By Moonroot, blended by hand.
The first Inner Ease I brewed came out flat.
I spent about three weeks convinced it was the ratios. Moved the chamomile down, put it back, changed the rose, changed the water, made one version with twice the spearmint that was honestly worse. The chamomile was doing its job. The honey and the hay were there. The cup just sat there not really going anywhere, and by the end of it I was fairly annoyed with the whole blend.
Then I opened the lemon balm bag properly and paid attention to it, and there was almost nothing coming off the leaf at all.
That lot had come out of an open sack at an attari, which is how most people here start. It's cheap, it's five minutes away, and for working out whether an idea has legs it's completely fine. What I got out of it was the rule I now apply to every herb that comes through the door. If a dried herb smells weak, that is not a ratio problem. That is a storage problem, and you can reformulate around it for a month and never fix it.
Open-market lots have no batch consistency, no traceability, a fair amount of dust, and no certificate of analysis. We stopped buying that way for production.
So this is a post about lemon balm, but it's mostly about why that first cup was flat.
Melissa officinalis
It's a mint, so the relatives are spearmint, lavender and marjoram. Perennial, gets to about a metre. The leaf is a short wrinkled heart, deeply veined, a bit puckered. Small white flowers late in summer, and the bees find them within a day or so.
Southern Europe and western Asia originally, although it's been grown in gardens in so many places for so long that the native range is blurry.
It's the leaf you want. Not the flower, not the stem, though stem is what plenty of suppliers will send you.
There's one structural thing about the leaf that explains nearly everything else. Argyropoulos and Müller put it under a scanning electron microscope and found the oil glands sitting on the lower epidermis, meaning the underside, on the outside of the plant rather than tucked away inside it. It's why you get lemon the second you brush past a living plant. It's also why the smell is so easy to lose.
Fresh leaf is 73 to 80 per cent water, so it has to go in to dry the same day it's cut.
Why it's called Melissa
Nothing in the name is about lemons. Melissa is Greek for honeybee, from meli, honey. It's short for melissophyllon, bee leaf. Dioscorides uses that name in the first century and the early botanists wrote down the reason without much ceremony, which is that bees like it. Pliny calls it apiastrum, from apis. Gerard, in 1597, passes on the trick of rubbing the leaves inside a hive so a new swarm settles instead of moving on.
Officinalis isn't praise, incidentally. It refers to the officina, the store room of a monastery or an apothecary. A plant that got kept on the shelf.
The Arabic names go the same way. Turunjan (ترنجان) is the usual word and the species is al-turunjan al-makhzani (الترنجان المخزني), where makhzani is carrying exactly the thought that officinalis is. You'll also see hashishat al-nahl (حشيشة النحل), the bee herb, which gets to the Greek idea on its own.
In the medieval medical books it's badharanjbuya (بادرنجبويه), borrowed out of Persian. Useful word if you ever want to read the old entries themselves instead of what gets written about them.
What you're actually buying
In 2022 a group in Iran ran DNA barcoding on material being sold as badranjboye and published it in BMC Plant Biology. What came back wasn't one substitute plant. It was four genera: Dracocephalum, Hymenocrater, Nepeta and Stachys. All mints, all perfectly plausible as a grey-green aromatic dried leaf, none of them Melissa officinalis. That's one market and one study and I wouldn't stretch it any further than that, but it's the same wall we ran into writing about chamomile. A local name isn't a species, and nobody behind a counter is obliged to know the difference.
The other mix-up catches people constantly. Lemon verbena, Lippia citriodora, isn't a mint at all. Different family, and it's a shrub. Its lemon is sharper and more perfumed and it does something different in a blend. The leaf tells you immediately which one you have. Lemon balm is a short wrinkled heart, lemon verbena is a long smooth blade. Hold one of each once and you won't confuse them again.
So I ask for the botanical name in writing, Melissa officinalis L., leaf, and I see and smell a lot before I pay for it. We haven't had ours sequenced and I'm not going to imply we have. What I do check is at the bottom of this.
The standard, and why two different numbers float around
Lemon balm has an entry in the European Pharmacopoeia, monograph 1447, Melissa leaf. The minimum is 1.0 per cent rosmarinic acid in the dried leaf.
Rosmarinic acid is what the standard hangs on now. The useful thing about it is that it doesn't evaporate. It's named for rosemary, where it was found first, and it turns up right across the mint family.
The odd thing about this monograph is that the measuring stick has been changed twice. It used to be essential oil content, the way chamomile and valerian still are. That got dropped in favour of a figure for total hydroxycinnamic derivatives, read by colour on a spectrophotometer and expressed as rosmarinic acid, with a minimum of 4.0 per cent. The current one asks for rosmarinic acid on its own, by HPLC, minimum 1.0 per cent.
So you'll see both 1 per cent and 4 per cent quoted as the minimum, sometimes within the same hour of reading. They don't contradict each other. The old figure counts a whole family of related compounds and the new one counts a single compound, so the old number was always going to be bigger. When EFSA assessed a melissa extract in 2020 they found rosmarinic acid by HPLC came to about a third of what the producer was calling total hydroxycinnamic derivatives, which gives you a rough sense of the gap between the two.
Decent leaf runs well above the floor anyway. Surveys of melissa collections report several per cent, and the first cut of the season usually beats the second.
There's almost no oil in it
This is the part that surprises people. Argyropoulos and Müller measured fresh material at around 0.3 mL per 100 g of dry matter. A separate study across a range of drying treatments came out between 0.08 and 0.3 per cent by volume, averaging 0.22.
Chamomile has to hold at least 4 mL per kilo to meet its own monograph. Lemon balm at its best is about there and frequently under it. It's part of why melissa essential oil costs what it does, because you need a frankly enormous quantity of leaf for a very small bottle.
The lemon comes from two closely related compounds, neral and geranial, known together as citral. There isn't much of it, it sits on the outside of the leaf, and it leaves at the first opportunity it gets.
Which is why that first cup was flat. There was never much margin in the herb, and whoever dried and stored that lot had already spent it.
What drying does to the lemon
Argyropoulos and Müller dried lemon balm in hot air at everything from 30°C up to 90°C and followed the oil down. By 60°C they'd lost around 65 per cent of it. The losses follow first-order kinetics, with the rate climbing with temperature the way any reaction does, and some of it is just mechanical, because the leaf shrinks as it dries and the cells holding the oil rupture.
A second study asked a better question, which was not how much survives but what. Dried in an oven at 55°C, the lemon notes weren't reduced. Neral, geranial and neryl acetate had gone from the oil completely. What was left was mostly the heavy end, β-caryophyllene and γ-cadinene, which don't smell of lemon in any way. The leaf still has an aroma after that. It just isn't the one you were buying.
The guidance that comes out of this is a ceiling of 40°C for forced air. There's a 2025 trial at 20, 35, 42 and 49°C that got the best yield at room temperature, but those leaves browned, because they sat damp for so long, and it settled on 42°C as the workable compromise. Rosmarinic acid drops at high drying temperatures as well, so the oil isn't the only thing being spent.
There's a real trade-off buried in that. You can protect the lemon or you can protect the colour, and whoever dried your lemon balm already made that call on your behalf, whether or not they'd describe it that way.
So I ask how a lot was dried and at what temperature, and I want a number back rather than a word.
What the old books say, and what we're allowed to say
History here, not advice, and none of it describes our tea.
The oldest record isn't even medical. It's agricultural, a plant grown near hives and rubbed on them to keep the bees at home. For a long stretch of its written life that's all lemon balm was.
It turns up later across the major compendia. A 2016 review in the Journal of Ethnopharmacology follows it from Dioscorides through Ibn Sina's Canon, al-Razi's al-Hawi and Jorjani's Zakhireh Kharazmshahi. Roughly a thousand years of physicians writing down the same plant under the same borrowed Persian name, mostly among the herbs for the spirits and for a troubled stomach.
It has a formal standing in Europe now and it's narrower than it sounds. The European Medicines Agency lists melissa leaf preparations as a traditional herbal medicinal product. That category rests on decades of documented use rather than on clinical trials, and it belongs to registered medicines that meet pharmaceutical quality rules and carry a regulator's approval.
Inner Ease is a food. None of that language describes it and you won't find it on our box.
Underneath all of it there's the plain version anyway, which is that lemon balm is a kitchen herb. Used fresh, for lemon scent, where a lemon wasn't to hand or wasn't wanted. That use never stopped and I doubt it will.
I'll leave the rest of the old entries to the books that hold them. Some of what circulates about this plant online, and the one you'll meet most often has a famous physician calling it an elixir of life, traces back to nothing I could verify. So it isn't here.
What good lemon balm smells like
A honey-scented mint leaf with a bright green lemony lift, like warm lemon nectar. When a lot smells like that, a heavy blend comes alive the moment you add it.
It isn't lemon exactly. It's rounder and softer than a lemon, closer to peel and nectar than to juice, and there's mint underneath it because it is one. Crush a piece between your fingers and it sharpens for a second before it fades again.
Brewed on its own it's shy. Pale gold-green, no acidity to speak of, a bit of grass underneath. People who come to it expecting a lemon tea are usually surprised by how little it asserts itself.
Taste it hot, then again once it's down to around 40°C. The cooled cup is the honest one. Tired lemon balm has vanished completely by then and what's left tastes of hay, which is exactly what my flat Inner Ease was doing. I should have caught it a lot sooner than I did.
Why there's a gram of it in an Inner Ease bag
A bag of Inner Ease holds 1.40 g of chamomile flowers, 1.00 g of lemon balm, 0.25 g of spearmint, 0.14 g of damask rose petals and 15 mg of saffron. That adds up to 2.805 g, which we round to 2.80 on the box.
Lemon balm is a bit over a third of it, so it's second by weight. In terms of what it's actually for, it's first.
Chamomile is the floral base and it's the right base, but left on its own it closes over. It sits heavy and goes slightly dull by the bottom of the cup. The lemon balm is what holds the top of the cup open. Once I'd finally got hold of a lot that smelled the way it should, the flatness I'd spent three weeks chasing simply wasn't there any more, and the ratios I ended up with were nearly the ones I'd started with.
It does have to be a full gram. The leaf holds so little oil to begin with, and so much of that is gone by the time it's been dried and shipped and sat in a jar, that a pinch of it does nothing at all. It isn't a herb you season a blend with.
Inner Ease is meant for the afternoon. A work break, a study break, something you drink and then get on with your day. That's part of why the lemon balm sits this high in it and why there's no valerian anywhere near it. Quiet Moon is the one built for the end of the evening and the valerian in it is doing a completely different job. There's lemon balm in that blend too, a little lower at 0.85 g, keeping the earthiness of the root off the top of the cup.
We haven't had our lemon balm tested for rosmarinic acid or oil content. I'd rather write that down than let anyone assume there's a certificate that doesn't exist.
Brewing
250 ml at 90°C over one bag, saucer on top, five minutes, then take the bag out. The brewing guide goes through the method properly.
The saucer matters more with this herb than with anything else we blend, for the reason the whole post keeps coming back to. What you're drinking it for is volatile and it leaves with the steam. An uncovered cup of lemon balm is a cup you've poured half of into the room.
Water straight off a rolling boil is the other way to throw it away. Let the kettle stand a minute.
It won't turn bitter the way valerian does if you forget about it. It goes flat and vegetal somewhere past seven minutes, and once the lemon's gone no amount of honey is bringing it back.
How I check a lot now
Colour is the first thing, because you can judge it from across a room. Good dried lemon balm is green. Soft and grey-toned, but recognisably green, with the leaf shape still readable in the pieces. Brown or khaki or olive-drab means it was dried too hot, or dried too slowly, or kept too long. Drying studies track browning as a measurable index, which is a more formal way of saying what your eye already knows.
Then smell it. Honey, mint, that green lemon lift, and it should reach you before you lean in. Crush a leaf between finger and thumb and it should sharpen. If crushing it gives you nothing, the citral is gone and no brewing method is getting it back.
Then look at what else is in the bag. Thick stem is filler and holds almost no oil. Fine dust at the bottom means it's been ground, or handled roughly, and once it's that small there's nothing left to check.
The written spec, for anyone who wants it: a clean coarse tea-bag cut between 0.5 and 3.0 mm, never powdered, with the micro-fines under 0.5 mm sifted out. Moisture under 10 per cent on arrival. A certificate of analysis for the lot with the botanical name on it.
That last one is the thing the open sack couldn't give me.
You can run the first three checks on an Inner Ease bag held up to the light. Whole chamomile heads, curled green leaf, flecks of spearmint, pink rose petals, red threads of saffron. It's why we use a clear pyramid.
Keep it sealed and dry and cool and out of the sun. Lemon balm carries on losing what it has long after it's been dried, which is the argument for buying small amounts of it and actually using them.
Questions people ask about lemon balm
What is lemon balm?
The leaf of Melissa officinalis, a perennial in the mint family from southern Europe and western Asia. The name is Greek for honeybee, because bees work the flowers. It's the dried leaf that goes into tea.
Is lemon balm the same as lemon verbena?
No, and they aren't closely related. Lemon balm is Melissa officinalis, mint family, short wrinkled heart-shaped leaves, soft lemon scent. Lemon verbena is Lippia citriodora, verbena family, long narrow smooth leaves, a sharper and more perfumed lemon. Go by the leaf rather than the label.
What does lemon balm tea taste like?
Mild, faintly lemony, with no sourness at all. Pale gold-green and a bit grassy underneath. Gentler than the dried leaf leads you to expect.
Does lemon balm tea have caffeine?
No. It's a herb rather than a tea leaf, so there's none in it and none in Inner Ease.
What's the pharmacopoeia standard for lemon balm?
The European Pharmacopoeia, monograph 1447, asks for at least 1.0 per cent rosmarinic acid in the dried leaf. An earlier version asked instead for at least 4.0 per cent total hydroxycinnamic derivatives by spectrophotometry, which is why two figures are still quoted.
Why doesn't my lemon balm smell of lemon?
Most likely it was dried too hot. The lemon comes from neral and geranial, which sit in glands on the underside of the leaf and go quickly with heat. In one study, drying at 55°C took them out of the oil entirely. Age and poor storage do the same thing more slowly.
Inner Ease is our everyday blend, with a gram of lemon balm in every bag. Meet Inner Ease
Safety. Herbal infusion. Not intended to diagnose, treat, cure or prevent any disease. If you are pregnant, breastfeeding, taking medication, preparing for surgery, or managing a medical condition, consult a healthcare professional before use. Keep out of reach of children.
Contains chamomile. Avoid if allergic to ragweed, daisies, chrysanthemums or marigolds.