Slow cookers can feel like magic, but they’re unforgiving when you give them the wrong kind of power. Delicate foods like dairy, seafood, fresh herbs, and leafy greens simply can’t survive hours of low, trapped heat. Cream breaks into sad, grainy puddles. Shrimp turns rubbery. Basil and cilantro go from bright and fragrant to harsh and bitter. Even pasta and rice, which seem like natural partners for one-pot comfort food, become mushy, scorched, or both. It’s not that the slow cooker fails you; it’s that some ingredients aren’t built for this kind of patience.

The secret is learning what to hold back. Add seafood, fresh herbs, and tender vegetables near the end. Cook rice and pasta separately, then stir them in. Brown bacon and crisp toppings on the stove, and finish the dish with them. Respect the limits of your slow cooker, and it will reward you with the kind of meals you dream about coming home to.