Based on your description should be the floor tiles have oil stains, not as if, water mopping is dragged not clean, according to my method below, to ensure that your floor tiles back to smooth.

Preparation tools: brush, baking soda, hot water, detergent, wet rags, dunnage.

The first step, let's mix some cleaning solution.

Take a basin, add 30 milliliters of detergent, 30 grams of baking soda, and a liter of hot water, mix well and set aside.

In the second step, use a brush to clean the floor tiles.

Use a brush dipped in the cleaning solution to brush the floor tiles with an example, the grease stains can be easily brushed down and the stains are clearly visible.

Step 3, Clean the floor tile with a damp towel.

After the stains are all brushed down use a wet towel to clean up all this cleaning solution and impurities,

Step 4, Mop the floor with water.

Wash the dunnage with water and mop the entire kitchen.

Here is the end, you can find after cleaning the floor tiles will become smooth again, no longer astringent, because the oil stains have been cleaned off, daily we have to pay attention to every time you finish cooking to clean the floor, otherwise you such a situation will still happen often.