Is it permissible if the wife accepts grain or flour instead of the obligatory bread if they mutually agree?

Primary text

If the husband gives her grain or flour instead of bread, it is permissible if they both consent. This is not considered a true contract of exchange because the Lawgiver only stipulated sufficiency, and whichever item achieves sufficiency becomes the obligatory provision. The resort to obligatory bread occurs only in a dispute, due to its precedence as the customary staple food.