Following Ari's post, I have cut and pasted an article I wrote for a local publication some time ago on this very issue. I think it sums up this issue and the various shittos. I also suggest Rav Yonason Hershlags kuntres on this topic called "stumah shebestam". The different ways of forming the"Hefsek Parshas Stuma" in tefillin parshiyos. Introduction There is a common misconception that the only difference between the different minhagim (customs) of tefillin parshiyos is the ksav (font) they are written in. For example if a person is Sephardic, the ksav will be "Vellish", a script that is unique to Sephardic Jews; If one is of traditional Ashkenazic and non-Chassidic background, then he would usually get the "Beis Yosef" script; If one is "Chassidic", he would get the "Arizal" script, etc. While this is correct, there are also different opinions and minhagim on how to make the spacing between the parshiyos of th
Hi Zev,
ReplyDeleteIdeally, 45 to 55 percent humidity. Sixty percent is still good, no more. Once the relative humidity increases to 65 percent, the intake of moisture by the parchment rapidly increases, and at 68 to 70 percent, the danger of growing mold becomes a serious concern.
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ReplyDeleteI recall seeing a list many years ago put out by klaf Yaakov that suggested klaf be stored at around 50% humidity.
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