I've had decent luck with a paste of cream of tartar and hydrogen peroxide. Sounds weird, I know, but it gently lifts stains without scratching up the enamel. Just mix into a thick paste, spread it on, and let it sit about 30 minutes before lightly scrubbing. Worked wonders on my grandma's old farmhouse sink—though I admit, nothing beats elbow grease and patience when dealing with vintage fixtures...
Interesting combo, never thought of cream of tartar for cleaning. I've been sticking mostly to baking soda and vinegar because they're staples around here. But honestly, sometimes those vintage fixtures seem to laugh at my DIY attempts...have you found peroxide safe on older enamel consistently? I'd worry about it dulling the finish over time, but maybe I'm overthinking it.
"have you found peroxide safe on older enamel consistently? I'd worry about it dulling the finish over time"
I've used peroxide occasionally on vintage enamel sinks and tubs—brief applications diluted 50/50 with water haven't caused noticeable dulling. But frequent or prolonged use might be riskier...I'd spot-test first to be safe.
I've had mixed experiences with peroxide on older enamel. A few years back, I was renovating this charming 1930s bungalow, and the homeowner swore by diluted peroxide for her antique clawfoot tub. It worked beautifully at first—brightened it right up—but after a year or so of regular use, she noticed the finish wasn't quite as glossy. Nothing drastic, but noticeable if you're picky. I'd say occasional use is probably fine, but for regular cleaning, maybe alternate with something gentler like baking soda paste or mild soap?
I've found baking soda paste pretty reliable too, especially on vintage enamel. Peroxide can be a bit harsh if used frequently—seen it dull finishes myself after a while. For regular cleaning, mild dish soap or even diluted vinegar (just rinse well after) usually does the trick without damaging the gloss. Natural cleaners are great, but moderation and variety seem key to preserving older surfaces.
