Few herbs feel as instantly refreshing as mint. A handful of bruised leaves, a pot of hot water, and the whole kitchen smells like coolness. In Traditional Chinese Medicine (TCM), that sensation is not just pleasant — it is the signature of a cooling, pungent herb known as bo he (薄荷), prized for thousands of years for clearing heat, freeing stuck energy, and comforting the throat.
Mint is one of the most approachable herbs in the TCM pantry. Unlike ginseng or astragalus, which take some getting used to, mint tastes good to almost everyone, grows easily, and can be used fresh from the garden or dried for tea. Yet beneath its mild flavor lies a genuinely useful medicinal profile: in TCM theory it is understood to work on the Lung and Liver channels, making it a bridge between respiratory comfort and emotional ease.
TCM Properties of Mint (Bo He)
In TCM, every food and herb is described by its nature, flavor, and the channels it enters. Mint's profile explains why it behaves the way it does:
- Nature: Cool (凉). Mint is one of the classic cooling herbs, which is why it is traditionally used when the body feels hot, restless, or congested with heat.
- Flavor: Pungent (辛) with a light aroma. Pungent flavors in TCM are understood to move and disperse — they help things that are stuck start flowing again.
- Channels: Lung and Liver. The Lung channel governs the skin and respiratory tract; the Liver channel is closely tied to the smooth flow of qi, mood, and the head and eyes.
Put together, mint's traditional actions are: disperse wind-heat, soothe the throat, clear the head and eyes, and support the smooth movement of liver qi. It is a small herb with a wide, gentle reach.
Traditional Uses in TCM
Mint appears throughout the Chinese pharmacopoeia. It was formally recorded in the Xinxiu Bencao (新修本草), the Tang dynasty's official materia medica compiled in 659 CE, and later praised by Li Shizhen in the Bencao Gangmu (《本草纲目》) for its ability to clear wind-heat and benefit the head and eyes. Over the centuries, TCM practitioners traditionally reached for bo he in three main situations:
1. Wind-Heat Colds
In TCM, common colds are divided into wind-cold and wind-heat patterns. Mint is a classic remedy for the wind-heat type — the kind that comes with a scratchy or sore throat, a mild fever, headache, and a thirst for cold drinks. Its cooling, dispersing nature is believed to push the heat outward, and it is often combined with chrysanthemum flower or honeysuckle in cooling tea formulas.
2. Liver Qi Stagnation
Stress, frustration, and irritability are understood in TCM as liver qi stagnation — energy that has bunched up and stopped flowing smoothly. Because mint enters the Liver channel and has a dispersing quality, it is traditionally used in small amounts to help qi move again. This is why you will often see a few mint leaves in calming teas designed for tense, busy days.
3. Head and Eye Discomfort
Bo he is also traditionally used to "clear the head" — it appears in formulas for headaches, red or tired eyes, and that heavy, foggy feeling behind the eyes. The aromatic, cooling nature of the herb is believed to lift heat away from the upper body.
How to Choose and Store Mint
Mint is one of the few herbs where fresh is genuinely best for everyday use, but dried mint has its own place.
- Fresh mint: Look for bright green leaves without yellowing or black spots. The stems should snap, not bend limply. Store it upright in a glass of water in the fridge, loosely covered with a plastic bag, and it will last up to a week.
- Dried mint (bo he): TCM shops sell dried bo he with the leaves still attached to thin stems. Good dried mint should smell strongly minty when you rub it between your fingers. Store it in an airtight jar away from light, and replace it once the aroma fades — usually after 6 to 12 months.
- Growing your own: Mint is famously hardy and will thrive in a pot on a windowsill. Growing it yourself guarantees a constant supply of the freshest leaves.
Practical Ways to Use Mint
Mint is versatile enough for teas, soups, and simple cooking. Here are three traditional-inspired ways to use it at home.
Simple Fresh Mint Tea
The most direct way to experience bo he's cooling character:
- Take 8–10 fresh mint leaves (or 1 teaspoon dried bo he) and rinse them gently.
- Place them in a cup and pour over 250 ml (about 1 cup) of just-boiled water.
- Cover and steep for 5–7 minutes. Drink warm, ideally between meals.
For a wind-heat cold with a sore throat, TCM tradition often adds a little honey once the tea has cooled slightly. If your stomach runs cold, add a thin slice of fresh ginger to balance the cooling nature.
Mint and Chrysanthemum Tea
A classic combination for a foggy head, tired eyes, or a stressful day:
- 1 teaspoon dried chrysanthemum flowers
- 1 teaspoon dried bo he (or 6 fresh mint leaves)
- 2–3 goji berries (optional, for a touch of sweetness)
- Steep in 350 ml hot water for 5 minutes, strain, and sip slowly.
Cooking with Mint
In Chinese kitchens, mint is used sparingly and usually at the end of cooking, because heat quickly destroys its aroma. Try adding a few leaves to a bowl of rice congee in the last minute of cooking, folding them into a cucumber salad with a little vinegar and garlic, or floating them on top of a light clear soup. A small handful goes a long way — the goal is a fresh, cooling accent, not a dominant flavor.
Who Should Be Careful With Mint
Mint is mild, but its cooling nature means it is not for everyone in every situation:
- Cold stomach and weak digestion: People who get bloated, loose stools, or a cold feeling in the abdomen from cooling foods may want to use mint sparingly, or pair it with ginger.
- Qi deficiency with easy sweating: In TCM, pungent, dispersing herbs are believed to open the pores. Those who sweat easily and tire quickly may prefer mint in tiny food amounts only.
- Pregnancy and nursing: Food-level amounts are generally considered fine, but concentrated mint oil and strong extracts should be avoided. Speak with your healthcare provider.
- Infants and very young children: Avoid applying strong mint oil or balms to the face of infants, as menthol can affect breathing in very small babies.
FAQ
Can I drink mint tea every day?
For most people, one or two cups a day is gentle and safe as part of a balanced diet. Because mint is cooling in TCM, those with a cold stomach may prefer to drink it less often or add ginger.
Does mint help with headaches?
In TCM, mint is traditionally used to clear wind-heat rising to the head, which is believed to help with certain types of headache. Its cooling aroma is also naturally soothing. If headaches are frequent or severe, seek professional advice rather than relying on herbs alone.
Is mint safe during pregnancy?
Food amounts — a few leaves in meals or a light tea — are generally considered acceptable. Strong mint oil and extracts are best avoided during pregnancy. Always check with your healthcare provider.
What is the difference between bo he and peppermint?
Bo he (薄荷) traditionally refers to Mentha haplocalyx, a mild aromatic mint used in TCM formulas. Peppermint (Mentha piperita) is a stronger hybrid, higher in menthol. Both are cooling; bo he is favored for the throat and liver qi in TCM, while peppermint is commonly used for digestion in the West.
Mint may be small and familiar, but in the TCM pantry it punches well above its weight — a cooling, dispersing herb that meets you where you are: tense, congested, or simply in need of a fresh start.