lǜchá fěn

The term “tea powder” on a store shelf can mean three completely different products, distinguished by raw material, technology, and behaviour in water. Below is an attempt to differentiate mǒchá (抹茶), ground green tea (绿茶粉), and instant tea (速溶茶), relying on verifiable characteristics rather than marketing.

Why These Are Three Different Things

The main difference is easiest to see in a glass. Mǒchá and ground green tea are a suspension of whole, crushed leaf: you drink the leaf itself, particles settle, the beverage is cloudy and opaque. Instant tea is an extract: the leaf was steeped, removed, and the concentrate dried; it dissolves completely in water, leaving no sediment. All other differences — in color, taste, price, and culinary behaviour — stem from this.

It is worth immediately clearing up terminological confusion. Historically, during China’s Tang and especially Song dynasties, tea ground into powder — mòchá (末茶, “tea dust”) — was whisked into a froth and consumed; this culture of whipped powdered tea was later adopted and brought to its canonical form in Japan. The modern Chinese word 抹茶 (mǒchá) for shade-grown ceremonial powder is largely a back-borrowing from Japanese. Therefore, “authentic Chinese matcha” is a conditional concept: it refers to a technology, not national affiliation.

Matcha 抹茶 (mǒchá): Shading and Stone Grinding

Mǒchá is not simply “green tea that was ground.” It is a distinct technological chain, and this is what determines its price and quality.

Shading. For a period before harvest (on the order of several weeks), the bushes are covered with nets or straw mats, depriving them of direct light. In the shade, the plant accumulates chlorophyll and amino acids (primarily theanine) and reduces the synthesis of catechins. The result is a rich emerald color, a mild umami taste, and reduced astringency. Without this stage, the powder will be yellow-green and coarse.

Raw material (碾茶, niǎnchá). The harvested tender leaves are steamed (fixation by steam, not heat in a wok), then dried without rolling, and the stems and veins are removed. The result is a loose, brittle “prepared leaf” — Ch. 碾茶, Jp. tencha. The absence of rolling is fundamental: this is the only way the leaf can later be ground into the finest powder.

Grinding. Classically, this is done on granite millstones (石磨, shímò), which rotate slowly to avoid heating the powder (heat kills color and aroma). The productivity of stone grinding is extremely low, which explains the high price of the ceremonial grade. Industrial lines use ball mills and jet mills, but there is traditionally a premium for “millstone” provenance.

Fineness. Good mǒchá is ground to micron-sized particles; to the touch, it is smooth powder, not “sand.” The fineness of particles directly affects how smooth and stable the suspension will be upon whisking.

Regarding standards. China has a dedicated national standard for matcha (抹茶); its number should be verified against the current edition of the GB/T catalog, so it is intentionally omitted here to avoid error. The key idea of the standard is that mǒchá is defined specifically through shaded raw material of the 碾茶 type and ultra-fine grinding, not simply as “ground green tea.”

Ground Green Tea Powder 绿茶粉 (lǜchá fěn): Same Leaf, Different Idea

Ground green tea (绿茶粉, lǜchá fěn) is made from ordinary, unshaded green tea, which is most often fixed by heat (not steam) and frequently rolled using standard technology, and only then ground. This is a completely legitimate product — but of a different purpose and class.

Differences from mǒchá:

• Color. Without shading, yellow-green, olive tones predominate; there is no bright “grassy neon.”
• Taste. Noticeably more bitterness and astringency (catechins are not suppressed by shade), less umami-sweetness.
• Grind. As a rule, coarser; particles are larger, the suspension separates faster, and a “graininess” may be felt in the mouth.
• Purpose. This is primarily a food ingredient — for baking, ice cream, noodles, lattes, where color and a tea note are needed at a reasonable price, not a ceremonial bowl.

Due to their external similarity, ground green tea powder is often sold as matcha. Formally, both are crushed leaf, but technologically and organoleptically they are different things, and the price should reflect this.

Instant Tea 速溶茶 (sùróng chá): Extract, Not Leaf

Instant tea (速溶茶, sùróng chá) belongs to a different category — it is an extracted product. A simplified chain is as follows:

1. Extraction — the leaf is steeped in hot water to obtain a tea infusion.
2. Concentration — the infusion is evaporated to remove some of the water.
3. Drying — the concentrate is turned into powder. Spray-drying is most often used: the concentrate is sprayed into a stream of hot air, and the droplets instantly dry into granules. A more delicate (and more expensive) method is freeze-drying, which better preserves the aroma.

Behaviour in water is the main diagnostic sign: good quality instant tea dissolves without residue, yielding a clear (light for green, amber for black) infusion. No sediment at the bottom, no cloudiness from suspended particles.

The strengths and weaknesses are obvious. Pros — instantaneity, convenience, stability, a good base for iced tea and blends. Cons — loss of some volatile aromas during thermal drying (hence a “flat,” sometimes “stewed” character in cheap samples) and the risk of extraneous additives (sugar, flavorings, maltodextrin as a carrier). Instant tea is made from any type — green, black (red), oolong; it is a technology, not a variety.

How to Distinguish in Practice

• Water test. Stir a pinch into cold water. Complete dissolution, transparency → instant tea. A persistent cloudy suspension that settles over time → ground leaf (mǒchá or 绿茶粉).
• Color. A deep, almost fluorescent emerald → a sign of shaded mǒchá. Dull olive, yellow-green → most likely ordinary ground green tea.
• Tactility. Between the fingers, good mǒchá feels like smooth powder, without “sand”; 绿茶粉 more often feels granular.
• Aroma. Mǒchá offers a fresh “marine”/herbaceous sweetness with an umami note; ordinary ground green tea — a sharper, sometimes hay-like bitterness; instant tea — a muted, “dry” aroma.
• Price. Ceremonial mǒchá cannot cost as much as a culinary powder; a suspiciously cheap “matcha” is almost certainly 绿茶粉.

Preparation and Application

• Mǒchá. Sift to remove clumps. Add water that is not boiling (tentatively around 70–80 °C — the exact temperature should be adjusted for the specific powder), whisk with a bamboo whisk (茶筅, cháxiǎn) until a stable, fine foam forms. The finer the grind and more stable the suspension, the easier it is to achieve a silky foam. Also used in lattes and confectionery.
• Ground green tea powder. It is more logical to use as an ingredient: in dough, creams, beverages with a softening base (milk, sweetener), where bitterness works to advantage.
• Instant tea. Simply stir into water of the desired temperature; ideal for iced tea because it dissolves even in cold water.

A Brief Summary

The three powders answer three different demands. Mǒchá is “drinking the whole leaf” in its most expensive and labor-intensive form, with shading and stone grinding. Ground green tea is an honest food ingredient of the same physical type, but without shading and without ceremonial ambitions. Instant tea is the convenience of an extract, where the whole leaf is no longer in the cup. By understanding what you are holding — a suspension or a solution, a shaded leaf or a regular one — you stop overpaying for a substitution and select the product for your task with greater precision.