coats apart from coats made from other fabrics; ordinary wool suits apart from luxury wool suits and suits made from other materials; wool sweaters apart from other sweaters; and so forth.<\/p>\n

It appears, however, that clothing retailers have a greater responsibility to investigate, for three reasons. First, an error on their part could cause many customers to violate the prohibition, and matters affecting the public require greater caution. The same principle applies to a public mikveh, where all halakhic opinions are taken into account because it serves the public (see Yabi\u2019a Omer<\/em> 6, YD \u00a715). Second, retailers are better positioned to investigate. Their familiarity with the merchandise enables them to recognize when there is cause for concern, they can readily ask the manufacturer which materials were used, and they can have a representative sample tested. Since the leniency not to test when the likelihood is below a mi\u2019ut ha-matzui<\/em> is based on the burden involved, retailers, for whom testing is less burdensome, bear a greater responsibility to investigate (see Peninei Halakha: Kashrut<\/em> 20:4; 38:9, note 8). Third, whether testing is considered unduly burdensome depends on the scale of what is being examined. A sho\u1e25et<\/em> need not spend several hours examining a single animal. If a few hours of work would benefit many animals, however, he would be required to investigate even remote concerns. The same applies to sha\u2019atnez<\/em>.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

The overwhelming majority of garments sold today raise no concern of sha\u2019atnez, since they are made from synthetic materials or cotton. Thus, if a garment\u2019s label states that its main material is synthetic, cotton, or any other fiber that is neither wool nor linen, there is no need for concern. In rare cases, such a […]<\/p>\n","protected":false},"author":64,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[226],"tags":[],"class_list":["post-12004","post","type-post","status-publish","format-standard","hentry","category-17-05"],"yoast_head":"\n08. Avoiding Sha\u2019atnez in Practice - Peninei Halakha<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ph.yhb.org.il\/en\/17-05-08\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"08. Avoiding Sha\u2019atnez in Practice - Peninei Halakha\" \/>\n<meta property=\"og:description\" content=\"The overwhelming majority of garments sold today raise no concern of sha\u2019atnez, since they are made from synthetic materials or cotton. Thus, if a garment\u2019s label states that its main material is synthetic, cotton, or any other fiber that is neither wool nor linen, there is no need for concern. 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