Glass bowls are safer and healthier, they are mainly made of ordinary glass and toughened glass, but whichever type of glass they are made of, they do not contain substances that are harmful to the human body and there is no odour left in the bowl after use. This means that there is no smell left on the inside of the glass bowl, so as long as the bowl is cleaned after use, there is no need to worry about odours arising from the next use.