Related על חגיגה 36:19

What is the presumption (i.e., the presumption of purity following immersion, see Chag. 2:6-2:7)? One who has removed [one of] his feet from the waters [of immersion] and still has [one of] his feet in the waters of immersion, [if he had intended to purify himself] for a light matter, he may strengthen himself [to change his intention to intend purification for a] stringent matter, and what he has done is done (i.e., although not ideal, the immersion is valid for the stringent purpose). One who immerses in order to raise himself from impurity to purity, behold, he is pure in everything. One who immerses, if he intends it, he is pure, and if not, he is impure, but as to one who immerses his hands -- either way, his hands are pure. Rabban Gamaliel would eat unconsecrated foods prepared in a state of purity all the days of his life, but his apron [nevertheless] possessed midras-impurity (i.e., the impurity conveyed by leaning on or moving an object) vis-a-vis consecrated foods. Onkeles the Convert would eat foods prepared in a state of purity [applicable] to consecrated foods all the days of his life (i.e., following his conversion), but his apron [nevertheless] possessed midras-impurity vis-a-vis [the waters of] purification.

Someone who washes for fruit is a fool. Rama: specifically when he washes as if he is obligated to halachically, but he is allowed to wash for cleanliness. Mechaber: It seems from his words that roasted meat, even though it's juices are moist on it, have the law like fruits. Cooked grains that are dried are also considered like fruits.