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* However, Rav Ben Tzion Abba Shaul (Or Letzion vol 3, p 30) argues that the minhag only developed when matza had a similar density to water, but because our matza is thin and dry, there is no need to be stringent to calculate based on weight. Accordingly, he calculated a kezayit to be 29cc, which he says is less than 20 grams in weight.</ref> | * However, Rav Ben Tzion Abba Shaul (Or Letzion vol 3, p 30) argues that the minhag only developed when matza had a similar density to water, but because our matza is thin and dry, there is no need to be stringent to calculate based on weight. Accordingly, he calculated a kezayit to be 29cc, which he says is less than 20 grams in weight.</ref> | ||
===Someone who is sick=== | ===Someone who is sick=== | ||
# Someone who is sick and can’t eat so much Matzah can use the Kezayit evaluated according to a third of a KeBaytzah which according to Rav Chaim Noeh is 17.3 cc. <Ref>Mishna Brurah 486:1, Halichot Shlomo (pg 214 note 55) </ref> However, for a personal situation it would be advisable to consult one's Orthodox rabbi to determine the correct amount for one's individual situation.<ref>This is simply good advice so that the Rabbi is able to consider the situation and apply the appropriate leniencies one's individual situation. </ref> | # Someone who is sick and can’t eat so much Matzah can use the Kezayit evaluated according to a third of a [[KeBaytzah]] which according to Rav Chaim Noeh is 17.3 cc. <Ref>Mishna Brurah 486:1, Halichot Shlomo (pg 214 note 55) </ref> However, for a personal situation it would be advisable to consult one's Orthodox rabbi to determine the correct amount for one's individual situation.<ref>This is simply good advice so that the Rabbi is able to consider the situation and apply the appropriate leniencies one's individual situation. </ref> | ||
===Crumbs which were caught between one's teeth=== | ===Crumbs which were caught between one's teeth=== | ||
# What stays between one’s teeth isn’t counted towards the [[Kezayit]], however, that which is in one’s gums is counted towards the Kezayit. <Ref>Piskei Teshuvot 486:1, Natai Gavriel (vol 2, 91:7) </ref> | # What stays between one’s teeth isn’t counted towards the [[Kezayit]], however, that which is in one’s gums is counted towards the Kezayit. <Ref>Piskei Teshuvot 486:1, Natai Gavriel (vol 2, 91:7) </ref> |