or save yourself the trouble
Yes, it's completely normal! The yellow color on the filter edges is entirely normal and represents a physiological characteristic of the material used. So, don’t worry, our experts confirm that:
The color is simply due to the properties of the materials used in the production of the ceramic filter and doesn’t indicate any defect or quality issue.
If you have additional questions, please feel free to contact our customer service at support@vitesy.com.