When one takes a drink and is not sure if they will have another drink soon when they make the "שהכל" (brocha before) they should have in mind it should only cover this drink.
BiKitzur Shulchan Aruch
Ep. 436. When one takes a drink and is not sure if they will have another drink soon when they make the "שהכל" (brocha before) they should have in mind it should only cover this drink.
