This code will easily remove articles from feeds based upon a character string in the title of the article or part of the URL. This is specifically for The New Yorker recipe to remove video links (word "video" in the title of the article) and Goings On About Town (GOAT in the url), but it can be easily adapted for any recipe:
In addition to matching on the url and/or the title of the article, one can match on the article date or summary with article.date or article.text_summary.