Origin / manufacturing methods Polish handmade, handmade painting Every piece is hand painted by local craftsmen in Boleslawiec, Poland! From generation to generation, craftsmen use hand-cut sponges or vegetables, antique century potato engraving techniques, and unique and elaborate totem creations, making each piece of Polish pottery unique. We have imported Polish pottery exclusively. It is the most famous studio in the world. It has been designated to produce the highest quality Polish pottery for the Holy See, also known as Level 1! ▼ ▽ ▼ The characteristics of Polish pottery: ► The process is tempered at temperatures between 1200 ° C and 1600 ° C for more than 20 hours. ► Safe to use in microwave, oven, freezer, dishwasher. ► Non-toxic, absolutely free of lead and cadmium. The US FDA approved it as a safe food container. ► Extremely durable-glaze prevents impact cracks and scratches during use. ► Its glaze formula prevents food residues from sticking and is easy to clean. ► The characteristics of white (kaolin) ceramic insulation can be used for cold food and hot drinks to extend the time of tasting food. You can also maintain the humidity of food in the oven. ▼ ▽ ▼ Notes on the use of Polish pottery: Soak it in room temperature water for the first time before using it. You can use Polish pottery for up to 4 minutes in a microwave oven or 180 degrees Celsius in the oven, but please do not use it directly on a high temperature (such as a gas stove) surface. Polish pottery is a very durable container, but please don't take it out of the freezer and put it into the oven directly. It is best to return it to room temperature regardless of hot and cold to proceed to the next step. The colorful and colorful Polish pottery is definitely a heirloom that can be passed down from generation to generation as long as you properly use it!