Test your knowledge below and learn how long your food will stay good in the refrigerator and freezer. 1 Mayo-Based Salads: Chicken Salad, Egg Salad, Tuna Salad Or Macaroni Salad. Buns In My Oven. In the fridge: 3 to 5 days. In the freezer: Does not freeze well. 2 Hot Dogs (Opened Package) Richard Masoner / Cyclelicious/Flickr. In the fridge: 1 week. In the freezer: 1 to 2 months. 3 Hot Dogs (Unopened Package) gagilas/Flickr.