What Is Matcha Made Of? (It’s Not Just Green Tea)
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Matcha has gone from a traditional Japanese tea to a familiar sight on café menus, bakery shelves, and social media. The BBC has described the recent matcha boom as demand surges worldwide, with matcha production in Japan nearly tripling between 2010 and 2023.
But behind the bright green lattes is a surprisingly simple ingredient.
So, what is matcha made of? The answer starts with one type of tea leaf and a very different way of growing and processing it.
1. What Is Matcha Made Of Exactly?
At its simplest, matcha is made from shade-grown green tea leaves from the Camellia sinensis plant. More specifically, traditional matcha is produced from leaves that are cultivated for tencha, a type of green tea that is specially processed before being ground into a fine powder.
The important difference is not that matcha comes from a completely different plant. It is still green tea. What sets it apart is how the tea plant is grown, prepared, and consumed.
Before harvest, tea plants used for matcha are shaded from direct sunlight for a period of time. This changes the plant’s chemistry, encouraging the accumulation of compounds such as chlorophyll and L-theanine. The leaves are then harvested, steamed, dried, and processed into tencha before being finely ground.
This also explains why asking what is matcha latte made of has a slightly different answer.
A traditional matcha latte contains matcha powder plus milk or a milk alternative, and usually some sweetener. The matcha itself, however, contains no milk or added flavoring. It is simply finely ground tea leaf.
2. What’s Inside Matcha Powder?
Knowing what is matcha made of becomes more interesting when you look beyond the ingredient list.
Because you consume the powdered leaf rather than simply steeping tea leaves and throwing them away, matcha delivers a concentrated mixture of compounds naturally present in the tea plant.
So, what is matcha made out of at the chemical level? Several compounds contribute to its color, flavor, caffeine content, and potential health effects.
Chlorophyll
Chlorophyll is one of the easiest matcha compounds to recognize because it helps give the powder its intense green color. The shade-growing process plays an important role in how much chlorophyll accumulates in the leaves.
When tea plants receive less direct sunlight before harvest, they adapt by maintaining and producing more chlorophyll to capture available light. This helps explain several characteristics of matcha:
- Deeper green color: Higher chlorophyll levels contribute to matcha’s vibrant green appearance, which can be much more intense than the softer green or yellow-green color of some brewed teas.
- Effect of shade growing: Covering the tea plants before harvest changes the plant’s chemistry and contributes to the distinctive composition of tencha, the tea leaf used to make matcha.
- Whole-leaf consumption: Because matcha is consumed as a powder rather than steeped and discarded, you consume the chlorophyll naturally present in the tea leaf.
Research comparing tencha with traditional green tea has found higher chlorophyll levels in tencha leaves. However, it is important not to overstate what this means for health.
Chlorophyll is one of many naturally occurring compounds in matcha, not a reason to treat matcha as a cure-all or assume that every health claim associated with chlorophyll is scientifically established.
L-Theanine
L-theanine is an amino acid naturally found in tea leaves and one of the compounds that makes matcha taste different from many other teas.
Shade cultivation helps preserve and increase L-theanine in the leaves. The compound contributes to the savory, umami character associated with matcha and helps balance some of the bitterness that can come from tea’s catechins and caffeine.
L-theanine has also attracted scientific interest because of its potential effects on attention, relaxation, and cognitive function. Some research suggests that L-theanine and caffeine together may have effects on attention and alertness, although the strength of these effects depends on the amount consumed and the individual.
So when people describe matcha as providing a different kind of energy from coffee, L-theanine is one of the compounds often discussed alongside its caffeine content.
Caffeine
Matcha is not caffeine-free. In fact, it can contain a relatively substantial amount of caffeine compared with many other green teas. Because you consume the whole powdered leaf, rather than only the compounds extracted into water, matcha’s caffeine content depends on both the tea itself and how you prepare it.
Several factors can affect how much caffeine ends up in your cup:
- Type of tea: Different tea varieties and growing conditions can have different caffeine levels.
- Amount of matcha: Using more powder generally means consuming more caffeine.
- Processing and harvest: The tea plant’s variety, harvest conditions, and processing can influence its final caffeine content.
- Preparation method: A small amount of matcha whisked into a latte will provide a different amount of caffeine from a stronger serving prepared with more powder.
If you are sensitive to caffeine, treat matcha as a caffeinated beverage rather than assuming it will be mild simply because it is green tea.
Antioxidants
Matcha is also known for its catechins, a group of polyphenols found naturally in green tea. One of the most studied is epigallocatechin gallate (EGCG).
These compounds have antioxidant activity, which is one reason matcha has attracted so much attention in nutrition research. Because the whole tea leaf is consumed, matcha can provide these compounds in a concentrated form compared with some preparations of brewed green tea.
However, the amount of catechins in matcha is not fixed. Cultivar, leaf age, growing conditions, shading, processing, and preparation can all affect its chemical composition.
In other words, what is matcha powder made of is more than just “green tea and antioxidants.” It is a whole tea leaf containing a mixture of caffeine, amino acids, catechins, chlorophyll, minerals, and other naturally occurring compounds.
>>> Also read: How to Brew Pour Over Coffee: The Complete Step-by-Step Guide for Perfect Cups (2026)
3. How Matcha Is Made: From Leaf to Powder in 4 Steps
If you’re wondering matcha what is it made of from a production perspective, the process explains much of its distinctive color, taste, and composition.
Step 1: Shade the Tea Plants
Several weeks before harvesting, tea plants intended for matcha production are covered to reduce their exposure to direct sunlight.
This is one of the most important differences between matcha and ordinary green tea. Reduced light changes the plant’s metabolism and encourages the accumulation of compounds including chlorophyll and L-theanine. The result is a leaf with a deeper green color and a stronger umami character.
Step 2: Harvest the Young Leaves
The leaves are harvested after the shading period, with younger leaves generally preferred for higher-quality matcha.
Young leaves tend to have a different chemical profile from older leaves, including differences in amino acids and caffeine. The harvested material is then prepared for processing rather than being rolled and dried in the same way as many other Japanese green teas.
Step 3: Steam and Dry the Leaves
After harvesting, the leaves are steamed to stop enzymatic oxidation. This helps preserve the green color and keeps the tea in the green-tea category rather than allowing it to develop the darker characteristics associated with oxidized teas.
The leaves are then dried and processed into tencha, with stems and veins removed as part of the preparation. This creates the material that will eventually become matcha powder.
Step 4: Grind Tencha Into Fine Powder
The processed tencha is slowly ground into an extremely fine powder. Traditionally, stone mills are used for this stage.
The result is the bright green powder we recognize as matcha. Unlike loose-leaf tea, there is no need to discard the leaves after brewing. You whisk the powder into water, milk, or another liquid and consume the leaf itself.
That is why matcha behaves differently from a regular cup of green tea. You’re not simply drinking water that has extracted some compounds from tea leaves. You’re consuming the finely ground leaf.
4. Is Matcha a Healthy Choice?
Matcha can be a nutritious addition to a balanced diet, particularly because it provides naturally occurring catechins, L-theanine, caffeine, and other compounds found in green tea. Its shade-growing and whole-leaf preparation also give it a distinctive chemical profile compared with conventional green tea.
However, “healthy” does not mean unlimited or suitable for everyone.
Matcha still contains caffeine, and sweetened matcha lattes can contain substantial amounts of added sugar depending on the recipe. The health effects of matcha are also still being studied, so it is better to view it as a nutrient-rich beverage rather than a miracle food.
For most people, the bigger question is how matcha fits into their overall diet. Choosing a minimally sweetened preparation and paying attention to portion size can make it easier to enjoy the flavor without turning a simple tea into a high-sugar drink.
Final Thoughts
So, what is matcha made of? At its core, it is finely ground, shade-grown green tea leaves. The unique growing and processing methods help shape its vibrant color, umami flavor, caffeine content, L-theanine, and catechins.
Once you understand how those leaves become powder, the bright green drink on your café menu becomes a lot more interesting than it first appears. Keep exploring practical tips, guides, and everyday advice on the AirTalk Wireless blog.
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