The Science of Tea
Differences between tea bags, loose-leaf tea, and Kyufi powdered tea
Understanding a true breakthrough — KYUFI is not a mere improvement on classic tea. It's a different way of thinking about tea.
The Tea Market: loose leaf or teabag, a general confusion
Loose leaf tea
Whole leaves keep their essential oils intact, delivering the richest aromatic complexity and a cup that evolves on the palate. But it demands time, precise water temperature, a teapot or infuser, and it always leaves wet leaves to dispose of.
Teabag
Broken leaves and dust brew fast and travel easily, but the finer particles release tannins quickly and flatten the aroma. The result is convenient, yet limited in taste — and many bags introduce microplastics into the cup.
The heart of the problem: infusion itself
Both formats leave the final quality in the hands of the drinker. Water temperature, steeping time, leaf quantity and human attention all shift from one cup to the next. Even with excellent tea, the result is variable and unstable — never twice the same.
Each has its strengths, each has its limits
A side-by-side look at what each format actually delivers in daily life.
| Loose Leaf Tea | Teabag | Kyufi | |
|---|---|---|---|
| Aromatic complexity | Very high with whole leaves | Limited, flattened by broken leaves | Full complexity, extracted and preserved |
| Consistency | Variable, depends on the brewer | Variable, easily over-steeped | Identical in every cup |
| Preparation time | 4 to 6 minutes | 2 to 4 minutes | 20 seconds |
| Equipment required | Teapot, infuser, kettle, timer | Cup and hot water | None — a stick and any water |
| Waste & residue | Wet leaves to strain and discard | Used bag, string and tag | No residue, fully soluble |
| Purity | Depends on the garden and sourcing | Risk of microplastics from the bag | No microplastics, no detected pesticides |
The KYUFI breakthrough: upstream extraction
Instead of asking you to extract the tea, we do it first — under laboratory-controlled conditions — and hand you the finished essence.
- 01
Selecting the finest tea leaves
Our tea masters source and taste whole leaves from selected gardens, keeping only the batches that meet our aromatic standard.
- 02
Optimised aromatic extraction in the laboratory
Temperature, time and water quality are precisely controlled so every aromatic compound is captured at its peak — no bitterness, no loss.
- 03
Transformation into a 100% pure, stable soluble powder
The extract is concentrated into a naturally soluble powder: no additives, no preservatives, no artificial flavours, and a stable profile over time.
- 04
Instant reconstitution in hot or cold water
You open a stick, pour and stir. The tea rebuilds itself in seconds, exactly as the tea master intended.
With KYUFI, the extraction is already done.
Benefits & nutritional quality
Antioxidants and polyphenols preserved
Controlled extraction protects the catechins and polyphenols naturally present in the leaf, without chemical residues or solvents.
Gentler on digestion
Because steeping is never overdone, the cup carries far fewer harsh tannins — lighter on the stomach, cup after cup.
Progressive energy, no crash
The natural caffeine and L-theanine balance delivers steady alertness that fades gently instead of dropping.
Pure by design
No microplastics, no preservatives, no detected pesticides — only concentrated tea essence.
Hot or cold: a decisive advantage
Hot water
The powder dissolves in a few seconds in a mug of hot water — no teapot, no infuser, no timer. At home, at the office or travelling, the cup is ready before the kettle has cooled.
Cold water
Unlike leaves, which need heat to release their aromas, KYUFI dissolves straight into cold water or over ice. Instant iced tea, full flavour, zero waiting.
Taste the difference for yourself
Explore the KYUFI range in single-serve sticks and Nespresso® or Dolce Gusto® compatible capsules.
Discover our teas