Daily Halacha - Shabbat Laws, 19th of Iyar 5777
Essential guidelines for maintaining Shabbat observance: practical insights on knots and closures
Is it permitted to tie two knots one on top of the other on Shabbat?
Two knots tied one on top of the other are not considered a knot, and it is permitted to tie them on Shabbat. The same applies to a knot at the end of a string, which is considered as two knots according to the basic law and is therefore permitted, though one who is stringent should be blessed [Chazon Ovadia 5, p. 62].
It is forbidden to tighten the upper knot of tzitzit that has become loose [Chazon Ovadia 5, 65].
Is it permitted to use zip ties on Shabbat?
It is permitted to use zip ties on Shabbat, and this involves neither the prohibition of tying nor sewing [Chazon Ovadia p. 75].
Is it permitted to wrap a wire around the top of a cookie or bread bag?
A wire that is wrapped around the end of a bag may be opened and rewrapped on Shabbat, and this does not constitute tying at all [Chazon Ovadia p. 77].
Courtesy of Daily Halacha - Only Good and Kindness
