How can I separate Challah if I am making various batches of dough that are each less than Shiur Challah, being that I don’t have a bowl that can hold all of the dough? After the baking, you should join the baked products together in a single vessel, such as
After the baking, you should join the baked products together in a single vessel, such as in a bag, and may then separate Challah with a blessing. [To note that this separation after baking is even initially done by Matzah baking as we do not make a dough the size of Shiur Challah, and hence need Tziruf to separate after the baking.]