# Ptil Tekhelet

> Amutat Ptil Tekhelet produces and sells Tekhelet strings from the Tekhelet chilazon, the Murex trunculus, so that Jews can once again keep the mitzvah of placing Tekhelet strings on their tzitzit\.

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## Pages
- [Home]()
- [Cart]()
- [Checkout]()
- [Order Summary]()
- [Questions and Answers]()

## Posts
- [Shabbat Tekhelet — Parashat Shelach]()
- [A Tzitzit Undershirt with a Thick String]()
- [A Tallit for Children — Sizes and Recommendations]()
- [Common Mistakes When Buying a Tallit Online]()
- [Colors and Their Meaning in Judaism]()

## Products
- [Halleluyah]()
- [Basic]()
- [T\-Shirt Wool]()
- [T\-Shirt Cotton]()
- [Hallel]()

## FAQs
- [Difference Between Thick and Regular Strings](): There is no halachic difference between thick or regular strings \(both are “kaful shemona” eight strands wound together by “shezira”\) – the only reason we supply both is that some…
- [Length of Actual Strings](): The shamash is 1\.5 meters long before tied\. The strings after knotting will not reach your knees\.
- [Other Styles of Krichot](): There are other methods of tying not mentioned on the web site\.
- [Tekhelet Tzitzit Tied the Traditional Ashkenazi Way](): When it comes to tying tekhelet, there is no “traditional Ashkenazi way”\. Here is how I would look at the issue: 1 \) If he is using Tosafot strings \(i\.e\., 2 full blue and 2 full…
- [Different Ways to Tie White](): Yes there are many, many ties to tie white\. Here are a few that are listed in R\. Tavger’s book on tzitzit “Klil Tekhelet”: Tying methods in white: – Common 7\-8\-11\-13 – Hida…

## Online Library
- [3 בענין גוון התכלת]()
- [A Collection of Recipes for Dyeing]()
- [Mishpacha Response to R' Yisroel Reisman]()
- [שיעור כללי \| התכלת \- בין אובדן המסורת לבין הממצא המדעי \|ראש הישיבה הרב יעקב מדן]()
- [תגובה על המאמר 'התכלת מה יש להפסיד?']()

## Tying Methods
- [Tosafot HaRav Schachter](): The Gemara states that a \<em\>chulya\</em\> consists of three wraps\. It later states, “One should not make fewer than seven and should not make more than thirteen\.” It is not entirely clear whether this statement refers to the number of \<em\>chulyot\</em\>, or whether it qualifies the earlier statement — meaning that a \<em\>chulya\</em\> should contain between seven and thirteen wraps rather than only three\.

Rav Schachter adopts a stringent approach designed to satisfy both possibilities: seven \<em\>chulyot\</em\>, with seven wraps in each \<em\>chulya\</em\>\.
- [Rav Amram Gaon](): According to Rav Amram Gaon, between 7 and 13 \<em\>chulyot\</em\> — groups of three wraps — are tied, alternating between white and Tekhelet, with both the first and final \<em\>chulya\</em\> being white\.
- [Baalei HaTosafot \(Raavad 7\)](): According to this opinion in Tosafot, seven \<em\>chulyot\</em\> — groups of three wraps — are tied, alternating between Tekhelet and white, with the first and final \<em\>chulyot\</em\> being white\. These seven \<em\>chulyot\</em\> are divided among the five double knots of the tzitzit as follows: two \<em\>chulyot\</em\>, one white and one Tekhelet, between each of the first four knots, followed by a seventh \<em\>chulya\</em\> between the fourth and final knots\.

We also refer to this method as \<strong\>“Raavad 7\.”\</strong\> This is because people using two Tekhelet strings among the eight hanging strings often tie their tzitzit according to this method using “Raavad 7” strings — particularly short strings prepared for this tying arrangement — even though this particular tying method is not itself the method of the Raavad\.
- [The Raavad and R' Natronai Gaon](): According to this method, a \<em\>chulya\</em\> is a unit consisting of between 7 and 13 wraps\. There are five knots, with \<em\>chulyot\</em\> between them whose wraps alternate between white and Tekhelet\. The first and final wraps are made with the white string\.

- [The Ben Ish Hai](): The Ben Ish Hai accepts the Rambam's basic principle that the wraps and \<em\>chulyot\</em\> should be made with Tekhelet\. However, he divides the \<em\>chulyot\</em\> among five double knots in order to preserve the numerical calculation given by the Tanchuma, which requires those five knots in order to reach a total of 613\.

## Info Center
- [Tekhelet Blog]()
- [Perek HaTekhelet]()
- [Number of Strings and Tying]()
- [Online Library]()
- [Shiurim and Educational Resources]()

## Product categories
- [Strings](https://www.tekhelet.com/product-category/strings/)
- [Custom Order](https://www.tekhelet.com/product-category/custom-order/)
- [Books \& Education](https://www.tekhelet.com/product-category/book-education/)
- [Talit Katan](https://www.tekhelet.com/product-category/talit-katan-2/)
- [Talit Gadol](https://www.tekhelet.com/product-category/talit-gadol/)

## Optional
- [Sitemap index](https://www.tekhelet.com/sitemap_index.xml)