There may be no cleaning combination with better public relations than vinegar and baking soda.
Pour one on top of the other and your sink suddenly puts on a show. It fizzes. It foams. It hisses. Something is very clearly happening.
Which, to be fair, it is.
It’s just not necessarily cleaning.
I was recently asked about vinegar and baking soda for a Martha Stewart article about cleaning sinks. My advice was less exciting than the volcano experiment: mixing vinegar and baking soda mostly cancels them out. If you want to use both, use one, rinse it away, then use the other if you still need it.
The chemistry is pretty simple. Vinegar is acidic. Baking soda is alkaline. When they meet, they react with each other, producing carbon dioxide, which gives you all those impressive bubbles.
And I think the bubbles are the reason this cleaning hack refuses to die.
We tend to trust cleaning we can see happening.
Foam. Steam. A strong smell. A color change. Something bubbling away in the bottom of the sink.
A quiet cleaner has terrible stage presence.
I’ve written about this before in Why Your Cleaner Puts on a Show: what looks active and what actually cleans are not always the same thing. Vinegar and baking soda may be the purest example because the performance is so good.
The funny part is that if you look at the method I shared with Martha Stewart for cleaning a sink, the first step isn’t vinegar.
It isn’t baking soda either.
It’s dish soap.
Warm water and dish soap remove the grease, food residue and ordinary grime that make a sink dirty. By the time you’ve done that properly, the sink is, for most purposes, clean.
Then the celebrities arrive.
Baking soda can be useful as a mild abrasive. Vinegar can help with some mineral deposits on surfaces that tolerate acid. They each have jobs.
But somehow the pantry ingredients have gotten top billing while dish soap, which did the actual everyday cleaning, is practically a stagehand.
I find that especially funny because vinegar and baking soda are often presented as old-fashioned household wisdom. The kind of thing your grandmother knew before the cleaning aisle filled up with bottles promising to blast, fight, lift, and power through everything in their path.
But the chemistry doesn’t become wiser because it came from the pantry.
And cleaning has always had a little theater in it.
We like products that announce themselves. Suds mean working. Lemon means clean. Bleach means serious. A fizzing sink gives us a tiny chemistry demonstration right there in the kitchen.
The demonstration is real.
We’ve just mistaken the demonstration for the cleaning.
Vinegar and baking soda have managed to teach us something more interesting than how to clean a sink:
We trust what looks like work.
Sometimes it is.
And sometimes it’s just fizz.
