Pure, Soothing, Powerful Tea since 2004

Pure, Soothing, Powerful Tea since 2004


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Contact & FAQ Information

Our Products

Are your green tea powder products organic?

SEI MEE TEA LLC is certified organic as a company. Our products and ingredients are all certified organic, or grown organically and tested for no pesticide residue.

Where are your green teas grown?

SEI MEE TEA offers tea and brown rice from various regions in Japan. For more details, please click here.

How much caffeine is in Edible Green Sencha and Matcha Green Tea powder?


Our teas’ caffeine content per 8oz serving is:

Edible Green®, Regular: 10 mg
Edible Green®, Decaf: less than 3 mg
MATCHA (Modern Warrior): 35 mg
MATCHA (CHA KA, SAE, Uji Matcha): 60-70mg

For comparison, a regular cup of coffee has 95-240 mg of caffeine per serving.

Green Tea, Oolong Tea, and Black Tea are produced from the leaves of Camellia Sinensis, which contains caffeine naturally. Caffeine amount in Green Tea, including matcha, Oolong Tea, and Black Tea are determined by the growing environment and post-harvest treatment. The fermentation (oxidation) and finishing process make the unique flavor and nutrition in each type of tea. Oxidation decreases Catechins and EGCG in tea leaves. Therefore, the more oxidated Oolong Tea and Black Tea contain fewer Catechins and EGCG than Green Tea, which is not oxidated. 

What are the health benefits of green tea?

Green tea health benefits primarily come from the following three nutrients:

The most beneficial antioxidant: 25 to 100 times more potent than Vitamin C & E.

The most powerful among Catechin subclasses; responsible for green tea’s long list of health benefits.

A natural relaxant almost exclusively found in green tea leaves. Stimulates the production of alpha waves in the brain, associated with relaxation and mental alertness. L-Theanine is an amino acid found almost exclusively in green tea. Click here to learn more about L-Theanine.

Green Tea is one of the best natural sources of antioxidants we have.  The therapeutic benefits are tops, especially for cancer of any kind, and green tea is extremely cost-effective compared to alternatives.  Used by cultures all over the world, Green Tea is one of nature’s most beneficial and readily available substances.  And, consuming it in powder form, as Ground Green Tea, provides many times more antioxidants than Green Tea brewed from bags or loose leaves because most of the antioxidants are not water-soluble and do not come out into the brewed water–so we don’t get them unless we eat the leaves.”

Mark A. Gignac, N.D., FABNO Seattle Integrative Cancer Center, Tukwila, WA

Green tea’s health benefits may be useful for many health concerns including helping prevent cancer, strengthening the immune system, reducing cholesterol, promoting oral health, enhancing brain health & mood, weight loss, preventing bone loss, balancing hormones, regulating blood pressure, and helping prevent Type II Diabetes. Please consult your doctor before starting to drink green tea if you have any specific ailments and/or taking medications.


How much green tea should I drink? How much is too much?

EGCG, one of the subclasses of Catechin antioxidants, is the primary cause of the long list of green tea health benefits. Our green tea powder offers more EGCG than regular tea bag green tea, and one cup a day is a great addition to your healthy lifestyle.

You can drink more than one cup if you would like. In order to replenish with fresh green tea antioxidants throughout the day, drink one cup every a couple of hours up to 7 cups a day.

How much is too much?

Caffeine: Regular green tea contains caffeine naturally. According to Mayo Clinic, total Caffeine intake should be limited to 500mg per day. The American Academy of Pediatrics recommends that adolescents get no more than 100 mg of caffeine a day. Younger children shouldn’t drink caffeinated beverages on a regular basis.

How many cups of tea or coffee provide “500mg of Caffeine”?
  • 2 – 5 cups of coffee (95 – 240 mg/serving),
  • 8 – 35 cups of black tea (14 – 61 mg/serving),
  • Over 50 cups of Edible Green® regular (9 mg/serving), or
  • about 14 cups of Sei Mee Tea’s Matcha (35 mg/serving when 1g is used to make a serving).

EGCG: Being a very potent antioxidant, EGCG could be toxic if you consume extremely high doses as in EGCG extract. Linus Pauling Institute at Oregon State University reports scientific studies using 6000 mg of EGCG a day caused severe side effects. They said these side effects were likely related to Caffeine in the green tea extract.

If you drink real green tea in its natural form rather than extracts, you are unlikely to reach a toxic level of EGCG. That is why we recommend getting EGCG from real whole food, pure green tea powder. However, people’s tolerance varies, and one should approach higher levels of consumption cautiously.

Can kids drink green tea?

Yes, it is safe for kids to drink green tea!

Green tea can offer wonderful health benefits to kids. Since green tea naturally has caffeine, we advise monitoring the amount of caffeine your child is consuming. Green tea also contains L-theanine which is a natural relaxant that counteracts the undesirable effects of caffeine such as jitters. Unlike other caffeinated products that are popular with children, green tea may offer an energizing feeling without agitation, over excited-ness, and an eventual crash.

For more information, please click here.

Do you have a coffee alternative?

Yes, we do! Unforgettable™ is the best gluten-free coffee alternative made from completely caffeine-free, 100% pure roasted brown rice powder.  Roasted brown rice powder makes a healthy gluten-free coffee substitute drink with rich and comforting flavor, reminiscent of rich coffee or dark cocoa. Unforgettable™ also offers many health benefits such as detoxification, antioxidants, improving blood circulation, and more!

Unforgettable™ tastes really close to coffee but it’s good for you!  And it’s very satisfying.”  P.K., FL

Find out more about our coffee alternative product here.

Read our blog article about the benefits of Unforgetable.

Do you offer classes about tea? Where can I learn more about green tea?

Yes, we offer an online course! Find them here on the blog page..

We also post blog articles on our website for you to read any time you’d like. If you’d like the latest information regarding tea and special access to discount codes, sign up for our newsletter! Finally, we hold events such as tea tasting and tea ceremonies from time to time. Make sure to follow us on Facebook and/or Instagram so you don’t miss out!

Do you test your green teas for lead and radiation?

SEI MEE (Say Me) means “Pure Beauty” in Japanese. SEI MEE TEA is certified organic and all of our products and ingredients are either certified organic or grown organically and tested for no pesticide residue. However, being “organic” is not enough for us for our “Pure Beauty” teas. They need to be clean and delicious. 

Our green teas are tested and free from pesticides, radiation, and heavy metals. Be reassured when you choose SEI MEE TEA. Drink only the cleanest, healthiest tea for your health.

Learn more by clicking here.

What is your decaffeination process?

Our process is called the Natural Water Method, which uses water to remove most of the caffeine. EGCG antioxidants remain in green tea leaves when they are decaffeinated using the patented natural water method. With the patented water method, Edible Green® Decaffeinated sencha green tea powder contains 14.03% of Catechins.

Edible Green® Decaf has more Catechins than Matcha!

 Product EGCG amount per serving Ratio
*Matcha 10.95% / 54.75mg 1
Edible Green® Decaffeinated 14.03% / 70.15mg 1.28
*Sencha green tea powder  (Edible Green® regular) 15.55% / 77.75mg 1.42

According to the study done by Tsushida, when raw green tea leaves and steamed green tea leaves are soaked in hot water of 176 degrees Fahrenheit, 70% of caffeine after 1 minute and 80% after 3 minutes were eluted from both types of tea leaves. However, little amount of caffeine was eluted when the water temperature was 140 degrees Fahrenheit. The results show decaffeination efficiency largely depends on the water temperature.

The elution amount of EGCG is much less compared to Caffeine. When green tea leaves were steeped in hot water of 176 degrees Fahrenheit for 3 minutes and 80% of the caffeine was removed, only 4.1% of EGCG was eluted and 95.9% of EGCG remained in tea leaves.

The results show Caffeine can be removed selectively from both raw and steamed green tea leaves.
(“Journal of Agriculture and Chemistry Society” 59, 1985)

How beneficial is decaffeinated green tea powder?

It’s true with other decaf green teas because their decaffeination process removes water-soluble antioxidants, vitamins, and minerals along with the caffeine. So, “decaffeinated green tea leaves” don’t have much water-soluble nutrition left–that means, if you brew decaffeinated green tea leaves, you just get colored water with little antioxidants, vitamins, and minerals.

Edible Green® Decaf sencha green tea powder is the most efficient green tea when you are sensitive to caffeine. 95% of Catechins are left in Edible Green Decaf sencha green tea powder.  That means you still get 95% of Catechins from this amazing sencha green tea powder.  Since Sencha offers more Catechins than Matcha does, Edible Green Decaf green tea powder offers more Catchins than Matcha does.  No more compromise on green tea benefits to enjoy decaf green tea!

Edible Green® Decaf green tea powder is the only decaf green tea that delivers green tea benefits to you.

  • Naturally decaffeinated with the patented Water Process method.
  • Decaf green tea powder is almost as healthy as regular green tea powder with 95% of Catechins.
  • Edible Green® Decaf green tea powder is the only one “decaf green tea powder” available in the US market.  Same mild and smooth flavor as regular Edible Green® tea powder.
How do I make a cup of tea with Sencha green tea powder?

Just mix powder (1/4 to 1/2 tsp.) in 6 – 8 oz water, hot or cold.  For the best warm cup, use 175 degrees F water.  For cold tea, use chilled water.  No boiling, brewing, or chilling.

Sencha green tea powder or Matcha is also versatile in terms of cooking. Not to mention it makes a nutritious and delicious addition to smoothies, it can be added to soup, oatmeal, cereal, dip, etc.

When mixed with salt and/or other spices, it works as a great seasoning spice or a rub.

We offer green tea recipes. Please go to our “blog” page to view recipes.


How do I store my Matcha and green tea properly?

To keep your green tea as fresh as possible, avoid air, sunlight, moisture, and heat. All of our products come in resealable bags. Please gently squeeze the air out and reseal after each use. If you prefer, you may also store tea in a non-clear container with a tight-sealing lid.

If you like to buy in bulk, we recommend following these steps to ensure freshness.

The powder gets exposed to the air every time you open the container. We recommend you take a portion of powder, which you will use up within a few weeks, out of the bulk bag, and put it in a small dark air-tight container or a smaller dark food storage bag (NOT a clear plastic bag, because it doesn’t block sunlight).

When you close the bulk bag, gently squeeze the air out of the bag so the bag contains as little air as possible. You may secure it with scotch tape or rubber bands if you like. If you live in a hot area with average temperatures of about 70 degrees Fahrenheit, we recommend storing your bulk quantity in the fridge. Then, take it out an hour before use so that it returns to room temperature and discourages condensation (moisture).

Do you have a product catalog?

Yes, we do! Please click here to view our product catalog.

Which tea is best for me?

We offer many types of tea for all of your needs! If you’re seeking popular “matcha,” we offer MATCHA “Modern Warriors”, Cha Ka, SAE, and Uji Matcha. Matcha is high in caffeine and L-theanine for a calm sustainable energy. It offers more antioxidants than teabag green tea, but not as much as sencha powder.

Sencha Powder is for people who would like to take less caffeine than Matcha and would like to get a high level of antioxidants. We offer Edible Green® Sencha Powder Regular or Edible Green® Sencha Powder Decaf if you are very sensitive to caffeine.

For darker roasts that have a coffee-like flavor, our Unforgettable™ Brown Rice Drink or Hojicha will be great options for you.

If you are a tea connoisseur and are looking for our highest grade teas, check out our Sakamoto teas or Uji Gyokuro or Uji Matcha.

We also carry various brewed teas with many different flavors to try! Check out our Shop page to view all of our options or click here to find out more about the many kinds of Japanese teas.

Other tips: Iced Tea, Cow's Milk, and Lemon with Tea

Iced Tea
Iced Green Tea is our favorite refreshing drink for summer. We prefer homemade iced teas using organic/pure loose leaf to “ready-to-drink” teas because we can avoid loads of added sugar and chemicals. With our iced green teas, you get great flavor and quench thirst without any pesticide residue. Click here to learn how to easily make Iced Tea at home!

Cow’s Milk & Green Tea
“Milk proteins, containing caseins and whey proteins, were considered as ideal carriers for delivering catechins. Sodium caseinate adsorbed at the oil water interface, can load high ratios of EGCG. Casein micelles can be used as protective carriers for EGCG in foods. It was demonstrated that nanoencapsulation of EGCG in casein micelles did not diminish antiproliferative activity of the catechins on colon cancer cells, compared with free form EGCG. Accordingly, casein micelle is considered to be an ideal platform for catechin delivery while the binding of caseins with EGCG would not affect the bioaccessibility of EGCG.” 

The above quotation was taken from this scientific report:  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6225109/  (September 2018). 

Lemon or Sugar & Green Tea
Vitamin C enhances the antioxidant activity of green tea, so lemon is a good addition. If you are diabetic, do not add sugar to green tea.  Green tea antioxidants control blood sugar levels if sugar is not added to green tea. Controlling the amount of sugar intake could mean controlling your health. The bottom line is, yes, you can add lemon or sugar to your tea. However, pay attention to the quantity so you are not consuming too much sugar.


My Orders

Do you offer free shipping?

We offer Free Shipping on U.S. orders over $120! (Domestic only)

[Special Note during the Pandemic]
As you know, the health risk of COVID-19 impacted the frequency and number of international flights. This is affecting the delivery time of international mail significantly. According to the US postal service, the usual transit time of international First Class Mail to most of the countries in Europe and Asia is up to 2 months, and international priority mail is about 2 weeks. With the delay caused by this pandemic, the international mail is taking much longer than usual, which could be several months. Although we ship your order within 24 hours, the package would be held at the International Distribution Center for several weeks, possibly months, waiting for the flight to go to your country. Once the package arrives in your country, it needs to go through customs, which could take a week or so, and then will be on its way to you locally. We understand your frustration and we are too very frustrated as we would like you to enjoy your tea as soon as possible. We appreciate your understanding that this delay in delivery time was caused by the result of an effort to protect the workers involved in every process and ultimately to protect all of us. We appreciate your patience.



Can I find how much shipping costs before I place my order?

The shipping cost will be calculated based on the total weight of your purchase.

How to get an estimate of postage:
 1. Put items you would like to purchase in your shopping cart by clicking the “Add Items to Cart” button.
 2. Click the Shopping Cart icon located on the right top.
 3. Click the “View Cart” or “Checkout” button.
 4. Enter shipping information to see an estimate of our USPS & UPS shipping options.
 5. Click “Estimate Shipping”.
If the total weight is under 15.99 oz, you can choose First Class Mail (2-5 business days), Priority Mail (1-3 business days), or Express Mail (1-2 days).  US Postal Service does not offer “First Class Mail” option when entire shipment weighs over 15.99 oz.  
Please note USPS does not guarantee the delivery time when you choose Priority Mail and First Class Mail.  The delivery time shown is their estimate and they do not make a commitment on the delivery time, even if it says “2-day Priority”.  If you need to receive a package before a certain date, please choose USPS Express mail or UPS service.
When you order $120 or more, your shipping is FREE. We ship your orders within 24 business hours and provide the tracking information by email.  If you do not see the email in your “inbox,” please check your “junk-mail” box. Any damage or loss of the package occurred after we mail the package is outside of our control and is not our responsibility.  Please contact your local USPS office.

INTERNATIONAL (ship to outside the U.S.)

How to get an estimate of postage:

The shipping cost varies depending on the destination.  Please follow the below instruction to find your shipping cost.
1. Put items you would like to purchase in your shopping cart by clicking the “Add Items to Cart” button.
2. Click the Shopping Cart icon located on the right top corner.
3. Click the “View Cart” or “Checkout” button.
4. Enter shipping information to see an estimate of our USPS & UPS shipping options.
5. Click “Estimate Shipping”.

Duties and taxes related to importing products to your country may occur and you are responsible to pay these fees as an importer. “First Class International” is available only if the total weight is less than 4 lbs.  The length of delivery service varies when the package is sent by “First Class International.”  “Priority Mail International” takes 6 to 10 business days to deliver to most of the countries.  We ship your order promptly and provide the tracking information by email.  Once it is shipped, we are not responsible for any damaged and lost packages.

Where are you located? How long does it take to receive my order?

We are located in Enterprise, Oregon, which is a rural town in the northeastern corner of the state. We ship your orders within two business days and provide the tracking information by email.  If you do not see the email in your “inbox,” please check your “junk-mail” box. When you place your order, please choose the shipping option that meets your needs:

First Class, 2-7 business days (up to 15.99oz)
Priority Mail, 2-4 business days
Express Mail, 1-2 business days
UPS Ground, 1-7 business days

Please note USPS does not guarantee the delivery time when you choose Priority Mail and First Class Mail.  The delivery time shown is their estimate and they do not make a commitment on the delivery time, even if it says “2-day Priority”.  If you need to receive a package before a certain date, please choose USPS Express mail or UPS service.

Any damage or loss of the package that occurred after we mail the package is outside of our control and is not our responsibility.  Please contact your local USPS office.

Do you sell wholesale?

Yes, we sell wholesale! Email us for bulk & special requests: [email protected]

SEI MEE TEA® has great relationships with organic tea farms in Japan.  We are a great source for your ingredient needs for organic green tea, both powder and loose leaf. Our team members are all professional and experienced in green tea industry, and passionate about quality and safety of the products. We have a wide range of green tea loose leaf products to meet your needs.  If you are looking for quality green tea ingredients for your products, please email us. We will be back with possibilities with various price ranges for you to choose from.  We also welcome inquiries from restaurants and tea shops.

Already have a SEI MEE TEA Wholesale account with us?

LOGIN to your Wholesale Account and you will see the wholesale-only prices listed on the shop page. We offer almost every regular product as a wholesale variation.


I order my favorite regularly. Do you offer a subscription service with discount?
Become a member of our autoship program and enjoy the convenience of having Sei Mee Tea products shipped to you directly without the hassle of calling or ordering online. It’s simple and easy to join: Just give us a call or email and we will collect your shipping, credit card, and order information:  which item(s) and how often you would like to receive. You will soon be on the road to enjoying your tea, hassle-free!
  1. As a member of our autoship program there is no commitment and no minimum order.
  2. Easily change or stop your order. If you need to make any changes, just notify us by phone, email, or mail. 
  3. If for any reason you decide to cancel, you can email or call toll free 1-866-844-9448, and the autoship immediately stops.
  4. Save money and time–You will save 3% on products by using the Autoship program.  Autoship also makes a great gift for those who wish to give the gift of great health!

I love your products and services, and take every opportunity to treat friends to a really great green tea experience with Sei Mee. Most people are unaware that green tea doesn’t have to be pale and wan and boring!
-Cynthia, autoship member

Do you offer discounts?

Yes! Receive exclusive discount codes by signing up for our newsletter! Our newsletter provides green tea information including the latest findings on health benefits and new recipes.

We frequently have giveaways and advertise sales on Facebook and Instagram. Make sure to follow us so you never miss an amazing deal!

Loyalty points can be earned when you create an account and with every purchase. Then, these points can be used on future orders to receive discounts.

What is your cancellation and return policy?

Sei Mee Tea is committed to providing the highest quality products and service to our customers. If for any reason, you are unsatisfied with your products, please contact us to arrange for a full refund of that product (shipping costs excluded). All unused unsatisfactory products must be returned in sellable condition to receive a full refund. Sorry, no returns on products shipped outside USA. As always, please call or email us if you have any questions, need more information or to discuss your particular situation.

My Account

Do I have to create an account? What are the benefits?

We highly recommend creating an account. By having a SEI MEE TEA account, you can place orders more conveniently, view your recent orders, track orders, manage your shipping and billing addresses, and earn LOYALTY POINTS! Loyalty points are earned with each order and can be used on future orders to receive a discount.

Not sure if you want an account yet? That’s OK. You can place an order as a guest. However, none of your information will be saved so you will have to enter in all of your information next time.

I forgot my password.

No worries, you can reset your password by following the steps below!

  1. Go to the login page.
  2. Click “Lost your Password?”
  3. Enter your Username or Email Address that you used to create your account. Click “Get New Password.”
  4. Check your email for a reset link and instructions.

Still having troubles? Give us a call or email us and we can assist you in resetting your password.

How do loyalty points work?

Earn loyalty points with every order!*

  • Receive 100 points automatically upon creating an account. (You will see the points available when you check out.)
  • Receive 60 points for writing a product review.  

Points Accumulation: $1 = 1 Point  
Points Redemption: 20 Points = $1
Maximum Points Redemption on Checkout: $50.

*Points expire after 12 months. Use them always & often!

*Loyalty points cannot be earned with wholesale orders.

Customer Service

Monday – Friday: 10am – 4pm (PT) 
Saturday: 10am – 1pm (PT)
Sunday: Closed

Holidays: Closed

Call Us

Toll-Free: 866-844-9448 


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