5 Key Oolong tea Benefits and Side Effects You should Know


Oolong tea is well-known for its unique taste and enormous health benefits to our body. As green tea, oolong has high amount of polyphenols, alkaloids, saponins, polysaccharides and L-theanines. These polyphenols contribute to oolong’s antioxidant activity and free radical scavenging abilities. Besides, caffeine and polyphenols are bioactive component to anti-obesity properties of oolong tea. It is also used to prevent tooth decay, osteoporosis, relax your mind. In this post I would like to sketch 5 main health benefits, side effects and some tips for choosing and brewing oolong tea.

5 Oolong Tea Health Benefits

  1. Natural anti-oxidant properties

Free radicals are the natural byproduct of the process of oxidation. If free radicals are not neutralized it can cause damage to human proteins, lipid, DNA and lead to fatal diseases. To protect our self, our body uses an inherent antioxidant defense to scavenge and treat free radicals. However this system cannot prevent all the damage caused by free radical. We can strengthen our antioxidant defense by using food with rich sources of organic polyphenols. Polyphenols like vitamin C, vitamin E, carotenoids, flavonoids, catechins have antioxidant activity.   

Oolong tea has rich sources of polyphenols as epigallocatechin (EGC), epigallocatechin gallate (EGCG) and epicatechin -3-gallate (ECG). EGC and EGCG have been proved to play an important role in the scavenging ability of oolong tea. EGC and EGCG might against the diphenyl-2- picrylhydrazyl hydrate (DPPH) and superoxide radicals. Moreover other low molecular weight polyphenols in oolong tea also support DPPH scavenging activity

2. Natural weight loss  supplement

In the early of 1990’s scientist found that oolong tea can support and reduce body weight. Scientists have proved that polyphenols and caffeine in oolong tea can block lipid absorption and promoted fat oxidation.  As that oolong tea is used widely as natural supplement to treat obesity hardening and high cholesterol. In my other post I will spend more time to discuss about anti-obesity benefit of oolong tea. 

3. Natural Remedy to Clear Acne

Oolong tea is proved to enhance and give you a dramatic skin effect. This benefit might come from the anti-allergic properties of the oolong tea polyphenols. In 2001, Shiga University of Medical Science in Japan found that oolong tea can enhance the skin treatment in patients with recalcitrant atopic (AD). In a study, 118 patients with AD drank oolong tea for 6 months. The patients were asked to maintain their dermatological treatment during the study.  Patients were instructed to drink 10 gram of dried oolong tea steeped in 5 minutes with 1000 ml of boiling water. The tea amount is divided in 3 equal serving and was drunk daily after 3 regular meals. In first weeks, the beneficial effect was first notice after 1 or 2 weeks of treatment. A good respond to treatment was still observed in 64 patients of 6 months. Base on this research daily drinking oolong tea might help us to prevent acne. Oolong tea might clear acne and gives us brighter skin too.

4. Oolong Tea support Healthy Teeth

You can easy find some toothpaste or oral care products which contain green tea or tea inside. Experimental evidence suggests that EGCG, ECG and other catechins can be anti-plaque agents. Catechins in tea can prevent our teeth from the attachment of oral streptococcal pathogens. ECG and EGCG bind bacterial cellular proteins and decrease its hydrophobicity. And then prevent their further development. According to a study of the Dept. of Dentistry at Japan’s Osaka University regular consumption of oolong tea can help to reduce plaque deposit and tooth decay. 

5. Natural anxiety remedies

Fragrant compounds in plant, forest have been proved to be able enhance the GABAA response receptors in our brain. People using fragrant for treating anxiety disorders, sleep disturbances, muscle spasms and seizure disorders. Oolong tea contains the fragrant compounds such as geraniol, linalool and benzyl alcohol. In the research of Yamaguchi University, Japanese scientists used oolong fragrant to regulate the GABAA levels in the brain. Oolong tea is proved to sharpen thinking skills by improve mental alertness by increasing GABAAlevel in brain. Besides, oolong tea fragrant might be able to handle the stress and reduce the headache. As that having a fresh cup of oolong tea can help us relax and keep our mind balance.

Tips for brewing oolong tea

The leaves of oolong tea should not be damaged and look reasonably whole once they are infused and unfold. After making the tea, the leaves should be tender, pliable and look fresh. The leaves should not be chewy, old and thick. If it looks like that it might be picked lately.

You can brew oolong tea for three to five times with the same leaves. The best tea should be able to keep its rich flavor through multiple infusions. Besides, good oolong tea will not become bitter for a long aftertaste. With lots of people the third or fourth steeping oolong tea usually the best. With me my favorite is the second time brewing as the second brewing taste is not so strong or not so soft.

How to brew oolong tea?

In a traditional way, people will brew 3 grams of tea (2 teaspoons) per cup with 200 ml of water. The water temperature about 205°F (93 to 96°C) water (not boiling) and steeped 3–10 minutes. 

You can maximize the scavenging ability of oolong tea by changing brewing time and water temperature. A study of Guangzhou and Clemson University found that the best time to brew oolong tea is 3 minutes with boiling water (100°C). Oolong tea will have the highest activities of scavenging DPPH and superoxide radicals. 

Side effects of Oolong tea

The side effects of oolong tea mainly come from caffeine. Caffeine account only 5-7% of oolong tea. If you drink more than five cups per day, you might have some side effects because of the caffeine. These side effects range from mild to serious. Side effects include headache, nervousness, sleep problems, vomiting, diarrhea, irritability, irregular heartbeat, dizziness, convulsions, and confusion. And in these conditions you should take more notices or ask your health provider advice before using oolong tea:
  • Oolong tea in small amounts is probably not harmful to pregnant or breast-feeding. But, do not drink more than 2 cups a day of oolong tea. Too much caffeine during pregnancy might harm to the baby. And over-dose caffeine might cause irritability and increase bowel movements in nursing infants.
  • The scientists found that caffeine might slow blood clotting and make bleeding disorders worse.
  • Caffeine in oolong tea can cause irregular heartbeat in some people.
  • If you have diabetes, talk with your doctor before using oolong tea.
  • Drinking oolong tea can flush out calcium in the urine. Consider if you need calcium supplements to make up for the calcium that is flushed out. If you have osteoporosis, don’t drink more than 3 cups of oolong tea per day.
  • Caffeine in oolong tea might increase blood pressure in people with high blood pressure. But, this side effect does not happen in people who often drink oolong tea or other caffeinated products.

Oolong tea has a unique taste and amazing effect on the body and also on mind. This tea supplies us the rich source of polyphenols is required for anti-oxidant process and the total good health. Besides oolong tea can enhance your skin, oral health and balance your mind. But you should notice the side effect you might have when having more than 5 cups of oolong tea in one day. Ask for doctor advice when you have concerns or special health condition. I do hope you can find the information you concern about oolong tea in my post. Let me knows what do you think and what I can add to make this post better.

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References:


5 main types of Teapot: Advantages and disadvantages


There are many types of teapots in the market now. Once you type the ‘‘teapot’’ keyword in Google, you can receive a million results. I know it is difficult for finding and choosing the right types of teapots. So that in this post I list 5 main types of teapots, their advantages, disadvantages and some tips for choosing the right one. Five main teapots are Ceramic teapots, Porcelain teapots, Clay/ Yixing teapots, Glass teapots and Enameled Cast-iron teapots.

Ceramic teapots

The Ceramic teapot is suitable for all families of tea. This teapot is particularly recommended for fragile and delicate tea such as green tea or white tea.

Advantages:

The ceramic material offers higher heat retention than others material such as Glass, Porcelain. The enamel coating of ceramic teapot makes these teapots do not absorb tea flavor. 

Disadvantages: None

Tips:

Check the pouring spout and handle to make sure they are in straight edge. Make sure you can lift and place the teapot at the right angle to pour tea without straining your wrist.

Porcelain teapots

The Porcelain teapot is a good ideal for fragile and delicate tea like green tea or white tea. As I was saying in the post ‘‘4  notices when buying teapots’’, I got a little Porcelain teapot. And I am satisfied with my porcelain teapot for brewing green tea.
Advantages:
Similar to the Ceramic teapot, the Porcelain teapot does not absorb tea flavor.
Disadvantages:
The Porcelain teapot is not suitable with the tea required longer brewing time such as herbal tea or black tea.
Tips:

You can use Porcelain teapot for brewing tea required a long time like black tea or herbal tea by using tea warmer or felted tea cozy. The tea warmer can enhance the heat retention of the porcelain teapot.

Clay teapots/ Yixing teapots


The Clay teapot/ Yixing teapot is the best teapot for brewing Oolong and Pu-er teas.
Advantages:
The clay or Yixing teapots are memory teapots. Sides of the teapot absorb the tannins in the tea when brewing and create deposits that build up over the successive of infusions.  The more the teapot is using the better it will reveal the wealth of aromas in the tea infused in it.
Disadvantages:
Use one Clay teapot for only one main type of tea Oolong or Pu-er teas. Do not mix different types of tea in the Clay/ Yixing teapot because this type of teapot remembers the tea flavor.  Moreover, this teapot does not go well with white tea and green tea.
Tips:
Be careful with the cheap Clay teapot and Yixing teapot because the cheap one may deteriorate quickly.
There are three rules for choosing the Clay and Yixing teapots
  • The tip of the spout and the top of the handle will be level with the rim of the teapot.
  • The lit should be fit the opening in the teapots as close as possible, so it does not move.
  • The handle and the spout should be perfect aligned.

 

Glass teapots

The glass teapot is ideal for blooming flower tea and stylish leaves unfurling.
Advantages:
The glass teapot offers the neutrality and veracity as ceramic teapots. Their smooth surface is suitable for all types of tea and does not affect the taste. Most designed glass teapots are equipped with infusion strainers. You can remove the strainer when preparing tea bag.
Disadvantages:
The glass teapot is not ideal for heat retention and the tea required more time brewing such as herbal tea or black tea.
Tips:
You can use teapot warmer or felted tea cozy to increase the heat intention or maintain the heat. The good felted tea cozy can keep the glass teapot hot for half an hour or more.

Enameled cast-iron teapots

The enameled cast-iron teapot is suitable with all types of tea but not recommend for delicate teas such as Green tea, Oolong and Pu-er tea.

Advantages:

They can keep the tea hot for an hour. The enameled cast-iron teapot is great for brewing tea requiring high heat such as black tea or herbal tea. The enameled cast-iron material can distribute the heat evenly inside the pot. Besides, the enameled coating makes it easier to clean and prevent the tea from contacting with the cast iron.

Disadvantages:

The enameled cast-iron teapot is not recommended for delicate teas such as white tea, green tea Oolong tea and Pu-er tea.
The enameled cast-iron teapots can be heavy and difficult to handle. It can be easy to over steep your tea if you don’t use infuser. 

Tips:

Remember you get what you pay for when buying the enameled cast-iron teapot. Make sure the enameled cast-iron is good if you don’t want the metallic smell affect your tea.
It is time for ending my discussion about some advantages, disadvantages and tips for choosing 5 main teapots. If you like my post, take note advantages and disadvantages of teapots that you like. And now, it is your turn to find your favorite teapot based on your favorite teas and your own demanding usage. If you have any other ideas about this post let me here your opinion.

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4 Notices when Buying Teapot



Teapot plays very important role in brewing successful a cup of tea. The suitable teapot can enhance the tea flavor and bring out the tea benefit. With me my teapot is not only brewing teapot but also a cute reminder of my family. In the picture is my favorite porcelain teapot. My mom gave it to me as a gift when I left Vietnam three years ago. Whenever I see the teapot I remember my mom, my family and Vietnam. I like this teapot so much because it is not so small and I can brew tea for one or two people with it. Besides, the porcelain teapot suits perfectly with my favorite green tea.  How about you? Do you have your favorite teapot and what is your teapot’s story? Did you have any confuse or difficulty when choosing the right teapot?

I know in the tea shop or internet there are many type of teapot and it is very confusing to find and choose the teapot. For that reason, in this post I want to share my experience and some tips for choosing a good teapot. There are four main points you should pay attention when choosing a new teapot: Material, Size, Shape and the Quality of teapot.

Material: You should highly pay attention when choosing the teapot’s material. Each of teapot’s material will get on well with one or some special types of tea. You can choose the teapot’s material based on your favorite teas. Here are some suggestions:

  • The Ceramic, porcelain and enameled cast-iron teapots are suitable for many types of tea such as green tea, black tea, herbal tea and so on…
  • The Clay teapot is ideal for Pu-er and Oolong tea because it remembers the tea fragrances and enhances the tea flavor.
  • The Glass teapot is suitable with the artisan (booming) teas or stylish leaves tea.

You can find more information about the teapot’s material in 5 main types of teapots. This post gives you more about the material and tips of what you should notice when choosing teapots. 

Size: When buying the teapot, do not buy too large teapot. If you only use the teapot for decoration or company’s meeting you can choose the big one. Some delicate teas such as Oolong, Pu-er tea need to be infused in a small quantity of water to release their precious fragrances. 

Shape: Now, there are so many types of teapot in the market with different size and shapes. You might want to buy some very creative or special shape of teapot. But remember the main aim of teapot is brewing tea. Choose the teapot that suits to your hand. Always lift the teapot to ensure it pours well and you like the grip. But how to choose the right teapot when you buy it online? You can’t touch it and don’t know how the grip is working. Meanwhile, some special teapots are handmade and focus more in the art or decoration targets. I think the safest way is buying the teapot with traditional shape with grip that you have used it before. If you love creative teapot or special designed teapot make sure you can return the teapot if you don’t like it. If you have another idea about buying teapot online, share it with me.

Quality: The good teapot will be costly because some high quality teapots are handmade and designed for special types of tea. Especially with the clay teapot, it is worthy to buy the expensive one because the more you use the teapot, the better tea it brewed. Beware of cheap tea pots when buying metal and enameled cast-iron teapot. The low quality teapot may deteriorate quickly and your tea taste might have slightly metallic flavor.


In general, whenever you want to buy a new teapot, remember to choose the material suit with your favorite tea, Shape and Size match with your aim of using teapot. Find the good quality teapot and beware of the cheap teapot. I hope you can use some tips in this post to find the teapot which suits with your hobby and your favorite tea. If you have other ideas about choosing the teapot, share with me. I would like to know your teapot story and your experience of choosing your favorite teapot.