Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [techeles]

techeilet, techeles; a blue wool put to various Jewish uses

2
votes
1answer
36 views

What are the various opinions as to what the Techeiles is?

Several opinions claim to have rediscovered Techeiles. This question refers to Ptil Techeiles and Radnyzer. What are their opinions as to the Techeiles, and are there any others?
2
votes
0answers
45 views

Radzyner Ticheiles Dye Process

BSD I am dabbling in research on the topic of the rediscovery of the Ticheiles dye. Of course, one of the historic attempts at a potential Chilazon was discovered by the Radzyner Rebbe (Rav Gershon ...
2
votes
2answers
75 views

Why is the colour כחול ('blue') not mentioned in Tanach?

The colour כחול is not mentioned in Tanach. Given it's wide usage in later hebrew texts, why does it never feature in Tanach? Do any sources pick up on this? (There is a different debate about what ...
1
vote
1answer
34 views

The cloak full of techeiles is the Me'il?-Korach's issue

During the reading of this week's parsha ( Tetzaveh) I noticed that the Me'il is referred to as a cloak complete of techeiles. Then I remembered that Korach had an issue with a beged that was full of ...
2
votes
1answer
53 views

The will of the Maharsham

Does anyone know where to find the tzavvah of the Maharsham? It has been refenced a bunch of times as being a proof that the Maharsham wore techeiles since he asked to be buried with techeiles in his ...
2
votes
0answers
102 views

Is there a transgression on this tzitzit tying? [closed]

Suppose someone bought some tkhelet for his tallis, wanting to tie the Rambam tzitzit, which requires 1 half tkhelet/half white string and 3 white strings, so once it goes through the hole of the ...
2
votes
1answer
57 views

Where does the Radzyner say that Misheyakir is referring to Rambam's shita in Techeilet?

The gemara brings an opinion that the earliest time for saying Shema in the morning is when you can distinguish between the techeilet and white in tzitzit. I have heard that the Radzyner Rebbe ...
6
votes
1answer
93 views

Why don't Korach and his followers ask if an all Techeiles Beged is Patur from Techeiles?

רש"י במדבר ט"ז:א' ד"ה דתן ואבירם. ... מֶה עָשָׂה? עָמַד וְכָנַס ר"נ רָאשֵׁי סַנְהֶדְרָאוֹת — ... וְהִלְבִּישָׁן טַלִּיתוֹת שֶׁכֻּלָּן תְּכֵלֶת, בָּאוּ וְעָמְדוּ לִפְנֵי מֹשֶׁה, אָמְרוּ לוֹ טַלִּית שֶׁכֻּלָּהּ שֶׁל תְּכֵלֶת ...
1
vote
2answers
191 views

Why specifically the chilazon?

The Torah commands us in Bamidbar 15:38 to attach tzitziyot on the four corners of our garments, and insert a thread of blue in each tzitzit. Speak to the children of Israel and you shall say to ...
5
votes
1answer
393 views

Can I revert from using techeiles back to using all-white strings?

I used to wear all-white tzitzis, as is the more "universal" custom. Some time ago, I was convinced to start wearing a blue thread in them, to fulfill the commandment in the Torah to insert a psil ...
1
vote
2answers
391 views

Advantages/Disadvantages between Murex v.s. Radzyn Tekhelet

What halachic advantages are there in purchasing tekhelet strings dyed by the murex snail as opposed to tekhelet strings dyed by the cuttlefish? Are Radziner cuttlefish-dyed strings acceptable?
2
votes
1answer
113 views

Source that tekhelet was known to run

This blog post from Ben's Tallit Shop made me start looking for a source: Let me warn you that the Radzyn techelet dye runs. Your hands will turn blue, your tallit may get a bit smudged and the ...
1
vote
4answers
362 views

Arguments FOR Radzyner Techeiles

Mostly everyone agrees that the organization Ptil Tekhelet most likely uses the real techeiles and that Radzyner techeiles is unfortunately not the real deal. But I'm asking what are the arguments ...
1
vote
2answers
206 views

White knots and blue knots -Techeiles

On Ptil Techeles's website they bring the opinion of the Baal Haitur Shaar Tzitzis (right column) which says the following : זמן שהיה התכלת מצוי היו אלה הח’ חוטין ד’ תכלת וד’ לבן ומתחיל וקושר בלבן ...
1
vote
1answer
103 views

What is the underlying requirement of Techeilet?

I have been reading the various questions and answers about techeilet but I still don't understand the exact demand (and apologies if I missed this amongst the other questions). Is the goal to have a ...
0
votes
1answer
95 views

Techeilet – Shittat haBa'alei Tosefot

Per Ptil Tekhelet, the shitta of the Ba'alei Tosefot (following Rashi) is that half of the strings in the tzitzit are to be made of techeilet, as opposed to 1/4 (rov haposkim) or 1/8 (Rambam). However,...
4
votes
2answers
442 views

Lubavitcher Rebbe on Techelet from Murex trunculus

Did the Lubavitcher Rebbe (Rav Menachem Mendel Schneerson) say anything about wearing Techelet made from the Murex trunculus (as claimed by Ptil Tekhelet to be the correct Halachic Tekhelet) nowadays? ...
2
votes
1answer
64 views

Where to tie the Maimonidean half-tekheleth?

According to the Rambam that the tekhelet strand if only half-dyed, where exactly should the halfway-mark (or, in the strings I've seen, the transition portion) fall? Should it be up against the hole ...
1
vote
0answers
71 views

combining techeles views - tarti dsatri?

Is there a problem of tarti d'satri (contradiction) with combining tekhelet strings dyed according to one view (e.g. half-dyed) with tying methods of a different view?
1
vote
0answers
79 views

PreRishonic sources against the tekhelet half-string

What are the classical (pre-rishonic) sources explicitly or implicitly against the view of the Rambam that the tekheleth string is only half-dyed?
1
vote
0answers
113 views

The pre-Maimonidean half-tekheleth string

Are there any sources prior to the Rambam that suggest (even implicitly) that the tekheleth string is only half-dyed?
0
votes
1answer
66 views

Rambam on color certainty of tekheleth

According to a questioner on this page, the Rambam in the Pirush HaMishna contradicts the Rambam in Hilchoth Tzitzith regarding whether we can dye tekheleth due to uncertainty about the color. Where ...
0
votes
1answer
78 views

Vegan tekheileth

Does the oral tradition that identifies the hilazon as the source of tekheles necessarily indicate that one could not create the indigo-colored wool by other means? The gemara certainly indicates that ...
5
votes
1answer
160 views

Is there any support for the claim that tekhelet and argaman could be derived from the same creature?

Is there any indication in Chazal (or at least in other ancient literature) that tekhelet and argaman could be derived from the same creature (as currently proposed by the Tekhelet Institute)?
1
vote
1answer
209 views

The luxury of murex trunculus indigo

The Tekhelet Institute acknowledges that murex trunculus indigo is molecularly equivalent to plant-based indigo that was available in the ancient world for far cheaper (kala ilan). They reason that ...
3
votes
0answers
100 views

Pursuing pluralist purpura

According to most rishonim (and the simplest read of the extant Talmudic texts) the tekhelet string is dyed in its entirety. However, the Rambam maintains that only half the string is dyed such that, ...
19
votes
4answers
1k views

What is the downside to wearing techeiles?

There are many Compelling arguments to support Techelet, although it's not yet universally accepted. A friend of mine bought P'til Tekhelet Murex techeiles, and went to his rabbi (who I know and ...
1
vote
1answer
109 views

Who hechshers P'til Tekhelet?

P'til Tekhelet is an organisation which makes M. trunculus techeilet. Who hechshers their tzitziot?
1
vote
1answer
185 views

Tucking in Tekheles

I've heard it said by some chaverim of mine, that if one is to wear tekheles on their tzizits, they should tuck it in. They say many poskim rule this way, and that the gemara brings down something ...
5
votes
0answers
145 views

How did the mesorah for techeles get lost?

It seems odd that something like the tradition for techeles could have been lost. It seems unlikely that Jews just stopped using techeles at some point and then immediately forgot. Are there no ...
3
votes
2answers
192 views

Historical evidence that blue snail dye was produced in ancient times

http://en.wikipedia.org/wiki/Tyrian_purple and http://en.wikipedia.org/wiki/Iles_Purpuraires show that blue dye was produced from the murex in ancient times in these locations. But on Ptil Tekhelet's ...
0
votes
0answers
41 views

Halachos of psil techelet [duplicate]

Does the murex, which was found recently, contain the actual techelet? If there's a safek whether it really is or isn't ,is there any harm in wearing it? Like, would it posel the tzitzis?
2
votes
1answer
172 views

Techelet on Talit Gadol not Talit Katan

I don't have the money right now to equip all of my talitot katan with techelet, but I'd like to put it on my Talit Gadol (Please, no discussion of Techelet itself - I've made up my mind on that one). ...
1
vote
1answer
177 views

Stripes on talis with techeilet

This answer mentions says that the stripes on the tallis are reminiscent of techeilet. Now, we have a few different dyes that claim to be techeilet, which many people wear. Usually, talises with ...
4
votes
5answers
613 views

Cheap Techeilet?

I follow minhag techeilet and I am on a university student's budget. Does anyone know where to get tzitziot with techeilet online for relatively little?
2
votes
0answers
107 views

Tying 7 Huliot with Techelet MiDin Safek

The Tur writes (Orah Haim 11) that since in his days they didn't have Techelet they didn't have to be Makpid on the Huliot (the Rambam doesn't agree). Therefor the Posekim hold (Rosh, Tur, SH"A etc.) ...
6
votes
2answers
639 views

Why is it Ok to have tzizit without techelet?

The Mishna in Menachos 4:1 says that the mitzvah of the white tzizit is not gone if there is no techelet, and the mitzvah of the techelet is not gone if there is no white. That seems a straight ...
5
votes
2answers
359 views

May an Ashkenazi wear Yemenite Tzitzith?

Many Ashkenazim now wear Tzitzith with Techeleth tied in the tradition of the RaMBa"M. However, my understanding is that Ashkenazim minimally require a double-knot at the base of the tassle in order ...
11
votes
3answers
1k views

Fake Techelet: invalidating the entire Tzitzit?

Let's say I use the pretty much disproven Techelet (Radzyner) : is my Tzitzit completely Pasul? I think according to the Arizal it isn't. Does anyone disagree?
4
votes
4answers
337 views

Tcheiles on Shabbos

In the response to List of Techelet Wearers it mentions a few Gedolim that wear Tzitzis of Techeiles on Shabbos only. Why would there be a difference between Shabbos and the rest of the week?
2
votes
1answer
185 views

Mahloket Rishonim on Techelet and no Shulhan Aruch or Bet Yosef

Mahloket Rishonim how many strings should be used in the Techelet. One string (Raavad) Two strings (Rashi, Tosafot, Rosh and Tur) Half string (Rambam) In a case of an argument like this who would we ...
3
votes
1answer
286 views

Rif, Rosh, and Rambam about the Techelet

The Petil Techelet company (I believe) makes three types of colored strings: Raavad- 1 full string of blue Tosafot- 2 full strings of blue Rambam- 1/2 string of blue Does the Rif or Rosh mention any ...
5
votes
2answers
398 views

HaGaon HaRav Asher Weiss Shelita and Techelet

Does anyone know if HaRav HaGaon Asher Weiss wears Techelet? Also, why or why not?
6
votes
2answers
2k views

List of Techelet Wearers

I was looking online for a list of people famous for deciding or influencing halacha, who currently wear Ptil Techelet Techelet ("Murex") However I could not find one. Does such a list exist? If not,...
3
votes
4answers
540 views

Sefardic contemporaries for Techelet?

Are there any Sefardic Poskim today that have written a book and discuss the Techelet? If so, can you bring one that is FOR the Techelet?
5
votes
3answers
306 views

Techelet from the Kineret

Is the Murex trunculus (used by Ptil Tekhelet) found exclusively at the Kineret? Or is at found at the Kineret as well as other locations? The reason I am asking this question is because the Arizal ...
5
votes
4answers
682 views

Compelling arguments to support Techelet

I know a lot of arguments against the wearing Techelet from my research etc. and I would to now hear some arguments for the Techelet. Does anyone have any arguments that support the Techelet?
2
votes
4answers
501 views

Where can I get dark blue Techelet for my tzizit and talit?

I want to buy some techelet and white tzizit. I want the techelet to match the color in this picture and to be made by Ptil Tekhelet foundation. However, when I try to contact them on their website I ...
24
votes
13answers
3k views

Why is techeles not universally accepted?

The Machon Ptil Tekhelet has (to my mind) some pretty compelling arguments as to why the Murex Trunculus is very likely the genuine chilazon from which techeles (blue dye) for the mitzva of tzitzis is ...
4
votes
1answer
202 views

According to the Rambam, what color would most of the tzitzis strings be if the garment was all techeilet?

The majority opinion is that, when we had the tradition on techeilet (the wool-dyed-blue string on tzitzis), each corner of the garment would have 7 white strings and one techeilet string. If I've ...