My intent is for Tea Deviant to be a positive place to inspire curiosity and have fun while exploring, but I can’t ignore the proverbial elephant in the room. Considering COVID-19 still has a daily impact on our lives and a study on tea and the virus in vitro has been done I feel it’s worth sharing and hope you do too. I’m not interested in fake news. This is not about a definitive cure. It's about studies that show the potential for compounds found in tea to be helpful against the virus and staying informed.
In November 2020 Nara University in Japan conducted a study on the effect of catechins in black and green teas on COVID-19 in vitro. Various teas were used with the most effective being black tea brewed from tea leaves. The study showed that when that black tea was introduced to coronaviruses it reduced their ability to infect by 99% after one minute and 99.9% after 10 minutes.
I first saw news of this study on the Japanese Greentea Co website. I did some further searches, but could not find an abstract though I did find other articles:
“Nara University study finds some common teas can neutralize COVID-19”
“Detoxify the New Corona with Tea…”
Human beings are more complex than a petri dish in a controlled environment for sure. Still, this study combined with others on tea and COVID-19 along with tea and other illnesses have me thinking there is something to this idea.
Other Tea and COVID-19 Studies
Before the Japan study, in July 2020 the National Institute of Health released info on studies that focused on 2 tea polyphenols: EGCG (epigallocatechin-3-gallate) derived from green tea and theaflavins from black tea. In short, they found both to be worth studying more as they are bioactive with the ability to support physical health in multiple ways . Here is an excerpt :
“Epigallocatechin gallate (EGCG) is one of the most abundant polyphenolic catechin found in Camellia sinensis (L.) Kuntze (tea plant), especially in green tea. EGCG has been tested for its antiviral activity against several viruses and found to be a potential treatment option over synthetic chemical drugs. It is recognized as a multi-functional bioactive molecule exhibiting antitumorigenic, anti-inflammatory, antibacterial, antioxidative, and antiproliferative properties in addition to its antiviral effects (Chacko et al., 2010). Theaflavins (TFs) are another class of polyphenols found in abundance in black tea. The TF derivatives found majorly in black tea are theaflavin (TF1), theaflavin-3-gallate (TF2A), theaflavin-3′-gallate (TF2B), and theaflavin-3,3′-digallate (TF3). All these TFs are being researched for their bioactive properties and are known for their broad-spectrum biological properties, like anti-tumor, anti-viral, anti-inflammatory, anti-oxidative, and anti-bacterial properties. Since EGCG and TFs are of natural sources and consumed regularly by a majority of the population, investigating the anti-viral properties of these polyphenols against COVID-19 could be an advancement in finding a treatment to this latest pandemic.”
EGCG would not appear to be effective taken orally though:
“However, EGCG is unstable and when consumed orally has low bioavailability. It tends to get oxidized quite easily before it reaches the target. Hence, many studies have suggested structural derivatives of EGCG to enhance its bioavailability.”
Tea Fights the Common Cold and the Flu
In previous studies tea catechins have been found effective against other viruses including influenza and the common cold. They showed antiviral capability and immune support. References to studies done since the 90s indicate that drinking green tea with consistency reduces the chance of flu.
I think tea just feels good too, and feeling good has also been linked to higher immunity.
Does the addition of milk affect the benefits of these powerful tea compounds? I found this scientific review from 2015 that covered various studies on the effect of milk (even non-dairy) on the beneficial properties of tea. The studies referenced resulted in wide ranging results thought to be caused by variables like type of tea, brewing method, type of milk and ratio of tea to milk. Even though some studies indicated a positive effect, overall the review stated that milk in tea was more likely to have a masking or negative effect.
This article from Food Chemistry details that though regular sweeteners like sugar had a negative effect on antioxidants in tea, stevia did not. I am not ready to give up my raw honey in my morning tea, but I am happy to have my tea au naturel during the day. How about you?
Whether it’s the taste of your tea, the ritual of it, or the relationships forged over it I hope it brings you joy. We need every ounce of that to come out on the other side of this viral war intact.
Here are some more sources if you want to dig deeper:
"Green Tea" - Mount Sinai
"Research Suggests Black Tea Inhibits COVID-19"
“The sequestered situation of this church seems always to have made it a favorite haunt of troubled spirits. It stands on a knoll, surrounded by locust, trees and lofty elms, from among which its decent, whitewashed walls shine modestly forth, like Christian purity beaming through the shades of retirement.” - "The Legend of Sleepy Hollow", Washington Irving
I finally got back to the Hollow this week during daylight to walk the historic grounds of the Sleepy Hollow Cemetery and the The Old Dutch Church, the oldest in the country (estimated at 1685).
A beautiful site with gently rolling hills, loads of foliage, and varying styles of stone work, this place is both a living work of art and of history. Washington Irving, the author of “The Legend of Sleepy Hollow” is buried here. I thought he’d have one of the house-like mausoleums in the cemetery considering how well he was known even in his own time. He was a lawyer, historian and diplomat on top of being a creative writer. Not bad for never going to college and being the 11th child of a sizable family. Not resting in a mausoleum, Irving’s modest tombstone is in his family plot at the cemetery.
“The immediate cause, however, of the prevalence of supernatural stories in these parts, was doubtless owing to the vicinity of Sleepy Hollow. There was a contagion in the very air that blew from that haunted region; it breathed forth an atmosphere of dreams and fancies infecting all the land.”
This is the 200th anniversary of the publication of the tale of the creepy headless ghost that would haunt the dirt roadways of the town at night. The story was published as part of a compilation called The Sketch Book of Geoffrey Crayon, Gent. in March 1820.
This is such a classic spooky tale that has not only survived as a Halloween staple it has inspired TV shows and multiple movies like Tim Burton’s version in 1999. The town is definitely developed, but historic sites like the Sleepy Hollow Cemetery and the Old Dutch Church seem frozen in time. I went on a beautifully overcast day that was not too hot nor too cold, just Goldilocks perfect, and quiet for Halloween season. I even found the Van Tassel plot by pure chance - the family whose daughter Katrina plays such a part in the story.
“It was, as I have said, a fine autumnal day; the sky was clear and serene, and nature wore that rich and golden livery which we always associate with the idea of abundance.”
Tea in America in the Early 19th Century
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This combo was trending a few years ago. This was a combination I thought could go either way. I mixed Sample A, the Ethiopian coffee, with a Ceylon sencha tea that had matcha in it. I thought the winey and citrusy notes of that coffee would pair well with the green tea, or be the best bet of the three.
It completely surprised me. I enjoyed the mix of the two. I brewed the coffee in a pour-over style and made the tea separately to honor the different water temperatures and brewing styles for each. After brewing, I mixed approximately three quarters green tea with one quarter coffee. The unique personalities of both the tea and the coffee came through the blend.
Then I made a green tea coffee latte:
- ¼ c milk
- ½ c green tea
- ¼ c coffee
- + sugar to taste
Delightful. If you like tea and coffee this gives you the best of both worlds.
Similar to the green tea coffee, this is a simple blend. I used a loose black puerh, steeping one teaspoon for 3 minutes. I brewed coffee Sample C, the dark mystery blend, in a pour over style.
I also liked this one mixed 50/50. This puerh has enough body and flavor to stand up to the bitterness of coffee without getting lost. I’d say the puerh even mellowed the coffee.
and Crooked River Coffee
Crooked River roasts their coffees in-house. You can’t ask for fresher unless you pick the beans yourself beforehand (but leave this to the professionals and you can just enjoy the pristine beans.)
Old Fashioned B2C Personality
CRC sells wholesale of course, but also has retail clients they sell to via a farmer’s market and directly. They vend at their local farmer’s market because that is the place they get to engage with the consumer. Howard tries to take new customers from a lackluster experience to a great coffee experience. “We try to get into people’s palates and encourage them to experiment a lot. I like to be a teacher. That’s part of the joy of being in the business for 28 years.” - Howard
They have a website, but the way to order retail through Crooked River Coffee is to call the office at (440) 442-8330 and have a chat. They have a low retail minimum of 2 pounds of coffee per order.
Howard's Tips for the Best Coffee
Starting with fresh beans and grinding before brewing yields the best cup. Make sure the fineness of the grind fits the brewing method. Store beans in an airtight container away from sunlight. Don’t put them in the freezer.
Check out this coffee grind graphic from The National Coffee Association (Note: coarse is good for cold brew too):
If you don’t have a quality water filtration system at home, buy spring water. It’s a quick fix. Though it costs more it ensures you don’t have chlorine, lots of bacteria, scale, or sediment (which will damage your coffee maker).
Keep temperatures between 195 and 205 degrees to avoid scalding
A Note on Blooming: When coffee is fresh it gives off quite a bit of carbon dioxide when brewing. The gas pushes the water away from the coffee as it releases. If you pour a small amount of hot water over the grounds and let them sit for 20-30 seconds before brewing more flavor is released in the brewing process. Give it a try!
If you love quality coffee like you love quality tea check out Crooked River Coffee for some of the freshest, most delightful coffee you can get. Then go wild! Use herbs and other tisanes like chocolatey cacao husk and orange peel to enhance your creations. If you take a dive into this blending fun let us know on Facebook and Twitter what you create.
Thanks to Howard for supplying the coffee for this adventure. There was no other sponsorship or affiliate links in this post.
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