This Fall Comfort Food Actually Tastes Better the Next Day—Here’s What Should Be in Your Leftover Stash
With daylight saving now in the rearview mirror, it’s tough to drum up the energy to make dinner every night when it’s fully dark out before 5 p.m. At this time of year, I often lean on recipes that will feed my family for two or three nights as opposed to just one, and as it turns out, one of my favorite fall comfort foods actually tastes better on Day 2 and beyond.
I swear, it’s not just my imagination—or my brain doing overtime to make me feel better about my lack of motivation. In fact, I got corroboration from Helen Rennie, the owner of Helen’s Kitchen Cooking School and the author of the forthcoming cookbook The Science of Dinner, who said there’s a definite culinary benefit to letting that soup sit. Translation: Make a big batch, eat it for days and don’t feel one bit guilty about it.
Read on to find out why she says this dinnertime staple is best eaten after it spends some time in the fridge.
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Which fall comfort food actually tastes better the next day?
Soup! There are a few reasons why this happens, but a big part of it involves the role of smell and how you experience taste because of it. Research shows that between 75% and 95% of what we think of as taste actually comes from our sense of smell. Um, OK, but what does this have to do with leftover soup? “Sometimes it’s not the soup that’s different the next day but how your brain registers the smell,” Rennie says.
Let’s say you’re in the kitchen while your soup is simmering away, and your nose is picking up on the delicious aromas the entire time. “The problem is that you get acclimated to them,” Rennie explains. “Our brains are built to notice the difference in smell, not just the presence of smell. When you reheat the soup the next day, your sense of smell is reset, and all the aromas in your soup are new and exciting to your nose and brain again.” The result, in many cases, is that the flavors taste bigger and bolder than they did the first time.
But that’s not all: The ingredients you put into the soup interact with one another and evolve over time. When you make something savory (like most soups), the two tastes that most impact the flavor are salt and acidity. “If your soup will be pureed, the salt will be evenly distributed,” Rennie says. “But if your soup is chunky, the salt will need time to absorb into your ingredients. As the soup rests, salt and acid can redistribute between the broth and the solid ingredients, changing how each component tastes.”
In other words, letting your soup spend a night in the fridge will allow the flavors to mix and mingle in a way that makes them taste that much better the next day.
What soups does this work best with?
As noted above, you’re going to see the most noticeable improvement in taste in chunky soups and stews that you refrigerate overnight. For pureed soups, “a long resting period will not result in any improvement in taste,” Rennie says, since the original blending process evenly distributes all the ingredients and seasonings. That doesn’t mean a bisque will taste bad as leftovers; it just won’t be obviously better.
If your soup contains rice, noodles, delicate greens or fresh herbs, consider storing those items separately from your leftover soup and adding them during reheating. Rennie notes that rice and noodles can get mushy if they’re left in the broth, while greens and herbs can lose their bright color and fresh aromas during storage—all of which can make for a lesser soup-eating experience the next day.
The same is true of fish. “If you are making a fish soup, you can make stock days in advance, but don’t add the fish fillets to the soup until right before serving,” Rennie adds. “Rewarming soup with fish can result in overcooking.”
How long can you eat leftover soup?
“Most soups keep well in the fridge for up to five days,” says Rennie. That’s on the long end in terms of how long most leftovers last, which is another bonus. There’s no peak time to reheat and serve soup to maximize the flavor, but you may need to adjust the salt or acidity (with a splash of lemon juice or vinegar) as you get to days three, four or five.
The exceptions to this rule, Rennie says, are fish soups, which keep for only two days in the fridge, and cold soups that contain raw ingredients, which keep for just one. That said, most soups last in the freezer for two to three months, Rennie notes.
Is leftover soup healthier than the fresh-off-the-stove batch?
You may know that pasta and rice are healthier as leftovers, thanks to the development of something called resistant starch during the cooling process. Resistant starch contributes to a healthier gut microbiome, better blood-sugar control, lower cholesterol and higher feelings of satiety. While pasta and rice are the biggies, beans, lentils and potatoes also develop resistant starch during cooling, so if your soup contains any of these ingredients you are going to reap these benefits.
Otherwise, soup isn’t going to be any healthier (or unhealthier, for that matter) on subsequent days than it was on the first.
Are there any potential dangers to eating leftover soup?
There’s nothing dangerous about reheating and eating leftover soup—as long as you’re cooling and storing it safely. You can’t finish making a batch and immediately put that hot pot of soup in the fridge, Rennie says, because it can warm your entire fridge to a temperature that puts all of your food in the danger zone for bacterial growth. (That’s between 40 and 140 degrees Fahrenheit, by the way.) But at the same time, you can’t leave the soup out for hours and hours until it’s cool enough to put in the fridge, since that would likely mean it’s spending quite a bit of time in that dangerous temperature range.
The sweet spot, according to Rennie, is cooling your soup at room temperature for two to four hours after you finish cooking it before transferring it to the fridge. “If you want to speed up this process, set the pot into a clean sink filled with ice water and stir the soup frequently,” she suggests.
What’s the best way to store soup?
If you can’t put your whole pot of soup in the fridge, here’s what to do.
- Divide it up. Store the soup in smaller containers that make sense for your family. “A pint will typically serve one, a quart will serve two, and two quarts will serve four people,” Rennie says. “Portioning soup into containers will help it cool faster and will free up space in your fridge after every meal of soup.”
- Don’t cover containers right away. After you split the soup into containers, place them in the fridge uncovered until the soup is cold. “This will help cool the soup faster and prevent moisture from condensing on the lid,” Rennie explains.
- Keep mushy and delicate ingredients separate. I mentioned this earlier, but if you’re making a soup with noodles, rice, fresh greens or fresh herbs and you plan to eat the leftovers for a few days, consider cooking the noodles or rice separately and adding them to the soup by the serving to avoid mushiness. Likewise, add fresh greens and herbs during reheating so they don’t lose their flavors.
- Don’t freeze potatoes. Chunks of potatoes get spongy in the freezer, so soups like chowders that contain them are best kept in the fridge. “Pureed potato soups can become grainy after freezing and might need re-blending,” Rennie adds.
Sources:
- Helen Rennie, cooking instructor, owner of Helen’s Kitchen Cooking School and author of The Science of Dinner; email interview, Nov. 3, 2026
- BMC Flavour: “Just how much of what we taste derives from the sense of smell?”
- USDA Food Safety and Inspection Service: “Danger Zone”
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