Mugicha: The Japanese Barley Tea That's Been in the Fridge for 1,000 Years

Pull up a chair, honey. Let me tell you about one of my favorite summer finds. The first time I tasted mugicha, Japanese roasted barley tea, I was sitting in my daughter's Tokyo apartment in the mid-90s. She handed me a glass of something cold and slightly amber, and I thought, well, this is unusual. Nutty, a little bitter, a little sweet. No caffeine. No fuss. Just grain and water and something honest about the whole thing.

Back home in France we had our tisanes, of course. But this was different. Mugicha tasted like a summer afternoon felt. I have been making it every July since.

What Exactly Is Mugicha, and Why Is It Not Really Tea?

Here is the thing: mugicha is not tea in the botanical sense. There is not a single leaf from the Camellia sinensis plant in it. Mugicha (麦茶) is made by roasting whole barley grains until they turn dark and fragrant, then steeping them in hot or cold water. The Japanese word breaks down simply: mugi means barley, cha means tea. Back in my day we just called that an infusion, sweetheart.

But nobody in Japan calls it an infusion. They call it tea, they drink it by the pitcherful, and they have been doing so for a very long time.

The roasting is everything. Raw barley tastes like raw grain. Roasted barley tastes like a warm kitchen. The Maillard reaction, the same browning chemistry that makes bread and coffee so aromatic, turns the starches and proteins into dozens of flavor compounds: roasted, slightly caramelized, faintly bitter, gently sweet. No two roasts are identical, which is why mugicha from a Japanese convenience store tastes a little different from homemade.

A Thousand Years of Mugicha: Where the Tradition Comes From

Most beverages become traditions because they are cheap, practical, and taste good. Mugicha checks all three boxes, and it has been checking them for a very long time.

From the Imperial Court to Every Kitchen in Japan

The earliest records of roasted barley being steeped as a drink come from Heian-period court documents, which puts the practice at close to a thousand years old. Back then it was a luxury item, prepared and served with some ceremony.

By the Edo period (roughly 1600 to 1868), mugicha had come down from the aristocracy and spread to ordinary households and street vendors. Street stalls called mugichaya, literally "barley tea houses," served cold mugicha to passersby in summer. It was the iced tea of its era, right down to the seasonal ritual of it.

Today in Japan, mugicha is simply part of summer. Families keep a big pitcher of cold mugicha in the fridge from June through September, the same way Americans keep a pitcher of lemonade. Children bring it to baseball practice. Restaurants serve it for free instead of water. Vending machines sell it in cans and bottles year-round.

Korea and China Have Their Own Versions

Japan is not alone in its love of barley tea. Korea has boricha (보리차), which follows the same principle: roasted barley, steeped in water, served hot or cold. Korean families often use boricha instead of plain water at the table. In China, the equivalent is dàmài-chá (大麦茶), popular in northern regions and in areas with historical ties to Korean and Japanese culinary traditions.

The core preparation is the same across all three cultures. The small differences come from roast levels, whether the barley is hulled or unhulled, and how long you steep. If you ever visit East Asia and somebody puts a slightly amber, grain-scented drink in front of you at a meal, now you know what it is.

What Does Mugicha Actually Taste Like?

This is the question that stops people. Tea lovers who are used to green tea, oolong, or black tea sometimes find mugicha a little disorienting at first, because there is nothing floral, grassy, or tannic about it.

Mugicha tastes like roasted grain, warm and slightly sweet, with a mild bitterness that never turns sharp. Think of the smell of a bakery in the morning: that toasty, caramelized quality is exactly what is in the cup. Hot mugicha is comforting in the way a good bowl of porridge is comforting. Cold mugicha is refreshing in a way that cold green tea cannot quite replicate, because the roasted notes stay very clean without any astringency.

Some people compare it to weak coffee without the caffeine. That is not entirely wrong, and it explains why a few American brands have started marketing roasted barley beverages as coffee substitutes. Granny finds that comparison a bit of a stretch, honestly. It is its own thing. Give it the respect of tasting it on its own terms.

How to Brew Mugicha: Hot and Iced, Step by Step

Mugicha is one of the most forgiving brews you will ever make. No precise temperature to hit. No risk of bitterness from boiling water (the barley is already roasted, it can handle it). Just a few minutes and a pitcher.

Hot Mugicha on the Stovetop or in a Kettle

This is the traditional method and it takes about ten minutes total. Bring fresh water to a full boil. Add your roasted barley: roughly one tablespoon of loose roasted barley grains per 8 ounces of water, or follow the package directions if you are using bags. Simmer gently for 3 to 5 minutes. Remove from heat and let steep another 2 minutes if you want a stronger cup. Strain into your mug or pour straight from the teapot if you have a built-in infuser. Drink immediately or let it cool.

In Japan, many households use teabags for convenience. The loose grain method gives you a bit more control over intensity, but the bags are not inferior, they are simply faster. Both are perfectly fine.

Cold Brew Mugicha: The Summer Method

This is how most Japanese families make it, and once you try cold brew mugicha barley tea on a hot day you will understand why. The cold water extraction is slower but produces something exceptionally smooth.

• Fill a pitcher or large glass jar with cold or room-temperature water (about 1 liter is a good starting amount).
• Add 2 to 3 mugicha bags or 3 tablespoons of loose roasted barley.
• Place in the refrigerator for 6 to 8 hours, or overnight.
• Remove the bags or strain out the grains.
• Serve over ice in a tall glass.

That is truly all there is to it. The cold water pulls the roasted, slightly sweet flavor from the barley without extracting as much bitterness. The result is gentle and deeply refreshing. No heat involved at all.

Quick Brew Over Ice

If you forgot to cold-brew overnight and need mugicha in 10 minutes, there is a third method: brew a strong hot concentrate (double the usual amount of barley to half the usual water), steep for 5 minutes, then pour directly over a glass packed with ice. The ice dilutes and chills it simultaneously. This gives you a good result quickly, though the cold brew version has a softer quality that the quick method does not quite replicate.

Loose Grain vs. Teabags: Which Should You Buy?

This is a practical question and Granny will give you a practical answer. Mugicha teabags are extremely convenient. They are what most Japanese households use on a daily basis. The quality of pre-packaged mugicha bags from reputable Japanese brands is genuinely good. Nothing to apologize for there.

Loose roasted barley grains give you more flexibility: you can adjust the amount, experiment with steeping time, and if you find a good source of freshly roasted barley you will notice the difference in depth of flavor. The roasted notes are brighter when the grains are fresh.

One thing to look for on the package: some mugicha products mix roasted barley with roasted corn or other grains. That is not wrong, but it gives you a slightly different flavor. Pure roasted barley mugicha has a cleaner, more focused grain character. Read the ingredients once, then you will know what you are buying.

For loose grains, a teapot with a proper infuser makes all the difference. You want to see the amber color build as it steeps, and you want clean, easy straining. I have been using a glass teapot for years for exactly that reason.

Caffeine-Free and Good for the Whole Family

This is genuinely one of mugicha's strongest points, not just a selling line. Because mugicha comes from roasted barley grain and not from tea leaves, it contains no caffeine at all. Not a trace. This makes it suitable for children, for people who are sensitive to caffeine, for anyone who wants something warm or cold to drink in the evening without disrupting their sleep, and for the growing number of people trying to reduce their coffee consumption without switching to plain water.

In Japan, mugicha is considered perfectly appropriate for babies and toddlers once they have started solid foods. Parents dilute it and serve it slightly warm. I find that rather charming, honestly.

Storing Mugicha and Getting the Most From Your Batch

Mugicha brewed hot can sit at room temperature for a few hours, but refrigerate any leftovers promptly. Cold-brewed mugicha keeps well in the refrigerator for up to 3 days in a clean, sealed pitcher. After that the flavor starts to go flat and a little musty. Make smaller batches if you live alone; make larger ones if you have children around in summer, they will empty the pitcher faster than you expect.

Dry roasted barley grains and unopened mugicha bags keep well in a cool, dry cupboard for many months. Once you open a bag of loose grains, store them in an airtight container. The roasted notes fade over time when exposed to air, the same way roasted coffee beans lose their fragrance once the bag is open.

A good glass pitcher with a tight-fitting lid is honestly the best vessel for keeping cold-brewed mugicha fresh. It lets you see the color, keeps out fridge odors, and goes straight to the table without any fuss. We didn't have all this choice in the 70s, but I will admit a pretty glass pitcher does make it feel like more of a ritual.

Why Mugicha Belongs in an American Kitchen Right Now

Here in the United States, mugicha barley tea is still under the radar for most households. That surprises me every summer, because the timing is perfect. Americans are looking for flavorful alternatives to sugary sodas and energy drinks. They are paying attention to caffeine intake. They want something simple, with a short ingredient list and a long history behind it.

Mugicha is all of those things. One ingredient: roasted barley. Zero caffeine. A flavor that is interesting enough to hold your attention without being demanding. You can serve it to guests who do not drink tea without any explanation needed. Most people's reaction is immediate and positive, which, believe me, is not something you can say about every unusual drink you put in front of a houseful of Americans.

There is also something to be said for the ritual. Cold-brewing a pitcher of mugicha the night before, pulling it from the fridge in the morning, pouring a glass before the heat of the day sets in. That is the opposite of grabbing an energy drink on the way out the door. It is slow, intentional, and it costs almost nothing. I think that matters right now.

And for the record: mugicha is not just a summer drink. Hot mugicha in a good glass teapot on a cold January evening is a completely different and equally worthwhile experience. Once you have it in the house, you will find yourself reaching for it year-round.

"Mugi no hana sakeba, mugicha no kisetsu." (When barley flowers bloom, mugicha season begins.)

Traditional Japanese seasonal saying

And if you want to try something a little different: add a small slice of fresh ginger and a squeeze of lemon to cold mugicha. It is not traditional, but it is very good on a hot afternoon. My daughter started doing it and I have to admit she was right, even if I will not tell her that too loudly.

You can find more ideas for brewing and serving all kinds of herbal and grain brews by browsing through our glass teapots collection, where seeing the color of your brew is half the pleasure, or take a look at our full tea accessories collection for everything you might need to make mugicha brewing a proper ritual. And if cold brew in a pitcher is your style, our tea thermos collection keeps a batch cold all afternoon without losing a drop.

Frequently asked questions about mugicha

What is the origin of mugicha Japanese barley tea?+

Mugicha originated in Japan during the Heian period, roughly the 10th and 11th centuries, when roasted barley steeped in water was served at the imperial court. It gradually became a common household drink during the Edo period (1600-1868), when street vendors sold cold mugicha in summer. Today it is a year-round staple across Japan, Korea (where it is called boricha), and parts of China.

Does mugicha contain caffeine?+

No, mugicha contains zero caffeine. It is made entirely from roasted barley grains, not from tea leaves, so there is no caffeine whatsoever. This is one of the main reasons it is served to children and drunk in the evening across Japan. It is a genuinely caffeine-free drink, not just "low caffeine".

How do you make mugicha at home?+

For hot mugicha: bring water to a full boil, add roasted barley grains or a mugicha bag, simmer gently for 3 to 5 minutes, then strain and serve. For cold brew mugicha: add 2 to 3 mugicha bags or 3 tablespoons of loose roasted barley to 1 liter of cold water, refrigerate for 6 to 8 hours or overnight, strain, and serve over ice. The cold brew method produces the smoothest, least bitter result.

What does mugicha taste like?+

Mugicha tastes like toasted grain, with a mild bitterness and a gentle natural sweetness. Hot mugicha has warm, nutty, slightly caramelized notes. Cold mugicha is lighter and very clean on the palate. It is often compared to very light coffee without the caffeine, but it is really its own flavor category. There is no floral, grassy, or tannic character, nothing like green tea or black tea at all.

Is mugicha safe for children and pregnant women?+

Mugicha is traditionally served to children in Japan, including young babies once they have started solid foods. Because it contains no caffeine, it is generally considered very gentle. However, barley contains gluten, so anyone with celiac disease or gluten intolerance should avoid it. If you are pregnant or breastfeeding, as with anything new in your diet, have a quick conversation with your doctor first. Better safe than sorry, dear.

Where can I buy mugicha in the United States?+

Mugicha bags from Japanese brands like Hakubaku, Itoen, or Yamamoto are widely available in Asian grocery stores across the US and through online retailers. Some health food stores carry roasted barley as a bulk grain, which works just as well. If you want to explore loose grain brewing, a good glass teapot with an infuser makes the whole process much more enjoyable and lets you watch the lovely amber color develop as it steeps.