Pyramid teabag
A tetrahedral sachet of woven mesh, holding more volume relative to its seams than a flat paper bag and giving whole leaf room to open. It is a genuine improvement on the flat double-chamber bag in one specific respect — headspace — and it is not evidence about the leaf inside it.
Identity
- Category
- Filter or infuser
- Also called
- mesh sachet, silken bag, tetrahedral teabag
- Material
- Woven nylon, PET or plant-derived PLA mesh; some are heat-sealed paper
- Typical capacity
- 10–30 ml
- Skill level
- Beginner
Porosity
Not porous. It contributes nothing of its own to the liquor, so it can be moved between teas freely and washed with detergent without consequence.
Where it comes from
Modern and commercial.
Named here rather than presented as generic equipment. The object belongs to a practice, and TeaHQ describes it from the outside.
If you do not own one
An empty fill-your-own filter bag gives the same headspace with leaf you chose. A basket infuser gives more room than either.
This one is not marked essential. The tea can be made without it.
Brewing methods it is used for
- Tea bag brewing — Pre-portioned tea in a permeable bag. The format was an accident of early twentieth-century sampling practice and became the dominant way tea is drunk worldwide, because it removes every decision except how long to leave it in.
Care and maintenance
Single use. The mesh material varies and not all of it is compostable despite the appearance — plant-derived mesh generally needs industrial composting rather than a garden heap.
Other filter or infusers
Sources
This page is TeaHQ synthesis. No external source stands behind the description, the material or the account of how the object is cared for. Where the record names a tradition, that attribution is TeaHQ’s own reading of common practice rather than a citation.
In the chronology
- Patented 1903; the Sullivan story is set around 1908 — Where the tea bag actually came from
TeaHQ names no maker, brand or shop and has nothing to sell. Nothing on this page should be read as advice to buy the object — the substitute note above exists because owning it is usually optional.
Written comparisons
Where TeaHQ has set this piece of teaware against something it is routinely confused with, and argued the differences out in full.
- Pyramid teabag vs empty filter bag — Two mesh sachets with opposite economics. One arrives filled by a manufacturer with tea they chose; the other arrives empty and is filled by the drinker with tea they chose. The mesh is the least interesting difference between them.