I have a sister-in-law who pre-rinses every dish before it goes in the dishwasher. Every plate, every bowl, every fork. Hot water, a quick scrub, then in. By the time the dishwasher runs, the dishes are essentially clean.
I’ve stood in her and my brother’s kitchen and watched this with quiet bafflement. The dishwasher, I want to say, exists specifically so she doesn’t have to do that. The whole point is the time she saves.
Modern detergents are good. The dishwasher is doing the work.
I would never do this in my own kitchen. The dishes go in, the door shuts, the cycle runs. The few that come out still grimy go back in the next round. Done.
But I’ve started to notice something about my sister-in-law, which is that she lives a quieter life than I do. Her mornings are less frantic. Her counters are clean. She does not, as I sometimes do, open the dishwasher mid-week to find a forgotten skillet welded to a casserole dish.
The pre-rinse, it turns out, isn’t really about the dishes. It’s about something much harder for the rest of us to see.
The dishwasher thing isn’t really about the dishes
If you ask a pre-rinser why they do it, you’ll get answers about cleanliness or about how their grandmother always did it that way. But push a little, and the real answer surfaces.
They do it because tomorrow morning, when they open the dishwasher to unload it, they want everything to be clean. They want the small pleasure of dishes that don’t need re-washing. They want their morning self to walk into a clean kitchen and not have to make any decisions about the casserole dish that didn’t quite get there.
The pre-rinser isn’t really cleaning a plate. They’re sending a small package forward in time, addressed to themselves.
They’re doing favors for someone who isn’t here yet
There’s a whole body of psychological research on what happens in our brains when we think about our future selves, and it’s stranger than you’d expect.
In a Hidden Brain conversation, the UCLA psychologist Hal Hershfield describes a series of fMRI studies he and his collaborators ran years ago. When people thought about themselves in the present, certain regions of the brain lit up in a pattern associated with self-reference. When they thought about themselves in the future, those regions looked more like the pattern you get when people think about someone else entirely. The future self, on a brain level, looks like a stranger.
Hershfield’s argument is that this explains a lot of human behavior. We undersave, overeat, skip the gym, and procrastinate on everything important, not because we’re weak or stupid, but because the future self who will pay for these decisions feels, neurologically, like a different person. Why would you sacrifice for a stranger?
People who pre-rinse have somehow shortened that gap. The future version of themselves who will open the dishwasher tomorrow morning isn’t a stranger to them. It’s still them. So the work is worth doing.
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Most of us hand the work to tomorrow’s self
The opposite orientation is the one most of us live in. We scrape the plate, we put it in, we close the door, we walk away. If the dishes don’t come out clean, that’s a problem for tomorrow.
This is the default mode of most adult life. The clothes that get thrown over the chair instead of being hung up. The receipts get shoved into a drawer instead of being filed. The email gets starred for later.
We aren’t being lazy, exactly. We’re just operating on the assumption that tomorrow’s version of us will somehow be better equipped to handle these things than today’s version is. They’ll have more time. More energy. More motivation. They’ll have figured something out.
But tomorrow’s self, when it arrives, is just us with less sleep and a longer to-do list. The work doesn’t get easier in transit. It just gets passed forward.
The pattern extends past the kitchen
Once you start noticing the pre-rinser mind, you see it everywhere.
The pre-rinser is also the person who lays out their clothes the night before. Who packs the lunch before bed instead of in the morning. Who puts gas in the car when it hits a quarter tank, not when the light comes on.
Each of these is a tiny self-imposed inconvenience now, in exchange for a smoother future. None of them is heroic. None requires willpower the way exercise or saving for retirement does. They’re micro-decisions, the kind you make ten or twelve times a day without really thinking about them.
But the pattern is consistent. People who rinse beforehand always ask the same question: Will future me be glad I did this? And if the answer is yes, they do it.
They pay the small cost now to skip the bigger one later
There’s a phenomenon in behavioral economics called delay discounting, and it explains most of what goes wrong with the rest of us. A Greater Good piece on prospection walks through it: when given a choice between a smaller reward now and a larger reward later, most people pick the smaller reward. Not because the larger one isn’t better. Because the delay makes it feel less real.
The researchers found that when people could vividly imagine the future reward—picturing a specific moment in detail, like spending money at a particular pub 180 days from now—the delay discounting effect weakened. The future stopped being abstract. Once it was vivid, people became more willing to wait for the bigger payoff.
This is the whole orientation of someone who pre-rinses, applied to dishes. The cost now (thirty seconds at the sink) is small. The cost later (re-washing a casserole dish at 7:14 AM when you’re trying to leave the house) is bigger, more annoying, and arrives at exactly the worst time.
The pre-rinser has done the math, even if they wouldn’t put it that way. They’ve picked the smaller, earlier cost over the larger, later one.
The rest of us pick the smaller, earlier convenience, and then pay the larger, later cost without quite noticing we agreed to the trade.
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It adds up faster than you think
If this were just about dishwashers, it wouldn’t be worth writing about.
But here’s the thing: the pre-rinser does this hundreds of times a day, across hundreds of small domains. They put their keys on the hook so they’re not searching tomorrow. They close the loop on the medical bill so it’s not hanging over their heads.
None of these is impressive in isolation. But over a year, the difference between a pre-rinser life and the rest of our lives is enormous. They aren’t smarter or more disciplined. They’ve just developed a relationship with their future self that the rest of us haven’t.
The version of them that wakes up tomorrow morning isn’t a stranger. It’s a friend, a loved one, and a roommate they want to be considerate to. So they do the small thing now.
I am still not going to pre-rinse my dishes. But I am, lately, starting to wonder what I’m handing over to tomorrow-me without asking her if that’s okay.
