11 Foods You Should Never Put in a Slow Cooker

4. Rice
While some recipes adapt rice for slow cookers, it can be tricky. Rice may cook unevenly or become overly soft if left too long. Like pasta, it’s often safer to prepare it separately.

5. Lean Cuts of Meat
Slow cookers work best with tougher, fattier cuts of meat that break down over time. Lean meats like chicken breast or pork loin can dry out and become tough after hours of cooking.

6. Fresh Herbs
Delicate herbs such as basil, parsley, and cilantro lose their flavor during long cooking times. Instead, add them at the end to preserve their aroma and brightness.