Yes, cast iron enamel cookware is dishwasher safe! Cast Iron is extremely tough andd very durable!
If you washed your cast iron skillet in the dishwasher you should be able to re-season it. Here's a link to a blog about caring for cast iron cookware: http://www.missionrs.com/blog/?p=20
Enamel cast iron cookware has a smooth, non-stick surface due to its enamel coating, making it easier to clean and maintain. Traditional cast iron cookware is seasoned with oil to create a natural non-stick surface over time. Enamel cast iron is also more resistant to rust and acidic foods, while traditional cast iron requires more maintenance to prevent rusting and avoid acidic foods that can damage the seasoning.
Many of the newer enamel coated cast iron cookware manufacturers advertise their products as safe for use in the freezer, as well as the dishwasher. Traditionally, the answer would be no. In fact, many would cringe at the thought. My grandmother would tell you to keep your cast iron out of the freezer and the dishwasher or you'll ruin the integrity of your season coat (and I would agree.) However, the most unbiased answer is that you should check with the manufacturer of your cookware.
Cast iron enamel cookware can handle very high temperatures but the enamel layer can be delicate and susceptible to scratching. So, after washing, make sure you gently hand dry with a soft towel and avoid scratching it on the prongs of the dish washer. Also, when cooking in the enamel cookware, use a wooden or plastic spatula instead of a metal spoon to avoid scratching or damaging the enamel layer.
Cast iron cookware is made entirely of iron and requires seasoning to prevent rusting and sticking. Enameled cast iron cookware has a layer of enamel coating that prevents rusting and eliminates the need for seasoning. Enameled cast iron is also easier to clean and comes in a variety of colors, while traditional cast iron is more durable and can withstand higher temperatures.
Cast iron cookware will last nearly forever as long as it's properly cared for. Never put it in the dishwasher; wash by hand with mild soap and water. Keep it dry. Don't cook acid foods in cast iron; this will cause it to pit.
Cast iron bakeware can be difficult to take care of if you leave food and other residue sitting in the bakeware for hours at a time, however it is easier to clean than cookware that is not non-stick. It can be cleaned in the dishwasher however many people prefer doing this by hand to ensure the integrity of the quality of the cookware.
The typical color of cast iron cookware is dark grey or black.
To clean Le Creuset cast iron cookware effectively, first let it cool completely. Then, wash it with warm, soapy water and a soft sponge. Avoid using harsh abrasives or metal utensils that can damage the enamel. Dry the cookware thoroughly and store it in a dry place to prevent rust.
No, it is not safe to microwave cast iron cookware as it can damage the microwave and potentially cause a fire.
You can find the cookware online at many retailers including amazon.com, macys.com, & overstock.com. Ebay is a great place to find new & used items for really good prices as well.
The black residue from cast iron cookware is not harmful to health. It is a natural byproduct of cooking with cast iron and is safe to consume.