Sentence:  Those that are stewed or boiled often betray in their unsatisfactory savor a lack of completeness in the <WSD>kitchening</WSD> process — beans, beets, corn, cauliflower, tomatoes, etc., usually exhibiting this defect — and thus is loaded on the digestive function a burden that normal cooking could never impose. 
Meaning of the word marked with <WSD> tags:  Food preparation.