About Eat By Date - How Long Does Food Last? We are a group of contributors from the kitchen and classroom communities who set out to answer the question, “How long does food really last?” . From the best ingredients to the ordinary, we provide you with a diverse and informative perspective on food shelf life, food safety, expiration dates, recipes, substitutions, food storage and more. We are focused on helping you save money , eat healthy , and debunk the myth of expiration dates on food. How to use the site : Browse the menu above, use the search function to the left or click a picture below to learn about your favorite foods and beverages!