Pulled my beef roast out of the slow cooker and saw these weird white stringy things poking out of the meat. They look like little worms or parasites.

and connective tissues are integral parts of any cut of meat. Muscle fibers are the actual “meat” portion of the muscle, while connective tissues hold these fibers together and attach muscles to bones. Beef contains a significant amount of connective tissue, which is largely composed of collagen.

When these tissues are cooked—especially in a slow cooker—the collagen can become gelatinous and appear as white, stringy bits. This is particularly