Sometimes, you’ll get a stain that looks like it’s been there since the Reagan administration. For these, you need Baking Soda Power. Make a paste of three parts baking soda to one part water. It should feel like wet sand for a sandcastle you’re building for a very patient ant. Apply it to the stain and let it dry completely (20–30 minutes). As it dries, the baking soda crystals latch onto the minerals. Then, wipe it off with a damp cloth. The stain will come off like a bad date—awkwardly and without a goodbye.
Pro tip: If you mix baking soda with a little vinegar, it fizzes like a school science volcano. It looks cool, but the real cleaning power comes from the scrubbing action, not the bubbles. Do not try to video this and post it on social media while holding your phone in your other hand. You will drop the phone into the sink. I’ve done it. The shame is real.
11+ Easy Ways to Remove Hard Water Stains from Plastic
