1. Toiletries

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Shampoos, soaps, and other personal items that are used in showers contain chemical components that cause discoloration which can lead to the grout’s begin to yellow. This is especially the case with shampoos and hair dyes that are formulated with coloring agents. Look at the labels of the products to determine if the product contains polymers, dyes, as well as other substances that could cause grout to become yellow.

2. Body Oils

The oils of hair and skin contain numerous contaminants that could cause discoloration not just of grout, but also tiles.

3. Sealers and waxes: Sealers and other waxes may contain polymers that may discolor in time and lead to yellowing.

4. Grout Type

Many grout types are susceptible to yellowing. For instance, White epoxy grouts can be known for becoming yellow.

5. Cleaning Products

Certain cleaning products, particularly ones that contain dyes may cause discoloration of grout. Commonly, household bleach causes the grout to turn yellow. Look at the labels of products to determine whether the products contain polymers, dyes, and other components that could cause grout to become yellow.

6. Iron

Certain water supplies are iron-rich. The iron in water can cause minerals in the grout that could oxidize, causing yellow discoloration. If the water mixed with the grout during installation contains iron, it could cause discoloration. A professional tile and stone restoration technician can conduct an examination to determine if your water supply or grout contains iron.

7. Water Dirty Water

Mopping floors with water is prone to becoming dirty. The dirt, oil, and other substances. can settle upon the lines of grout, causing an orange cast. It is essential to keep the mop head in good condition and to change the mop’s water regularly.

8. Cigarette Smoke

Smoke from cigarettes can settle in the grout, which causes the grout to become yellow. It is evident that smoking outside can prevent further yellowing of the grout as well as furniture, walls, and other household items.

9. Aerosol Sprays

Air freshener, hairspray along other aerosols may occasionally cause discoloration of grout. Look at the labels of the products to determine whether the products contain polymers, dyes, as well as other substances that can cause grout to become yellow.

10. Bleeding Over

Certain types of tiles like white marble, have iron. Iron in the tile may get into the grout and cause it to oxidize, which causes the grout to become yellow.