3. Ketchup Stains
Verdict: Some improvement. For the sake of science, I intentionally wiped a ketchup “K” onto an old t-shirt, then tried to clean it off with hydrogen peroxide and a cold-water rinse, as recommended by Thelma Meyer, author of Mrs. Meyer’s Clean Home. By the end of the day, I still had a faint K on the shirt.
4. Mustard Stains
Verdict: Some improvement. To test Mrs. Meyer’s other condiment cleaning suggestion, I squirted a spicy mustard “M” onto the same shirt. After trying to wash off the stain with the suggested solution of white vinegar, then cold water, I had a faint yellow M to match the red K.
Next: blueberry & red wine stains