Red ceramic bowls may be poisonous. In daily life, if the purchase channels of the colored ceramic bowls we use are irregular or the pigments are irregular, then the heavy metals in the colored pigments on the surface of the ceramic bowls will exceed the standard, thus affecting the health of users invisibly. Whether the heavy metals exceed the standard or not can't be distinguished by the naked eye, and the results can only be obtained by professional testing with special equipment and instruments.

Whether the pure white ceramic bowl is the safest. Not necessarily, although people's cognition of white is the purest, most hygienic and safest, it cannot be generalized in ceramic bowls. As mentioned in the previous paragraph, the harm of ceramic bowls mainly comes from the dye quality and process control in the production process, and has nothing to do with the color itself.