Among the many pandemic-driven culinary trends over the past two years is a reminder that rotisserie chicken remains a popular comfort food. Many grocery store chains enjoyed strong and steady rotisserie chicken sales amid the ups and downs of the past 24 months, as have a number of restaurants that serve it. Investing in a rotisserie oven can be good for business, but beware. They dump a lot of grease into your plumbing system. Here’s how to prepare for it.