Marinating the meat can also help break down connective tissues prior to cooking, resulting in a smoother texture. Using a slow cooker with a lid that fits well will retain moisture and help the collagen transform into gelatin more evenly.

11. When To Toss The Roast And When It’s Safe To Eat

If your roast has been cooked to the proper internal temperature and does not exhibit any signs of spoilage like a bad odor, unusual color, or slimy texture, it should be safe to eat. The white strings themselves are not harmful and are a normal part of the cooking process.
However, if you have any doubts about the safety of your meat due to its smell, color, or texture, it’s better to err on the side of caution and discard it. Food safety should always be a priority to prevent foodborne illness.