Matcha has earned a reputation as one of the world’s most nutritious teas, thanks to its unique combination of naturally occurring compounds that support overall wellbeing. Among these, EGCG is one of the most talked-about… and for good reason.

If you’ve ever wondered what EGCG is, why it’s associated with green tea, or why matcha is considered one of the richest natural sources, you’re in the right place. In this guide, we’ll explain what EGCG is, how it works, why matcha contains so much of it, and why choosing high-quality matcha matters.

• What Is EGCG?

• What Does EGCG Do?

• Why Is Matcha So High in EGCG?

• Shade Growing Makes a Difference

• EGCG and Matcha: Why Quality Matters

• Matcha Contains More Than Just EGCG

• Does Heat Affect EGCG?

• Can You Get EGCG From Other Foods?

• Choosing Matcha Rich in Naturally Occurring Antioxidants

• Is EGCG the Reason People Choose Matcha?

• Conclusions on EGCG

What Is EGCG?

EGCG stands for epigallocatechin gallate, a naturally occurring plant compound that belongs to a group of antioxidants called catechins.

Catechins are a type of polyphenol found naturally in tea leaves, particularly green tea. They help protect the tea plant from environmental stress, and when consumed as part of a balanced diet, they contribute to the antioxidant content of the tea.

Among all the catechins found in green tea, EGCG is the most abundant and has been the subject of extensive scientific research.

What Does EGCG Do?

Antioxidants help protect cells from damage caused by free radicals. Free radicals are unstable molecules that are produced naturally in the body through normal metabolic processes. They’re also created by environmental factors such as pollution, UV exposure and smoking.

When free radicals build up faster than the body can manage them, they can contribute to oxidative stress. Oxidative stress is a natural process associated with ageing and has been widely studied for its role in overall health.

Including antioxidant-rich foods and drinks as part of a varied, balanced diet is one way many people choose to support their wellbeing.

Why Is Matcha So High in EGCG?

One of the reasons matcha stands out from other green teas is that you consume the entire tea leaf. With traditional green tea, the leaves are steeped in hot water before being discarded.

With matcha:

• The leaves are finely ground into powder.
• The whole leaf is whisked into your drink.
• You consume everything the leaf contains.

This means you’re naturally consuming higher amounts of the tea’s beneficial compounds, including EGCG, compared with drinking a standard brewed green tea. The way matcha is grown also contributes to its nutritional profile.

Shade Growing Makes a Difference

Before harvest, matcha tea plants are shaded from direct sunlight for around 20 to 30 days. This traditional cultivation method encourages the plants to produce higher levels of:

• Chlorophyll
• L-theanine
• Amino acids
• Catechins, including EGCG

The result is a tea with its characteristic vibrant green colour, smooth umami flavour and naturally rich antioxidant content. This careful growing process is one of the reasons premium Japanese matcha is so highly valued.

EGCG & Matcha: Why Quality Matters

Not all matcha contains the same levels of naturally occurring plant compounds. Several factors influence quality, including:

• Growing region
• Harvest timing
• Leaf selection
• Processing methods
• Freshness
• Storage

Premium Japanese matcha is typically made using the youngest leaves, which are carefully harvested, steamed and stone-ground to preserve flavour, colour and nutritional quality.

Poor-quality matcha may use older leaves, resulting in a duller colour, more bitterness and a less enjoyable drinking experience.

Matcha Contains More Than Just EGCG

Although EGCG often receives the spotlight, matcha contains a wide range of naturally occurring compounds that work together. These include:

Catechins

A family of antioxidant polyphenols naturally found in green tea.

L-Theanine

An amino acid that contributes to matcha’s smooth flavour and is often associated with feelings of calm focus when consumed alongside caffeine.

Chlorophyll

Responsible for matcha’s vibrant green colour and increased during the shading process before harvest.

Caffeine

Matcha naturally contains caffeine, but thanks to its combination with L-theanine, many people find it provides a smoother, more gradual energy boost compared with coffee.

Together, these compounds are part of what makes matcha such a distinctive drink.

Does Heat Affect EGCG?

Because EGCG is a naturally occurring plant compound, it can be affected by excessive heat. For the best flavour and to help preserve the delicate characteristics of matcha, many experts recommend preparing it using water that’s around 70–80°C, rather than boiling water.

Boiling water can create a more bitter flavour and may reduce some of the delicate aromatic compounds that make premium matcha enjoyable to drink.

Can You Get EGCG From Other Foods?

Yes! EGCG is found naturally in several foods and drinks, including:

• Green tea
• Matcha
• White tea
• Black tea (in smaller amounts)
• Some fruits

However, matcha is widely recognised as one of the richest dietary sources because the entire leaf is consumed rather than infused.

Choosing Matcha Rich in Naturally Occurring Antioxidants

If you’re looking for a high-quality matcha, there are several things to look for. Choose products that are:

• Made using Japanese-grown tea.
• Bright emerald green in colour.
• Finely stone-ground.
• Freshly packaged.
• Made with carefully sourced ingredients.

Organic matcha is also a popular choice for those looking to enjoy tea grown according to certified organic farming standards.

At Sweet Revolution, our matcha is sourced from Kagoshima, Japan, where carefully cultivated tea leaves are grown using traditional methods before being blended with Madagascan vanilla and coconut nectar to create our deliciously organic matcha latte with vanilla blend.

Is EGCG the Reason People Choose Matcha?

For many people, EGCG is certainly part of the appeal. However, matcha’s popularity goes beyond a single compound. People often enjoy matcha because it offers:

• A smooth, earthy flavour.
• A gentler caffeine experience.
• A calming daily ritual.
• Versatility in lattes, smoothies and baking.
• Naturally occurring antioxidants and plant compounds.

It’s this unique combination of taste, tradition and nutrition that has made matcha a favourite around the world.

Conclusions on EGCG

So, what is EGCG? EGCG, or epigallocatechin gallate, is the primary catechin found naturally in green tea and one of the reasons matcha is celebrated as a nutrient-rich drink. Because matcha is made from finely ground whole tea leaves, it naturally provides more of the plant’s beneficial compounds than traditional brewed green tea.

While EGCG is an important part of matcha’s nutritional profile, it’s the combination of antioxidants, L-theanine, chlorophyll and naturally occurring caffeine that makes this vibrant green tea so distinctive.

Choosing premium Japanese matcha for your matcha lattes ensures you’re enjoying a product that’s been carefully cultivated, traditionally processed and crafted to deliver exceptional flavour as well as quality.

View our entire range of wellness latte blends here.