Yes, you can bring food. No glass . And they are fussy about trash, thankfully, so use the trash cans that abound. There are lots of places on the boardwalk to buy food also.

You are permitted to bring your own food and drinks to Rehoboth Beach, Delaware, provided you follow the specific city ordinances designed to keep the beach clean and safe. Many families choose to bring coolers packed with sandwiches, snacks, and non-alcoholic beverages to enjoy a full day by the ocean. However, there are a few "golden rules" to keep in mind: alcohol is strictly prohibited on the beach and the boardwalk, and glass containers are banned to prevent injuries from broken shards in the sand. Cooking or grilling on the beach is also not allowed. While you can eat on the sand, you must ensure that all trash is disposed of in the many blue recycling and trash bins located at every street entrance. If you prefer not to pack a lunch, the iconic Rehoboth Boardwalk is famous for its "beach eats," including Grotto Pizza, Thrashers French Fries, and Fisher’s Popcorn. Most visitors find that a mix of bringing their own snacks and indulging in one or two boardwalk treats is the best way to manage a budget while enjoying the quintessential Delaware shore experience. Just remember that seagulls in Rehoboth are notorious for "snatched" snacks, so keep your food covered when you aren't actively eating.