I bought this pressure cooker just last month. During the 4th or 5th, I could smell something burning while cooking on low-medium heat. I turned off the stove and allowed the cooker to cool. When I opened it there was an inch of burnt matter stuck to the bottom. This happened a week ago and I am still trying all kinds of home remedies to get rid of the grime. I was well aware of the instructions, which said not to use too little water or the food will get burnt. I know I used enough water because I opened the lid the rice was completely and floating in extra water. I would like to return this item and use my money for something built for the job! I will also be writing directly to the company!