Matcha and loose-leaf green tea both come from Camellia sinensis. Their distinction reaches beyond powder and leaf. Cultivation, manufacture, physical form and preparation all take different paths.
Matcha is a specific tea made from tencha. Ordinary green tea ground into powder does not acquire the same identity through milling alone.
From shaded shoot to tencha
Tea shoots intended for tencha are grown under shade for a defined period before harvest. After plucking, they are steamed and dried without the rolling used for many other Japanese green teas.
The dried material is refined. Stems and coarse veins are removed, leaving the leaf material prepared for fine milling. Traditional stone mills remain an important part of matcha craft, while recognised definitions also allow equivalent tea-milling methods. Stone grinding is a tradition, not a universal test for every matcha.
This sequence gives the word matcha its precision: shaded tea shoots, tencha manufacture, refinement and fine milling.
What happens in the bowl
Matcha is whisked into water. Fine tencha particles disperse through the bowl alongside the parts of the tea that dissolve. The drink is therefore a suspension as well as a liquid extraction.
When the bowl is finished, the dispersed leaf material is taken with the drink. The familiar whole-leaf shorthand needs care, since stems and coarse veins were removed during refinement and a little powder may remain in the bowl.
The accurate point is simple: matcha keeps fine tencha particles within the prepared drink.
What happens in an infusion
Loose-leaf green tea is placed in a pot, bowl, gaiwan or strainer and infused with water. Soluble parts of the tea enter the liquor, while most of the leaf material remains in the vessel. Fine fragments may pass into the cup, depending on the tea and the preparation.
The leaf may be whole, broken, rolled, twisted or shaped. Loose leaf describes the form in which the tea is prepared, not a guarantee that every leaf remains anatomically whole.
After one infusion, many green teas can be steeped again. Their leaves open and change across successive waters. Matcha follows another rhythm: measure, sift if needed, add water and whisk the suspended tea for the bowl at hand.
Two forms, two preparations
Neither form completes a hierarchy. Matcha offers the gathered texture of finely milled tencha in suspension. Loose-leaf green tea offers the progression of an infusion whose leaves remain available for another steep.
Quality in either form depends on source material, manufacture, freshness, storage and preparation. Colour alone gives an incomplete judgement. Price alone does the same.
The implements make the distinction visible. Matcha practice gathers a bowl, whisk, measured powder and water. The powder is dispersed for the bowl being served. Loose-leaf practice gathers a brewing vessel, leaf and a way to separate liquor from leaf. The same leaves may meet water several times.
At the table, attention follows the form. Matcha asks for even measurement, water suited to the tea and a whisking action that distributes the powder through the bowl. Loose leaf asks for enough room for the leaf to open, a clear pouring point and attention to the change from one infusion to the next.
These are descriptions of preparation rather than promises about effect. A bowl of matcha and an infusion of green tea can each be made with care or made poorly. The name of the form never replaces the quality of the material or the skill of preparation.
Both are green tea. Each carries its own implements, sequence and pace. Their difference becomes clearest through making the bowl and meeting the leaf in the form it has been given.