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how to remove shower tile grout mold with bleach baking soda and plastic wrap
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DIY Grout Mold Removal Paste

A simple and effective solution for tackling stubborn mold in shower grout using common household items. This paste works like magic to restore your grout's clean and fresh appearance.
Prep Time5 minutes
Cook Time10 minutes
Resting Time1 hour
Total Time1 hour 15 minutes
Course: Cleaning, DIY, DIY Household Cleaners
Cuisine: Cleaning, Household Cleaning Tips
Servings: 1 cup (Covers approximately 10–15 square feet of grout.)
Cost: $2-$3

Equipment

  • mixing bowl
  • Toothbrush or small paintbrush
  • Gloves
  • Safety goggles

Ingredients

  • 1/4 cup bleach
  • 3/4 cup baking soda
  • Plastic wrap

Instructions

  • Mix the Paste: In a small bowl, combine 1/4 cup bleach and 3/4 cup baking soda. Stir until the mixture forms a thick, pancake batter-like consistency.
  • Apply the Paste: Using a toothbrush or small paintbrush, generously apply the paste to moldy grout areas.
  • Seal with Plastic Wrap: Cover the treated areas with plastic wrap to keep the paste moist and allow it to penetrate the mold.
  • Let it Sit: Allow the paste to rest for 30–60 minutes, depending on the severity of the mold.
  • Test & Rinse: Peel back the plastic wrap and check if the mold wipes away. If it does, wipe away the paste with a damp cloth or sponge and rinse thoroughly with clean water.
  • Repeat if Necessary: For stubborn mold, reapply the plastic wrap and wait an additional hour before rinsing.
  • Dry the Area: Use a towel to dry the grout completely to prevent mold from returning.

Notes

  • Always work in a well-ventilated space. Open windows and use fans if possible.
  • Wear protective gloves, safety goggles, and a respirator if you're sensitive to bleach fumes.
  • Test the paste on an inconspicuous area first to ensure it doesn’t discolor your grout.
  • To prevent mold regrowth, apply a grout sealer, improve ventilation, and regularly wipe down your shower after use.
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