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Are you permitted to use a mechanical scale to weigh the correct Shiur of Maror on Seder night?

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Weight is probably not what you are looking for anyway judaism.stackexchange.com/q/6920/759 – Double AA Mar 25 '13 at 22:36
@DoubleAA According to those positions whom require about 25 grams of Maror, can one use the scale? lol Thanks! – RCW Mar 25 '13 at 22:41
Like I indicated above most opinions hold that measurements are by volume not mass. So none of them (including prety much all ashkenazim) hold that marror is measured in grams. – Double AA Mar 25 '13 at 22:46
@DoubleAA Many sephardim go by weight, even though the halacha is by volume, weight is easier to measure. And the shiurim given for weight is much more than a kzayit would be anyways of either matzah or marror. – avi Mar 26 '13 at 18:01
@Avi I said Ashkenazim for a reason – Double AA Mar 28 '13 at 1:39
up vote 4 down vote accepted

The Shulchan Aruch (306:7) rules that though one can generally not measure things on Shabbat and Yom Tov, one can do so for the purposes of a Mitzva.

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