They are dishwasher safe, although they do not recommend a dishwasher for baking dishes.
There are two types of clay that may be used for pottery primary is found by the rock it came from so it is much more pure. The secondary clay has traveled away from the rock it came from, picking up sediment and additives along the way, which give it different characteristics and make it finer and lighter than primary. The clay is first formed, then dried and finally fired (heated), using different temperatures for different types of pottery.
Stoneware mugs can be part of a dinner serving set, matching your plates and bowls, or a decorative or commemorative cup such as a beer stein. They usually use a glaze on this when they fire it at a temperature of over 2000 degrees F, which ensures it will hold liquid. This also makes it great for cooking in a conventional, convection or microwave oven up to 450 degrees F, but you cannot use it under a broiler or on direct heat.
They are dishwasher safe, although they do not recommend a dishwasher for baking dishes. Baking dishes should be wiped down with a light coating of oil before you use it the first time, and washed in hot water without detergents to clean them, similar to cast iron skillets. This makes them bake better and helps keep them from sticking. The internet is full of places selling stoneware mugs, but it is not hard to find where you live, either. Most of your discount stores, such as Wal-Mart and Target have a nice selection as well as the higher end stores. You can also check by the brand you like as a lot of them have their own stores.
They usually use a glaze on this when they fire it at a temperature of over 2000 degrees F, which ensures it will hold liquid. This also makes it great for cooking in a conventional, convection or microwave oven up to 450 degrees F, but you cannot use it under a broiler or on direct heat.
A second hand store or garage sale may have some good deals, but you should check to make sure it is stoneware. Porcelain will have a translucent look when held up to the light and earthenware will be white where it is chipped. Stoneware mugs are a little heavier than others, but the extra weight is well worth it.
