11. Bathroom Hefsek – Using the bathroom in middle of eating or drinking:[1]

Using the bathroom in middle of a meal of bread, or in middle and eating session of a food or beverage, is not considered a Hefsek which requires the blessing to be repeated. [This applies even if one spent a long time in the bathroom so long as Shiur Ikkul has yet to pass. This, however, only applies if one went to the bathroom in the home of one’s eating or drinking[2], however, if one needs to switch homes, or go from inside to outside or vice versa in order to use the bathroom, then this is subject to the laws of blessing repetition due to change of location explained in chapter 20.]

[1] Rama 178:6-7; Admur 178:8 “So long as one was awake then even if he has spent much time with other matters in the area of his meal then he is to return and eat without a blessing”; Ohel Moed Shaar Habrachos 8:5 in name of Ram; Ramban Milchamos ; Erech Hashulchan 178:9; Maharikash; Kneses Hagedola 178; Machazik Bracha 178:3; Zechor Leavraham Os Samech; Beis Menucha 178:9; Chesed Lealafim 178:4; Ben Ish Chaiy 8; Kaf Hachaim 178:42

[2] See Maharikash; Kaf Hachaim 178:42; Piskeiy Teshuvos 178:21 and 7