Slow cookers are absolute kitchen heroes. There is nothing quite like the feeling of being able to “set it, forget it, and come home to a house filled with the aroma of comfort food.” However, as convenient as these appliances are, they are not magic. Not every ingredient plays well with the low-and-slow heating method used by these pots. If you have ever opened your lid only to find “curdled dairy, rubbery shrimp, or mushy pasta,” you know the frustration of a ruined meal. To help you avoid a kitchen disaster, we have put together the ultimate guide on what…