Should I clean the grout or tile first?

It's generally recommended to clean the grout first, before cleaning the tile. This is because the grout lines are often the areas where dirt, stains, and mildew accumulate, and cleaning the grout first can help prevent dirt and stains from spreading onto the tile during the cleaning process.
When you clean the grout first, you'll be able to focus on the dirtiest and most stained areas, without worrying about spreading dirt onto the tile. Once the grout is clean, you can then focus on cleaning the tile. Additionally, when cleaning the grout first, you can use a stronger cleaning solution specifically designed for grout, which may not be suitable for tile.