prompt: What can I put in ceramic cups to stain them?
chosen: What can I put in ceramic cups to stain them?
chosen: user
chosen: You can put coffee, tea, red wine, and certain acidic foods like citrus fruits or vinegar into ceramic cups to stain them. These natural substances will cause the ceramic to darken over time as the materials react with the clay. Some chemical stainers may also be used to quickly colour the ceramic; however, it is important to research the safest and most effective stainers before using any products.
chosen: assistant
rejected: What can I put in ceramic cups to stain them?
rejected: user
rejected: assistant