Beef back ribs have a lot of marbling because of their high-fat composition. It's normal for beef back ribs to have many fat spots, so don't fear these cuts of meat: The more fat, the more flavor. When using the Instacart app, all you have to do is add beef back ribs to your order, and an Instacart shopper can deliver your beef back ribs to you in as little as 2 hours when available! You can save meal preparation time by using the convenience of the Instacart app for your meat purchasing.