They both come from the mint family. They both brew up clear and fragrant. And if you hand someone an unlabeled cup of each, there's a real chance they'll call it "mint tea" and leave it at that. But spearmint and peppermint are not the same thing, and once you understand the differences, you'll taste them clearly every single time.
This matters for tea drinkers because the choice between spearmint and peppermint changes the entire character of your cup: how bold it is, how cooling, how well it pairs with other botanicals, and whether it feels like the right thing to drink at 7 in the morning or 9 at night. Let's get into it.
Where They Each Come From
Spearmint is the older of the two. It's a naturally occurring species, Mentha spicata, native to Europe and parts of Asia, and it gets its name from the spear-shaped leaves that make it easy to identify. Before it ever found its way into loose-leaf tea, spearmint was a staple in Mediterranean cooking — tucked into salads, stirred into drinks, and used in kitchens where fresh herbs were just part of how things were made.
Peppermint is younger, and it didn't occur in nature on its own. It's a hybrid — a cross between spearmint (Mentha spicata) and watermint (Mentha aquatica) — that emerged sometime in the 17th century in England. Its scientific name, Mentha × piperita, reflects that hybrid origin, with the × signaling a cross between two species. Because it was cultivated rather than wild, peppermint exists almost exclusively as a cultivated plant today.
So in a botanical sense, spearmint came first, and peppermint is part spearmint. That shared lineage is part of why the two look and smell similar at a glance. The differences that matter, though, are chemical.
The Flavor Difference: All About Menthol
The most important difference between spearmint and peppermint comes down to a single compound: menthol. Menthol is the molecule responsible for the cooling sensation both herbs are known for — that distinctive feeling that makes the air seem colder when you inhale after a sip. Peppermint contains roughly 40% menthol. Spearmint contains around 0.5%.
That gap is enormous, and you taste it immediately. Peppermint's high menthol content gives it a sharp, bold, intensely cooling character. It's assertive. It fills the mouth. It lingers. Some people love exactly that — the clean, brisk hit of a strong peppermint tea is genuinely satisfying if that's what you're in the mood for. But it's also not a flavor that plays well with others in a complex herbal blend. Peppermint tends to take over.
Spearmint's flavor is an entirely different proposition. Its primary aromatic compound is carvone rather than menthol, which gives it a sweetness that peppermint doesn't have. The mint character is still there — you know immediately that you're drinking something from the mint family — but it's softer and gentler, with a faintly fruity quality underneath. Where peppermint announces itself, spearmint suggests itself.
In practical terms: peppermint tea is bold enough to stand completely on its own. Spearmint tea is versatile enough to blend. That distinction shapes how each one ends up being used.
How They Look
If you're working with fresh or dried leaves, there are some visual clues worth knowing. Spearmint leaves are lance-shaped (hence the name), lighter green, slightly fuzzy on the underside, with serrated edges and a relatively smooth texture. The stems are typically a uniform green.
Peppermint leaves tend to be darker and more richly colored — sometimes with a purple tinge to the leaves and stems — and the leaf surface has a slightly crinkled, more textured quality. Peppermint plants generally look denser and more robust. Neither is a foolproof identification method on its own, but when you have both side by side, the visual differences are real.
How They Taste in a Cup
Brewed as straight single-herb teas, the contrast between the two is immediately obvious. A cup of peppermint tea is cooling and intense right from the first sip. The menthol sensation activates quickly and lingers in the throat. It's a tea with presence.
A cup of spearmint tea is mellower. The flavor is clean and herbal, with that gentle sweetness that carvone brings, and the cooling effect is there but it doesn't dominate. It feels lighter. It's the kind of tea that sits comfortably in the background of an evening, which is part of why spearmint tends to appear in blended herbal teas while peppermint is more often sold on its own.
Temperature affects both, worth noting. A very hot cup of peppermint tea will hit with even more intensity; let it cool slightly and it becomes a bit more approachable. Spearmint is relatively forgiving across a range of temperatures and takes well to cooling into an iced tea without losing its character.
When to Reach for Each One
Think of peppermint as a morning or early afternoon tea. Its intensity and bold character are genuinely invigorating in the way that feels appropriate when you're trying to wake up or need something that cuts through afternoon fatigue. It's also the obvious choice if you want a single-herb mint tea where the mint is the entire point of the cup.
Spearmint makes more sense for later in the day — and for blended teas where the mint is one element among several. Its sweeter, softer profile allows other botanicals to come through. It adds freshness and a clean finish to a blend without overwhelming the chamomile, the lavender, the rose petal, or whatever else is in the jar. That's a quality peppermint simply doesn't have.
It's also worth knowing that peppermint, for some people, can worsen acid reflux symptoms because of the way menthol interacts with the lower esophageal sphincter. If that's a concern, spearmint is generally considered the more comfortable choice.
Why Our Good Night Tea Uses Spearmint
This is the question worth asking directly, because when you look at the ingredient list for Good Night Tea — chamomile, linden flowers, spearmint, rose petals, lavender buds — spearmint might seem like an unexpected addition to an evening blend. Isn't mint a morning thing?
Spearmint specifically, no. That's exactly the distinction this post is here to make. Peppermint in a nighttime blend would be a mistake. Its menthol intensity and bold, stimulating character work against the quiet, floral softness that chamomile and lavender bring to the cup. It would take over.
Spearmint does something different. In Good Night Tea, it provides a clean, cool finish that keeps the blend from becoming one-dimensionally floral. The chamomile and linden flowers bring natural sweetness; the lavender buds add fragrance; the rose petals contribute a delicate softness. Spearmint ties it together with a cool, herbal note that makes each sip feel complete. It's the reason the blend doesn't taste like potpourri.
The proportions matter, too. Like lavender, spearmint has to be used thoughtfully in a blend. Too much and it becomes the dominant note. Enough and it does exactly what a supporting ingredient should: it makes everything else taste better.
If you haven't tried a chamomile lavender blend with spearmint in it, that's a good place to start. Our guide to chamomile lavender tea covers what makes a well-balanced blend worth drinking and what to look for in the botanicals.
A Note on Brewing
Both spearmint and peppermint are forgiving herbs to brew. For a loose-leaf herbal blend containing spearmint, like Good Night Tea, water between 195°F and 205°F works well. Steep for five to seven minutes. The spearmint flavor extracts relatively quickly, but the other botanicals in the blend need time to fully open up, so don't rush it.
For straight spearmint or peppermint tea from dried leaves, the same temperature range applies. A teaspoon of dried leaves per eight ounces of water is a reasonable starting point; adjust from there based on how strong you like it. Both herbs steep cleanly without bitterness if you pull them at the right time — peppermint can become slightly sharp if left too long, while spearmint remains gentle even with a longer steep.
If you want to sweeten either, a small drizzle of raw honey is the most natural pairing. A light floral honey — something like a Spring Honey with its delicate, polyfloral sweetness — works especially well with spearmint without competing with the herb. For peppermint's bolder character, you can go with something a bit more robust.
For a full recipe that puts spearmint in context alongside the other botanicals in our evening blend, the chamomile lavender tea recipe walks through a preparation worth trying. And for more on building an evening tea ritual around raw honey, the honey before bed guide has you covered.
The Short Version
If you're choosing between spearmint and peppermint for your tea: peppermint is bolder, more cooling, and better suited for mornings or single-herb teas where you want the mint to be the whole point. Spearmint is sweeter, softer, and well-suited for blending — which is why it's the choice in a thoughtfully made evening tea like Good Night.
They're related. They're not interchangeable. Now you know why.
Shop our full artisanal tea collection to explore Good Night Tea and our other loose-leaf blends.
Frequently Asked Questions
What is the main difference between spearmint tea and peppermint tea?
The most important difference is menthol content. Peppermint contains roughly 40% menthol, which gives it a bold, intense, and sharply cooling flavor. Spearmint contains around 0.5% menthol, making it noticeably sweeter, softer, and less cooling on the palate. Peppermint stands out in a cup; spearmint blends beautifully with other herbs.
Is spearmint tea or peppermint tea better for the evening?
Spearmint is generally the better choice for an evening cup. Its gentler character and softer menthol presence make it more naturally suited to blended herbal teas designed for nighttime. Peppermint's higher menthol content and bold intensity tend to feel more at home in a morning or daytime context.
Do spearmint tea and peppermint tea taste the same?
No. While both are recognizably minty, they taste quite different. Spearmint is sweeter and more delicate, with a clean, faintly fruity quality. Peppermint is sharper and more intense, with a pronounced cooling sensation that lingers. Once you've had both side by side, you'll notice the difference immediately.
Is spearmint tea caffeine-free?
Yes. Spearmint tea brewed from dried spearmint leaves is naturally caffeine-free, as spearmint is an herb rather than a tea plant. The same applies to peppermint tea. Both are herbal infusions, not teas from the Camellia sinensis plant. Good Night Tea, which includes spearmint as one of its five botanicals, is also completely caffeine-free.
Why does Good Night Tea use spearmint instead of peppermint?
Spearmint was chosen because its milder, sweeter flavor allows the other botanicals in the blend — chamomile, linden flowers, rose petals, and lavender buds — to come through clearly. Peppermint's intensity would dominate the cup and overpower those delicate floral notes. Spearmint adds a cool, clean finish without taking over.
Can you taste the spearmint in Good Night Tea?
Yes, but subtly. Spearmint's role in Good Night Tea is to provide a gentle coolness and a clean finish rather than to be the dominant flavor. You'll notice it as a faint herbal freshness that keeps the blend from feeling too heavy or purely floral — but the chamomile and lavender are still the stars of the cup.
