Compare two teas

Side by side across seven dimensions. There is no verdict and no winner — the purpose is to understand the difference, not to be told which to buy.

Assam

অসম চাহ

Black tea

Keemun

祁門紅茶

Black tea

TeaHQ has written about this pair

Five black teas that share a processing route and almost nothing else. Anyone who has decided black tea is one flavour has met one of these and generalised from it.

Where it is from and what leaf
Assam: North-east India, native large-leaf assamica on a hot river plain.Keemun: Anhui, China. Small-leaf sinensis, and a tea invented only in the 1870s.
What makes it distinctive
Assam: Full oxidation on assamica, giving the most body and the most malt.Keemun: A cocoa-and-pine sweetness that no other origin reproduces.
Commonly described as
Assam: Malty, brisk, heavy-bodied, with raisin and cocoa.Keemun: Cocoa, pine, dried plum and orchid; softer than any Indian black.
Brewing
Assam: Boiling water, three to four minutes. Very forgiving.Keemun: 90 to 95 °C, three minutes; also rewards gongfu.
With milk?
Assam: Built for it.Keemun: Takes a little without collapsing, and is more interesting without.
Who may prefer it
Assam: Anyone wanting a strong, forgiving mug with milk.Keemun: Anyone who finds Indian blacks too sharp but wants real depth.

In summary: Dian Hong is the easiest of the five to enjoy without milk and the best starting point for someone who has only met breakfast blends. Assam is the reference for what 'malty' means. The others are each doing something specific enough that liking one predicts little about the rest.

Point by point

DimensionAssamKeemun
CategoryBlack tea · fully oxidisedBlack tea · fully oxidised
ProductionIn order: Withering → Rolling and shaping → Oxidation → Drying. bud and two leaves and second flush harvest.In order: Withering → Rolling and shaping → Oxidation → Drying. bud and two leaves and spring harvest.
OriginIndia — AssamChina — Qimen
Flavourchocolate and fruity. full bodied, drying and rich in the mouth. Aroma: malt, raisin, cocoa, baked bread. Straightforward in character. Bold in intensity.chocolate, woody and smoky. medium and smooth in the mouth. Aroma: cocoa, pine, dried plum, orchid. Layered in character. Moderate in intensity.
BrewingWestern brewing (teapot or mug): 1–1.5 g/100 ml at 95–100 °C, first steep 240s. Mug infuser brewing: 1–1.5 g/100 ml at 95–101 °C, first steep 180s.Western brewing (teapot or mug): 1–1.5 g/100 ml at 90–95 °C, first steep 180s. Gongfu brewing (gaiwan): 4–5 g/100 ml at 90–95 °C, first steep 10s of 5 authored. Mug infuser brewing: 1–1.5 g/100 ml at 95–101 °C, first steep 180s.
Cultural contextUsed in Chai culture in India and Taiwanese bubble tea culture.Not recorded for this tea.
Who may prefer itSomeone who wants the cup to assert itself and wants to enjoy it on the first cup. It tolerates an imprecise brew and takes milk.Someone who wants presence without being dominated and wants to enjoy it on the first cup. It tolerates an imprecise brew.

Nothing above is a recommendation. The last row describes the drinker each tea suits, using each tea’s own authored fields and the same sentence structure for both, so neither can be framed as the safe choice.

Brew Assam · Brew Keemun