While the vinegar is working its magic, it’s time to prepare the baking soda paste. In a small bowl, mix **1/2 cup of baking soda** with a small amount of water (about 2-3 tablespoons). Stir the mixture until it forms a thick paste. The paste should be spreadable but not too runny.
Baking soda in paste form is ideal for tackling stubborn stains or areas with heavy soap scum build-up, as it provides some scrubbing power.
#### **Step 4: Apply the Baking Soda Paste**
After the vinegar has had time to sit, it’s time to apply the baking soda paste. Take your **sponge** or **scrub brush**, dip it into the paste, and gently scrub it onto areas with stubborn stains, soap scum, or mineral deposits. You may notice a slight fizzing action where the baking soda meets the vinegar—that’s completely normal and shows that the ingredients are working together.
Pay extra attention to areas with tough build-up, such as the lower parts of the door and the corners, where water often pools.
#### **Step 5: Scrub and Rinse**
After applying the baking soda paste and scrubbing the tough spots, give the entire door a good scrub using your sponge or scrub brush. Focus on the edges, where soap scum and minerals tend to accumulate. Be sure to use gentle, circular motions to avoid scratching the glass.
Once you’ve scrubbed the entire surface, rinse the shower door thoroughly with warm water. The water should help wash away the vinegar and baking soda residue, leaving your door gleaming.
**Step 6: Wipe Down the Surface**
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