"Jack attended a local technical college on the G.I. Bill for a degree in culinary arts and held down odd jobs in his spare time. After completion of his schooling, he found full-time work as a chef working for a popular restaurateur named Frank Angelino. Later, with Angelino’s help, he eventually opened his own restaurant, Jack’s Bistro."
— Wikipedia sums up Jack Tripper’s cooking experience in one quick paragraph.

(Source: Wikipedia)