Cleaning windows and glass without leaving streaks can be a challenging task. Supermarket shelves are packed with products claiming to deliver a crystal clear finish, but many contain harsh chemicals. For those seeking a natural alternative, vinegar is a well-known non-toxic and budget-friendly option. However, there is another kitchen essential that professional cleaners claim outperforms vinegar: a homemade glass cleaner made from used black tea bags.
The Secret Ingredient for Streak-Free Windows
Professional cleaning service Crowd Cleaners revealed that after years of experimentation, they discovered the secret to streakless windows. The key ingredient is black tea bags. According to the cleaners, you need 10 to 15 used black tea bags, ensuring they are removed from the brew before adding milk. Milk can leave a residue that makes glass cloudy.
The DIY cleaner is simple to make. Collect tea bags as you consume them throughout the week. Boil about 300ml of water and add the used teabags. Then, add 20-50ml of standard glass cleaner. Pour the mixture into a spray bottle, and your DIY glass cleaner is ready.
How to Clean Windows Without Streaks
Follow these steps for best results:
- Spray the glass generously with your DIY cleaner.
- Using the soft side of a sponge, lightly go over the glass surface, paying special attention to smudges or greasy areas.
- Rinse the glass with hot water and spray again.
- Dry the glass using a squeegee or newspaper.
For squeegee use, start from the top right corner, drag horizontally across the top in a rainbow shape, then drag down. Apply the right amount of pressure to avoid streaks. You may need to repeat the process two or three times for crystal clear glass.
When using newspaper, keep the glass from getting excessively wet. Use at least three or four sheets at once, ensuring no creases. Place the newspaper on a top corner, apply pressure, and drag slowly down. Lightly wet the glass and repeat if needed. For small smudges, rub firmly with newspaper to break down grease and dirt.
This natural method is effective, eco-friendly, and cost-saving, making it a great alternative to commercial cleaners.



