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Light Roast · Onyx Coffee Lab

Cold Brew

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Roasted to order Within 48h of leaving the drum
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— About this coffee

Ships within 1 week of your roast date. 100% specialty arabica.

A low-acid coffee blend built for cold brew

Cold Brew is a medium-roast blend of washed Ethiopian and Colombian Caturra, roasted longer to lower acidity and build a thick, sweet body. Designed for cold extraction, it brews smooth and creamy with cocoa, dates and brown sugar. For anyone who wants a fridge-ready, low-acid coffee.

Tasting Notes

Cocoa · Dates · Brown Sugar · Stone Fruit
Low acidity, a thick and creamy body, and a long, sweet finish that drinks beautifully black or with milk.

Coffee Details

Origin Ethiopia & Colombia (blend)
Variety Caturra (Colombian component)
Processing Washed
Roast Level Medium (Agtron #85)
Cupping Score 86.5
Best For Cold brew
Tasting Notes Cocoa, dates, brown sugar, stone fruit

About This Coffee

This blend is built backwards. Instead of starting with a country and hoping the cup falls into place, the flavour profile comes first — cocoa, dates, stone fruit and brown sugar — and the coffees are chosen to hit it. A washed Ethiopian, roasted longer than usual, brings the stone fruit and brown sugar. A washed Colombian Caturra adds the cocoa, date sweetness and creamy texture.

Cold brew rewards low acidity and high sugar browning, so the roast is pushed to take on more heat through caramelisation and extend the roast time. That builds body and strips out sharp acidity, leaving a coffee that stays smooth and sweet on its own and plays well with milk. It cups at 86.5 and is designed for cold extraction only — this is not a hot-filter coffee.

The blend keeps to a small number of components in a fixed ratio and refreshes its coffees through the year, so what is in your bag is always in season and tasting at its peak.

How to Brew Cold Brew

Method Cold brew (Toddy, paper + mesh filter)
Coffee 283g, coarse ground
Water 1750g at room temperature
Steep Room temperature, then filter and chill

Scale the ratio down for a smaller batch (roughly 1 part coffee to 6 parts water). If the concentrate tastes thin, grind a touch finer or steep a little longer; if it tastes harsh, grind coarser.

How Much Coffee Is in a Bag?

The 283g bag makes around 15 servings at 18g each, about RM9.00 per cup. The 2lb (907g) bag makes roughly 50 servings, about RM5.80 per cup — the better value for regular cold brew drinkers. As a concentrate, one batch stretches across several days in the fridge.

Frequently Asked Questions

Is this coffee only for cold brew?
Yes — it is built for cold extraction. The longer roast lowers acidity and boosts sweetness for cold steeping, so it shines as cold brew rather than as a hot filter or espresso.

What does it taste like?
Cocoa, dates and brown sugar with a hint of stone fruit. Low acidity, thick and creamy body, and a long sweet finish. Smooth black or with milk.

Is it a single origin or a blend?
A blend of washed Ethiopian and washed Colombian Caturra, each chosen for a specific part of the flavour profile.

How fresh is it?
Roasted in Kuala Lumpur and shipped within one week of your roast date. It is at its best two to three weeks after roasting, so there is no rush to brew straight away.

Do you offer free shipping?
Yes. Free shipping within Malaysia on orders over RM80.

Want to try before committing? Explore the Taster Box. Buying for an office or café? See Bulk & Office Orders.

— Tasting notes

In the cup.

How Cold Brew shows up — flavour profile, body, finish — graded on our internal cupping rubric.

Origin
Onyx Coffee Lab
Roast level
Light Roast
Best for
Filter · Pourover
Brew ratio
1 : 16 (filter) · 1 : 2 (espresso)
— Brew suggestions

Brew it
like this.

Pourover (V60)
Ratio
15g : 250g
Time
3:00
Temp
93°C

Bloom 30s. Four pours of 60g, 30s apart.

French Press
Ratio
30g : 500g
Time
4:00
Temp
92°C

Plunge slow. Decant immediately to avoid over-extraction.

Espresso
Ratio
18g : 36g
Time
28s
Temp
93°C

Distribute, tamp level, pull. Adjust grind to hit time.

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