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Klaff Tanning question:
By
Rabbi Eli Gutnick
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I received this question via email. I am not really a klaf expert, I was wondering if anyone could answer this question: Dear Rabbi Gutnick, I am writing to you because a good friend of mine has put the idea into my head that the klaf in my tefillin were not really tanned and therefore are not kosher. He referred me to Megilla 19a re diftera. From the research that I have done so far, it seems that the klaf that is used today is tanned only with a lime wash. On all of the tanning websites I’ve seen so far, they say that the lime doesn’t accomplish tanning but only the removal of the hair and some other pre-tanning effects. Would you be able to explain to me or refer me to a website that explains how the tanning process that is used today takes the hide out of the category of diftera? Thank you very much.
The forum is back online...for reference and research purposes.
By
Rabbi Eli Gutnick
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Dear Readers and Members, The forum has been down for over 6 months because the domain name (www.stamforum.com) lapsed and it is no longer available to re purchase. Although this forum is now defunct (it has morphed into several whatsapp groups), I have had many requests to put it back online because it contains so much information (over 1,800 posts and thousands of comments in the discussions, on a wide range of topics related to STa"M). I have therefore put the forum back online at blogger, so the address is www.stamforum.blogspot.com. The forum lasted for a decade...not a bad effort! It was pretty popular back in the days before whatsapp and managed to receive over a million hits in it's short life. It was one of the only organised forums in the STa"M world and definitely the largest in it's heyday. I would like to thank all those who cobtributed over the years, particularly the early members who helped build it up. Thanking you all, Eli
put a matlis on from behind with PVA glue
ReplyDeleteElmer wood glue is very strong and good for a Matlit. Some time ago I talked to a chemist at the company and he assured me that all ingredients are synthetic, no animal ingredients.
ReplyDeleteThere are two different materials called PVA.
ReplyDelete1) polyvinyl acetate
2) polyvinyl alcohol
The first one is a good adhesive and is used in Elmer (and others) wood glue.
The second one is highly water sensitive and quickly deteriorates in humidity.
Use only the first one. Never use the second one.
Instead of a matlit of k'laf you could also use Goldbeater's skin that has been prepared lishmah - I recently got a local Rabbi/shochet to make this for me and it is excellent for rips as it is very thin but very tough.
ReplyDelete