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See Chapter 1 Halacha 1 for the full details of this subject!
After blessing on foods: It is a Rabbinical obligation to recite an after blessing after eating a certain amount of any food and drinking and after drinking a certain amount of any beverage, with exception to one who eats bread in which case it is potentially a Biblical obligation, as will be explained next.
Birchas Hamazon on bread: After eating bread made from the five grains, one is Biblically required to recite Birchas Hamazon if they are satiated from the meal. If they eat at least a Kezayis but are not fully satiated, the obligation is Rabbinical. Only the first three blessings of Birchas Hamazon are Biblical; the fourth is Rabbinical.
Meiyn Shalosh: Some Poskim[1] rule that the after blessing of Meiyn Shalosh is a Biblical command. Other Poskim[2], however, rule that it is merely Rabbinical, and so is the ruling of Admur.
| Subject | Obligation Type | Details |
| After blessing on foods | Rabbinical | Recite after eating a certain amount of food or drinking beverage, except bread |
| Bread (Birchas Hamazon) | Biblical (if satiated), Rabbinical (if at least Kezayis but not satiated) | After eating bread made from five grains; only first three blessings are Biblical, fourth is Rabbinical |
| Meiyn Shalosh | Disputed: Some Poskim say Biblical, others say Rabbinical (Admur rules Rabbinical) | After blessing; subject to differing opinions |
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[1] Tur 209; Rashba, Rosh, brought in Beis Yosef 209; Sheilasos; Rabbeinu Yona; M”A 172:3; Birchas Habayis 1:2 and P”M Pesicha 202 leaves this matter in question; Poskim brought in Encyclopedia Talmudit Vol. 4 Erech Beracha Meiun Shalosh p. 269 footnote 10
[2] Admur Seder 2:1; Michaber 209:3; Rambam Brachos 81:2; Semag; Poskim brought in Encyclopedia Talmudit Vol. 4 Erech Beracha Meiun Shalosh p. 269 footnote 11
