Matcha tea has antioxidants such as catechins – EGCG (epigallocatechin gallate), which detoxifies the body. A research study assessing the antioxidant power of this tea has revealed that as compared to other green teas matcha has the highest amount of EGCG. These antioxidants seek out for the oxygen free radicals and neutralize their harmful effects. Thus, protecting the body from the occurrence of disorders or inflammations associated with the oxidative stress.
Research also shows that green tea lowers total cholesterol, improving the overall cholesterol profile. One population-based clinical study found that men who drink green tea are more likely to have lower total cholesterol than those who do not drink green tea. Other clinical studies that look at populations of people indicate that the antioxidant properties of green tea may help prevent atherosclerosis, particularly coronary artery disease. The benefits also seem to extend to preventing stroke, reducing high blood pressure, and inhibiting the formation of blood clots. Much of the effect may also be due to the ability of green tea to help lower blood sugar and insulin levels.
Koicha, or thick tea, requires significantly more matcha (usually about doubling the powder and halving the water): approximately 3.75 grams (amounting to 3 heaping chashaku scoops, or about one teaspoon) of matcha and approximately 40 ml (1.3 oz) of hot water per serving, or as many as six teaspoons to 3/4 cup of water. Because the resulting mixture is significantly thicker (with a similar consistency to liquid honey), blending it requires a slower, stirring motion that does not produce foam. Koicha is normally made with more expensive matcha from older tea trees (exceeding thirty years) and, thus, produces a milder and sweeter tea than usucha; it is served almost exclusively as part of Japanese tea ceremonies.
This tea is a rich source of antispasmodic agents, which can ease severe stomach cramps and abdominal pains. This is mainly due to the activation of K+ (potassium) ions in the body without antagonizing the activities of calcium, according to a report published in the Basic & Clinical Pharmacology & Toxicology. This can reduce the presence of hyperactivity in the gastrointestinal tract, thus preventing diarrhea and other intestinal issues.
Instead of being rolled, shaped and dried like traditional green tea leaves, the leaves destined to become Matcha are laid flat to dry. Grinding the leaves into Matcha is a slow process. If the mill stones overheat, the delicate green tea leaves might become damaged, which alters the flavor and taste. For reference, it takes about one hour to grind 30g of Matcha.
Generally, the leaves undergo an oxidation (often termed "fermentation" in common tea processing terminology). This process produces the distinctive reddish-brown colour of rooibos and enhances the flavour. Unoxidised "green" rooibos is also produced, but the more demanding production process for green rooibos (similar to the method by which green tea is produced) makes it more expensive than traditional rooibos. It carries a malty and slightly grassy flavour somewhat different from its red counterpart.
The South African Department of Trade and Industry issued final rules on 6 September 2013 that protects and restricts the use of the names "rooibos", "red bush", "rooibostee", "rooibos tea", "rooitee" and "rooibosch" in that country, so that the name cannot be used for things not derived from the Aspalathus linearis plant. It also provides guidance and restrictions for how products which include Rooibos, and in what measures, should use the name "rooibos" in their branding.
Observational studies found a minor correlation between daily consumption of green tea and a 5% lower risk of death from cardiovascular disease. In a 2015 meta-analysis of such observational studies, an increase in one cup of green tea per day was correlated with slightly lower risk of death from cardiovascular causes. Green tea consumption may be correlated with a reduced risk of stroke. Meta-analyses of randomized controlled trials found that green tea consumption for 3–6 months may produce small reductions (about 2–3 mm Hg each) in systolic and diastolic blood pressures. A separate systematic review and meta-analysis of randomized controlled trials found that consumption of 5-6 cups of green tea per day was associated with a small reduction in systolic blood pressure (2 mmHg), but did not lead to a significant difference in diastolic blood pressure.
The natural ingredients included in this detox tea have been used for ages to promote various aspects of human health. That being said, your body does quite well at detoxing itself through the healthy functioning of your liver and kidneys. There are few risks associated with drinking a tea like this one, so if you enjoy the flavor anyway, you could reap a few additional benefits.
A study suggests that theanine found in matcha tea acts as a neurotransmitter. It exerts a calming effect on the brain without causing any drowsiness. This soothing effect helped the Buddhist monks in maintaining deep concentration during their meditation sessions and was the main reason behind its popularity. Another study has revealed the anti-stress effects of theanine present in this tea, which assists in reducing the physiological and psychological stress responses by inhibiting the neuron excitation. Matcha tea is also believed to boost memory and concentration.
In 2013, global production of green tea was approximately 1.7 million tonnes, with a forecast to double in volume by 2023. As of 2015, China provided 80% of the world's green tea market, leading to its green tea exports rising by 9% annually, while exporting 325,000 tonnes in 2015. In 2015, the US was the largest importer of Chinese green tea (6,800 tonnes), an increase of 10% over 2014, and Britain imported 1,900 tonnes, 15% more than in 2014. In 2015, Kenya was the largest exporter of black tea in the world (443,000 tonnes).
Matcha is green tea that has been specially grown and processed. Twenty days before harvest, the leaves are shaded from direct sunlight, which amps up the chlorophyll levels (and accounts for that Kermit green color) and increases the production of the amino acid L-Theanine, which is thought to promote relaxation even as the tea gives you a caffeine jolt. The leaves are hand-picked and laid out to dry. Once they are rid of their veins and stems, they’re stone-ground into what is finally matcha.
Day 3: As I started to make my 5th cup in 3 days, my best friend said, “Ab, I really don’t think you should be drinking so much of this stuff. Why don’t you just stick to the recommended amount?” I responded with “It’s just TEA — what’s the worst that could happen?” On day 3, I learned. I had decided to give up coffee during my 28 days, both as a way to save my sanity and excretory system and as a way to wean myself out of my coffee habit. That was really stupid. By day 3, I was experiencing a horrifying caffeine headache and a rough case of the spins. I was also literally exhausted and finally feeling the ~desired effects~ of the detox (frequent trips to the bathroom, to put it lightly), so I was dealing with an excess of that on top of my other horrible side effects. Do I blame the tea? Not even a little. I blame myself for overindulging in too much of a good thing. From there on out, I decided to follow the rules.
• One Chinese study found that men who drank more than three cups of tea a day reduced their risk of prostate cancer by 70 percent. In another study funded by the National Institute of Health, 79 men with prostate cancer were told to either drink 6 cups of green tea a day or 6 cups of water. After 3 to 8 weeks, the levels of prostate-specific antigen, a protein that may indicate cancer, were lower in the men who drank green tea than those who drank water. An indicator of inflammation, nuclear factor-kappaB, linked to cancer growth, was also lower in the men who drank the green tea.