Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Aluminum parts, avoid for your family's health

I feel it compelling to let people know what I just found out.I was very excited and ordered this product after reading the good reviews and the word "stainless steel" on the description. Even speed it up with two days shipping.But was very disappointed to find out the meat chamber, the cap, the screw (which push the meet inside the meat chamber) are not SS, but are made of aluminum. First I only suspected because they are very light. Also they shine differently from the body. The body, at least outside is stainless steel that's for sure. Then I rubbed those parts with my figure, they turn into black. Aluminum particles are of black color. As long as you keep running with your figure, it is black. Image high pressured meat going through this chamber... try rubbing your figure on your stainless steel spoon, you never get black.Eating Aluminum over the years is very bad for health. So I am returning it.