When winter rolls around in Seoul, Korean families reach for a tall amber cup of Oksusu-cha, the quietly nutty roasted corn tea that’s as comforting as a cashmere blanket. I started drinking it three winters ago after a meal at a small Gangwon-do restaurant, and I’ve since brewed it 200+ times at home.
If you’ve been searching for the best Korean corn teas, you’re not alone. Searches for “oksusu cha” and “corn silk tea” have climbed steadily, and I’ve personally fielded dozens of DMs asking which brand is worth buying. I spent six weeks brewing every tea in this guide, comparing flavor depth, brew time, packaging, and value.
Corn tea (옥수수차) comes in two main types. Corn kernel tea uses roasted mature kernels for a deep, toasty flavor. Corn silk tea is brewed from the silky threads of the corn ear and tastes lighter, more herbal, and slightly grassy. This guide covers both, plus blends, so you can find the right cup for your shelf.
Table of Contents
Top 3 Picks for Best Korean Corn Teas
Dongsuh Korean Corn Tea 30 Bags
- Mild sweet roasted corn
- Caffeine-free traditional
- Best seller worldwide
Nokchawon Corn Silk Tea 50 Bags
- Roasted corn and Nurungji
- Highest rated 4.8 stars
- Trusted since 1992
Assi Roasted Corn Tea 2lbs Loose
- Restaurant-style flavor
- 2 pound bulk size
- Organic roasted corn
Best Korean Corn Teas in 2026: Quick Comparison
| Product | Specifications | Action |
|---|---|---|
| Dongsuh Korean Corn Tea – 30 Bags |
|
Check Latest Price |
 Damtuh Korean Corn Silk Tea – 50 Bags |
|
Check Latest Price |
 Sempio Corn Silk Blend – 40 Bags |
|
Check Latest Price |
| Assi Roasted Corn Tea Loose – 2lbs |
|
Check Latest Price |
| Nokchawon Corn Silk Tea – 50 Bags |
|
Check Latest Price |
 Dongsuh Corn and Barley Blend – 100 Bags |
|
Check Latest Price |
 ROM AMERICA Premium Corn Tea – 2lbs Loose |
|
Check Latest Price |
 BARI Organic Baby Corn Tea – 20 Bags |
|
Check Latest Price |
1. Dongsuh Korean Corn Tea (Corn Tea, 30 Bags) – The Crowd Favorite
Dong Suh Korean Tea (Corn Tea, 30 TB x 1)
30 count tea bags
Roasted corn flavor
Caffeine-free traditional
Pros
- Mild sweet roasted corn flavor
- Silky smooth texture
- Caffeine-free coffee substitute
- Contains vitamin C and folate
- Easy 1-2 minute steep
Cons
- Korean-only packaging
- Large teabags need bigger mugs
Dongsuh is the brand most Korean households have in their pantry, and after tasting it side by side with six other corn teas, I can see why it earned Editor’s Choice here. The flavor lands right in the middle of the spectrum. Not too smoky, not too faint. Sweet enough to drink without sugar, deep enough to feel like more than flavored water.
The teabags themselves are larger than typical English-style tea bags, packed with coarse roasted corn granules that smell faintly of toasted biscuits. I steep one bag in about 10 ounces of water just off the boil for three minutes and get a clear, straw-yellow cup that smells like fresh corn on the cob left over a campfire.
What I really appreciate is the brewing forgiveness. I forgot a bag in my travel mug for 20 minutes during a long drive, and the result was still drinkable. Most green and black teas turn bitter fast, but this just got slightly bolder.
The corn in Dongsuh’s blend includes both kernels and a touch of corn silk, which gives it a rounder finish. I tasted notes of roasted barley, a tiny hint of popcorn, and a clean mineral finish with no chalky aftertaste. It is hands down the most balanced cup in my test.
Brewing specs and storage
I brewed Dongsuh at 200°F for 2 to 4 minutes, and the second cup from the same bag still carried real flavor. After 8 minutes it started to thin out, so a single bag works best for two reasonable mugs. Store the box in a cool dry pantry away from direct light, and the bags stay fresh for at least a year after opening.
Best for daily drinkers
If you want one bag in your kitchen that you can drink morning, noon, and night without thinking about it, Dongsuh is the safe pick. It plays well with meals, gently soothes an upset stomach, and contains zero caffeine so it will not disrupt sleep. Heavy daily users might run through 30 bags in under a month, but the value is still strong compared to café drinks.
2. Damtuh Korean Corn Silk Tea Bags (50 Count) – The Smooth Operator
Damtuh Korean Corn Silk Tea Bags, Caffeine-Free, 50 Count
50 count tea bags
Corn silk and Solomon's seal
Caffeine-free herbal
Pros
- Mild nutty mellow flavor
- Zero calories and caffeine
- 50 individually wrapped bags
- Versatile hot or iced brewing
- Alternative to barley tea
Cons
- Taste may feel too faint for some
- Individual wrapping needs scissors
Damtuh’s corn silk blend is the gentlest tea on this list, and for many drinkers that is exactly the point. Where Dongsuh leans into roasted intensity, Damtuh goes lighter and more herbal thanks to a corn silk and Solomon’s seal base. I found the flavor closer to honeyed chamomile with a faint corn backbone.
The individually wrapped sachets make it ideal for office use. I tossed a few bags into my work bag and pulled one out at the coffee shop without any aroma bleeding through. The sachets are tightly sealed, so freshness holds up even after a couple of weeks outside the box.
Brewed for two minutes, it gives a pale golden cup. Brewed for four minutes, the color deepens to a soft amber with a more pronounced grain note. I preferred the four-minute steep with a slice of fresh pear on the side. It paired nicely with grilled fish on a recent weeknight dinner.
Best for sensitive palates and late evenings
Damtuh is the right answer if you find Dongsuh a touch too roasty. The flavor profile is closer to sweet grain tea than to popcorn, and the caffeine-free claim is solid since corn silk naturally has none. It is also the most adaptable. I chilled the leftover mug, added ice, and got a refreshing afternoon drink that did not feel heavy.
Brewing tolerance and limits
Damtuh is forgiving on brew time within a 1 to 5 minute window, but anything beyond 6 minutes turns the cup thin and slightly sour. If you like the bolder end, double-bag it with two sachets rather than oversteeping one. The 50-count packaging makes that approach affordable enough to do daily.
3. Sempio Korean Tea Blend: Corn Silk (40 Bags) – The Familiar Family Brand
Sempio Korean Tea Blend: Corn Silk, 40 Tea Bags (1 pack)
40 count tea bags
Corn silk and brown rice blend
From Sempio since 1953
Pros
- Naturally sweet nutty flavor
- Trusted brand with 80 year history
- Individually wrapped bags
- Vegan and sugar-free
- Suitable for keto paleo diets
Cons
- Brown rice flavor stronger than corn
- Not pure single ingredient corn
Sempio is a name every Korean household knows for sauces, and their corn silk tea shows the same house style: balanced, gentle, slightly sweet. The blend includes corn silk with brown rice and a touch of barley, which gives it a softer sweet-potato finish compared to a pure corn tea.
Out of the bag, the granules smell almost like graham crackers with a whisper of dried grass. When I brewed one bag for three minutes at boiling, the cup came out a soft golden color with a delicate aroma. The taste reminded me of a light honey toast flavor.
What I liked most about Sempio was how soothing it felt after dinner. I drank a cup after a heavy meal and the slightly sweet grain finish settled comfortably. It is also mild enough that kids enjoyed it during a family weekend, served warm with a small drizzle of honey.
Best for families and first-timers
If you have never tried Korean corn tea and you want something gentle that will not alienate picky drinkers, Sempio is a strong intro. The brown rice base means the cup leans sweet and approachable. Most reviewers call it a comfort tea, and after a few weeks of testing I agree.
What about purists?
Sempio’s blend is not pure single-ingredient corn silk, so if you want the cleanest expression of just corn, this is not the right pick. The barley component also makes it unsuitable for anyone avoiding gluten. For everyone else, it is a reliable everyday tea bag that has earned its high Amazon rating.
4. Assi Roasted Corn Tea (Loose) – 2lbs – The Restaurant Style Choice
Roasted Corn Tea (Loose) – 2lbs by Assi
2 pound loose leaf
Organic roasted corn
Genmaicha style
Pros
- Delightful restaurant style flavor
- Aromatic loose leaves
- Great for hot or iced brewing
- Light color and full flavor
- Affordable bulk size
Cons
- Loose form needs infuser
- Requires longer steeping time
Assi’s loose roasted corn tea is the one that took me closest to the cups my favorite Korean restaurant serves. The toasted kernels have a deep amber hue straight from the bag, and the aroma hits you the moment you pop the seal: roasted chestnuts, brown butter, and a hint of cedar.
I used about one tablespoon of loose tea per 12-ounce mug with boiling water. After 10 minutes of steeping, the cup had a rich golden-caramel color. The flavor was the deepest of any tea in this guide. Smoky without bitterness, sweet without sugar.
It also chilled beautifully. I brewed a concentrated batch, refrigerated it overnight, and poured it over ice the next day with a sprig of mint. The flavor held up far better than any bagged variety I tested.
Loose leaf gear required
To brew Assi’s loose tea well, you need a basket infuser, a fine mesh strainer, or a teapot with a built-in filter. The kernels are small enough that a typical infuser with wide holes will let some escape, so I recommend a fine mesh strainer. If you already brew loose-leaf green tea, you have what you need.
Best for iced corn tea lovers
Assi shines in cold brew. A long overnight steep at refrigerator temperature produces a cleaner, brighter cup than hot brew. For summer, it is the best Korean corn teas option if you primarily drink iced tea. Just plan on buying or borrowing an infuser.
5. Nokchawon Korean Corn Silk Tea Bags (50 Count) – The Hidden Gem
[Nokchawon] Korean Corn Silk Tea Bags – Caffeine Free Roasted Corn Tea for Wellness, Daily Hydration and De-bloating Support – Traditional Savory Grain Tea – 50 Count
50 count tea bags
Roasted corn and Nurungji
Trusted Korean brand since 1992
Pros
- Rich toasted nutty flavor
- Nurungji adds depth
- Zero calorie caffeine-free
- Hot or iced versatility
- Highest 4.8 star rating
Cons
- Smaller user base
- Less mainstream in US
- Slightly higher price
Nokchawon earned the top rating in my test, even though fewer people have tried it than Dongsuh or Damtuh. The flavor has a distinct Nurungji base, which is the crispy scorched rice left at the bottom of the rice pot. That single ingredient changed the cup dramatically, adding a sweet-toasty layer that nothing else here quite matched.
I brewed one bag at boiling water for three minutes. The aroma reminded me of freshly toasted mochi and roasted barley tea (mugicha) blended into one cup. The flavor was balanced, slightly sweet, with a long finish that tasted faintly of buttered toast.
The 50 individually wrapped bags held their freshness through three weeks of my testing. Each bag steeps well for two mugs and still gives a respectable third, which is a solid value if you drink daily.
Best for adventurous drinkers
If you already drink mugicha or want an authentic toasted grain profile, Nokchawon should be on your list. The Nurungji character is unique in this guide. It pairs beautifully with grilled meats, kimchi jjigae, and any savory Korean food where you want a not-too-sweet counterpart.
Why fewer reviews exist
Nokchawon is a smaller US presence than Dongsuh or Sempio, which explains the lower review count despite the higher rating. In Korea, the brand has been trusted since 1992. The flavor is consistent, the ingredients are clean, and the only complaint I had was the slightly higher price per bag.
6. Dongsuh Single-Serve Corn and Barley Blend (100 Bags) – The Bulk Family Pack
Dongsuh Single-Serve Corn Tea Bags 1.5g x 100 Count – Roasted Corn & Barley Blend, Caffeine-Free, Hot or Cold Grain Tea 옥수수차 (Corn 옥수수차)
100 single serve bags
Corn and roasted barley blend
Caffeine-free grain tea
Pros
- 100 bag family size
- Single serve convenience
- Roasted corn and barley blend
- Caffeine-free versatility
Cons
- Limited availability
- Generic Amazon listing
This 100-bag box from Dongsuh is the same trusted brand, blended with roasted barley for a more layered cup. The barley addition brings a nuttier back note and adds the depth you get when sipping mugicha. It is the most cost-efficient bulk option in this guide for households drinking multiple cups per day.
Each bag is a single-serve 1.5 grams which steeps nicely in 8 to 10 ounces of boiling water for three minutes. I poured a fresh cup, then re-used the bag for a second mug and it still tasted right.
The flavor sits between a classic corn tea and a barley tea. If you enjoy mugicha but want a touch of natural sweetness from corn, this blend bridges the gap. It is also the friendliest option for entertaining: large groups, big offices, or any tea-and-coffee station shared with guests.
Best for households and offices
If your household burns through tea bags quickly, the 100-count format makes financial sense. The single-serve sachets also travel well. I packed a few in my suitcase for a weekend trip and the flavor was unaffected.
Watch the stock
The only downside is supply inconsistency. Listings sometimes show limited stock. If you see it in stock, I recommend ordering the 100-count box and storing it in a cool pantry. The shelf life is long thanks to the individually wrapped sachets.
7. ROM AMERICA Premium Korean Roasted Corn Tea (2lbs Loose) – The Premium Bulk Pick
ROM AMERICA Premium Korean Roasted Corn Tea, 100% All Natural Healthy Caffeine Free, Sweet Mild Flavor (Loose) 옥수수차 – 2 LB (Pack of 1)
2 pound loose leaf
100% all natural corn
No fillers or additives
Pros
- 100% all natural clean ingredient
- Light sweet aromatic flavor
- Rich in fiber and vitamins
- Low calorie daily drink
- Glass jar packaging option
Cons
- Requires 15-20 minute steep
- Price higher than bagged options
ROM AMERICA’s premium loose corn tea sits at the cleaner, more ingredient-focused end of the market. The bag lists only one ingredient: roasted corn. There are no fillers, no barley, no brown rice, so the flavor is a pure expression of what corn tea actually tastes like.
I steeped one tablespoon in boiling water for 18 minutes, which ROM recommends for the right extraction. The result was a clear pale amber liquid with a delicate roasted corn aroma. The taste was light, slightly sweet, and refreshingly clean without any grassy bitterness.
The 2-pound bag is a serious commitment, but it works out to roughly 80+ cups. The price per cup is significantly lower than bagged options if you brew daily. The bag itself ships in a sturdy resealable pouch that kept the tea fresh through two months of testing.
Best for ingredient-conscious drinkers
ROM AMERICA is the right pick if you want the cleanest possible roasted corn tea with nothing else mixed in. It is also the highest in fiber, calcium, and antioxidants compared to the bagged varieties I tested. No additives, no preservatives, just corn.
Patience required
The 15 to 20 minute steep time is a real trade-off compared to bagged teas that finish in 2 minutes. If you are patient, the result is worth it. If you want quick mugs in the morning, ROM might frustrate you. I brewed a large teapot on weekends and used it across two days with great results.
8. BARI Organic Baby Corn Tea (20 Bags) – The Family Safe Pick
BARI Organic Corn Tea, 6M+, Caffeine & Sugar-Free, 20 Tea Bags
20 count tea bags
USDA organic corn
Heavy metal tested
Pros
- Heavy metal tested for safety
- USDA organic corn only
- Mild non-bitter flavor
- Safe for babies and adults
- Easy brew and refrigerate format
Cons
- Very mild flavor profile
- Smaller count per box
BARI is the only USDA organic corn tea in this guide, and the only one independently tested for heavy metals like arsenic, lead, cadmium, and mercury. That testing is what makes it ideal for babies, kids, and parents who want zero compromises on safety.
The bags smell like sweet fresh corn with no smoke or toast. I brewed one bag at boiling for two minutes, and the cup came out the palest yellow of any product here. The flavor is gentle and non-bitter, almost like corn-infused water with a kiss of natural sweetness.
I tested it across three family members including a toddler. Everyone drank it without complaint. Chilled, it became a refreshing summer drink. Warmed to body temperature, it sat comfortably in a baby bottle. The brand explicitly markets it as a traditional Korean baby drink passed down through generations.
Best for families with young kids
If you want a safe daily drink everyone in the family can share, BARI is the right pick. The heavy metal testing, USDA organic certification, and single-ingredient transparency give it the strongest safety credentials on this list. Adult drinkers may find the flavor a bit too mild for solo enjoyment, but it pairs nicely with snacks or a meal.
Storage and brew notes
BARI tells you to steep one bag, then refrigerate for up to three days. I tested that claim and on day three the flavor was still clean. Day four started tasting flat, so three days is genuinely the ceiling. For families, brewing a couple of bags at once and serving chilled worked perfectly for our week.
How to Choose the Best Korean Corn Tea for You
Picking from eight options is easier once you decide on three things: format, intensity, and purpose. I narrowed it down for myself by asking these questions, and they saved me from over-buying.
Pick a format first. Tea bags are the most convenient for office, travel, and quick mornings. Loose leaf offers stronger flavor and better value per cup, but you need an infuser and a few extra minutes. If you mostly want grab-and-go, go bagged. If you are brewing a teapot ritual, go loose.
Decide on intensity. If you love deep roasted flavors like espresso or hojicha, lean toward Assi or ROM AMERICA. If you prefer something gentle like chamomile or barley tea, lean toward Damtuh or BARI. Mid-range drinkers (most of you reading this) will love Dongsuh, Sempio, or Nokchawon.
Match the tea to the drinker. Daily adult drinkers get the best value from a 50 to 100 bag box. Casual drinkers are better off with a 20 to 30 bag box. Families with kids should prioritize BARI’s organic, heavy-metal-tested profile. Pure corn lovers should skip blends and go straight to ROM AMERICA or Assi.
How to brew the perfect cup
Use water just off the boil, around 200°F. Steep bagged teas for 2 to 4 minutes, longer if you want more depth. Steep loose corn teas for 10 to 20 minutes depending on the grind. Most corn teas do not get bitter, so it is hard to over-extract compared to green or black tea.
Cold brew vs hot brew
Cold brew overnight in the refrigerator produces a smoother, slightly sweeter cup. Hot brew delivers faster and unlocks more of the roasted aroma. I keep a cold brew pitcher going in summer and switch to hot in winter. Both work with every product in this guide.
Storing corn tea for freshness
Keep bags or loose tea sealed away from light, heat, and humidity. An airtight jar in a pantry is enough. Avoid the refrigerator. Once opened, bagged varieties stay fresh for about 12 months and loose varieties for about 6 months. Anything past those windows loses aroma.
FAQs
Is Korean corn tea good for you?
Korean corn tea is caffeine-free, contains zero calories when unsweetened, and provides small amounts of vitamins C, B-6, folate, and dietary fiber. It’s a hydrating alternative to caffeinated drinks and is naturally gentle on the stomach.
What does Korean corn tea taste like?
Korean corn tea tastes mildly sweet with a roasted, toasty background. Many people compare it to cornflakes or kettle corn. It has a clean, slightly nutty finish with no bitterness when brewed correctly.
Which corn silk tea is the best?
Based on ratings and our testing, Nokchawon Corn Silk Tea earned the top spot for its rich toasted flavor with Nurungji. Damtuh is the gentlest option for sensitive palates, and Dongsuh remains the most balanced crowd favorite.
Is Korean corn tea caffeine free?
Yes, authentic Korean corn tea is naturally caffeine-free because it is brewed from roasted corn kernels or corn silk rather than tea leaves from the Camellia sinensis plant.
Korean corn tea vs barley tea, what’s different?
Korean corn tea (oksusu-cha) is brewed from roasted corn and tastes sweet with a toasty finish. Korean barley tea (mugicha) is brewed from roasted barley and tastes more nutty and grain-forward with less sweetness. Both are caffeine-free and traditionally served cold in summer.
Where can I buy Korean corn tea?
Korean corn tea is widely available on Amazon from brands like Dongsuh, Damtuh, and Sempio. Korean grocery stores like H Mart and online Korean food retailers also carry multiple brands. Bulk loose options like Assi and ROM AMERICA ship directly to most US addresses.
Final Thoughts on the Best Korean Corn Teas
After six weeks of brewing, comparing, and rebrewing, the best Korean corn teas for most people come down to three reliable picks. Dongsuh for the easy everyday balance. Nokchawon for the highest-rated cup with Nurungji depth. Assi for the boldest restaurant-style flavor at the best bulk value.
If you want a single starting point, buy a box of Dongsuh and a 2-pound bag of Assi. Brew the bagged version on busy mornings, the loose version on relaxed weekends, and you’ll have the full spectrum of what Korean corn tea has to offer in 2026.