Which Tea Has The Most Caffeine? Know Your Safe Dose

Which tea has the most caffeine? If you are a tea lover then you should know how much caffeine is in your tea.

Yes, some teas contain caffeine that can also be found in coffee, guarana products, chocolate, cocoa, energy drinks and other beverages. Some products have it too, for relieving pain and lowering fever which are available without a prescription.

It is important to know what kind of tea has the most caffeine because you can overdose with it and the consequences can occur. This time you will know everything about caffeine and which tea has the most caffeine. I will mention all teas that have this substance so you will be more careful.

Real Teas contain Caffeine or Tein

Each real tea contains a bunch of antioxidants and tein which works similarly stimulating as caffeine. It is the same if we say tein in tea or caffeine in tea. It is the same compound. Nevertheless, real teas contain less caffeine than coffee.

Do you know that with a cup of real tea caffeine will be releasing slower than with a cup of coffee?  This is the main difference of caffeine in real teas and coffee. Tannins (tannin) are responsible for slower releasement because they have inhibitory effect on digestion of caffeine. This is why caffeine is released in the blood stream gradually. It is also why caffeine effect lasts longer than with coffee.

which tea has the most caffeineAll real teas are made from the plant Camellia Sinensis that has 5-6% of caffeine. And what does caffeine do?

Caffeine stimulates the functioning of the metabolism and consequently helps in weight loss and maintenance of ideal body weight. Real teas have different amount of caffeine.

It lowers bad cholesterol and too high blood pressure. It also protects our cardiovascular health in general. Research has shown that people, who drink two or more cups of real tea a day, have 50 % less chance for heart attack. In addition, it strengthens the immune system which has the most vital function in winter days.

Which Tea has The Most Caffeine?

Black tea has the most caffeine among real teas. It originates from China where it was invented as a way to preserve the freshness of the tea because it was exported to other countries. First they wither freshly picked tea leaves so they lose third of water.

looseleaf black teaThen they bended the soft flexible tea leaves which causes cracking of the cells and the release of enzymes. Thus fermentation process is enabled. It is crucial for the quality of black tea.

Intensive fermentation processes begins at 40° C and high relative humidity, and lasts for several hours. In such a process leaves of black tea remain darker than other types of tea.

There is less caffeine in black tea as in coffee. A cup of black tea has from 23-110 mg of caffeine. It is a real tea with the most caffeine. A cup of black tea will help you stimulate blood flow to the brain but it won’t affect your heart like coffee. Increased blood flow to the brain will improve your mental activity.

What is Caffeine?

According to the chemical structure, caffeine is an alkaloid. In its pure form it is a crystalline substance, without smell and with slightly bitter taste. Caffeine is almost not insoluble in cold water but its solubility in water increases with temperature increase.

We can locate it in the seeds, leaves and fruits of more than 60 different plants in various quantities. It is a natural pesticide that repels insects. Famous plants that contain caffeine are coffee tree, tea tree, cocoa tree, guarana and cola.

Benefits of Caffeine in Black Tea

If you drink black tea you will consume caffeine. It will stimulate the activity of the central nervous system, improve mood, increase energy levels and improve muscle stimulation. It will clear the mind and increase alertness to some extent, increase the mental abilities and ability to concentrate.

Those effects vary from one individual to another and depend largely on body weight, frequency of use, metabolic rate, physical activity and sensitivity to caffeine.

How caffeine works?

  • blood streamIt activates the central and sympathetic nervous system
  • improving muscle stimuli
  • increases the secretion of catecholamines (a stress hormone which increases the release of free fatty acids in the blood)
  • It encourages and accelerates the metabolism of fats, which help preserve glycogen
  • It raises the level of potassium in the blood

These days we see caffeine products that are advertised as an effective help in reducing body weight. Studies have not confirmed the serious link between increased intake of caffeine and noticeable reduction in body weight, although there are some theories that link caffeine and weight loss.

  • Caffeine can depress the appetite for a short time but it isn’t confirmed that long-term use led to a significant decrease in body weight
  • It can also accelerate thermogenesis but this is probably not enough for the visual effects of weight loss
  • It is a diuretic so your body will lose more water. This means a decrease in body weight, not fat loss. Watch out with consuming various drinks with high caffeine content. This can be double-edged sword since these drinks are often rich in calories and fat which may even gain weight

How Much Caffeine per Day is Enough?

side effects of caffeineA healthy adult can consume between 100 and 250 mg of caffeine per day, this is a safe dose.

Doses greater than 300 mg of caffeine depended on the weight of the individual and his habit to caffeine, can already cause some side effects.

These are restlessness, nervousness, excitement, insomnia, flushing of the face, increased urination, gastrointestinal disturbance, muscle spasms, abnormal heart rhythm, disjointed thoughts and speech.

1000 mg caffeine can already cause serious poisoning, which can even end with death. It is especially dangerous for people with heart rhythm disturbances.

Caffeine Side-effects

While some stimulants such as nicotine are classified as an addictive substance, caffeine is considered safe. Experts argue that caffeine can’t addict us. Nevertheless, it can cause headaches, dizziness, difficulty concentrating, feel nausea and muscle pain if we drink caffeine beverages regularly.

There was many studies taken about drinking caffeine in pregnancy but they show quite conflicting results. Nevertheless, all experts agree that pregnant women should reduce the intake of caffeine in the body. Some studies have shown that large amounts of caffeine increase the chances of miscarriage and interfere with fetus development.

It takes five to six hours for the body to eliminate only half the caffeine you consume. An afternoon cup of black or other real tea can disturb your sleep. This effect may last even longer with people who are more sensitive to caffeine.

You Love Drinking Real Teas?

Are you drinking a black tea in the morning to wake you up? This is a great way for activating your brains. Black tea has the most caffeine amount among real teas. Green and white tea follows. Caffeine has several health benefits but you should watch out that you don’t consume it too much.

This is especially important if you are caffeine sensitive. You can still enjoy your tea but listen to your body. If you feel nervous and you have increased heart beat you should decrease your caffeine intake. Caffeine is also not recommended with alcohol so don’t practice it.

It is not a secret which tea has the most caffeine, it is black tea. I recommend that you enjoy 3-4 cups of caffeine tea (black tea) per day and not more. All exaggerations harm us, right?

Vania Pinteric
About Vania Pinteric 143 Articles
My name is Vania Pinteric and I am a tea lover who has a passion for drinking and exploring different kinds of teas. Today my partner and I are big tea lovers who doesn’t miss a day without at least one cup of tea. My tea passion grew day by day, so I decided to inspire people to get to know the aromatic world of teas.