Question 1

What is the correct coffee to water ratio in 2026?

Accepted Answer

The Specialty Coffee Association (SCA) recommends a 1:15 to 1:17 ratio for drip and pour over — about 60g of coffee per litre of water. For espresso: 1:2 ratio (18g coffee → 36ml espresso). French press: 1:12. Cold brew concentrate: 1:8. Adjust to taste — more coffee = stronger brew.

Question 2

How much caffeine is in a cup of coffee?

Accepted Answer

A standard cup (240ml) of drip coffee contains 80–120mg of caffeine. Espresso (30ml double shot) has 60–100mg per shot but is more concentrated. Cold brew can have 150–240mg per serving depending on concentration. The FDA recommends a maximum of 400mg per day for healthy adults.

Question 3

How long does caffeine stay in your body?

Accepted Answer

Caffeine has a half-life of approximately 5 hours — meaning if you drink 200mg of caffeine at 2pm, about 100mg remains at 7pm, 50mg at midnight, and 25mg at 5am. To fall asleep easily, aim for less than 50mg in your system. A 2pm coffee is generally fine; a 5pm coffee may still affect sleep quality for light sleepers.

Question 4

Is 2–3 cups of coffee a day healthy?

Accepted Answer

Yes — research consistently shows 2–4 cups per day (200–400mg caffeine) is associated with reduced risk of Type 2 diabetes, Parkinson's disease, and liver disease. The 400mg daily limit applies to healthy adults. Pregnant women should limit to 200mg/day. People with anxiety, heart conditions, or acid reflux may need to reduce intake.

Question 5

What is the best coffee to water ratio for Malaysians?

Accepted Answer

Most Malaysian kopi is made with a 1:6 to 1:8 ratio — much stronger than Western drip coffee. A standard kopi-o at a kopitiam uses about 15–20g of Robusta coffee grounds per 120–150ml of water. For specialty pour over (common in KL cafes), 1:14 to 1:16 is standard. Adjust based on your roast level — lighter roasts need slightly more coffee.

Method	Coffee	Water	Caffeine	Strength
Espresso (double shot)	18g	36ml	~153mg	Very High
Pour Over	20g	300ml	~150mg	Medium
French Press	20g	240ml	~140mg	Medium
Drip Coffee	20g	300ml	~150mg	Medium
Cold Brew (conc.)	50g	400ml	~225mg	High
AeroPress	15g	150ml	~120mg	Medium-High
Moka Pot	15g	105ml	~135mg	High

Monthly	10 yrs	20 yrs	30 yrs
RM300/mo	RM61k	RM228k	RM678k
RM500/mo	RM102k	RM380k	RM1.13M
RM531/mo	RM109k	RM404k	RM1.2M

Coffee Calculator Malaysia 2026

Coffee Calculator

☕ Brew Ratio Calculator

📊 Daily Caffeine Intake

⏱️ Caffeine Half-Life — When Can You Sleep?

Kopi Premium RM2.99 — Bukan Harga Biasa

Brew Method Comparison

RM500/Month for 30 Years = RM1.13M — via S&P 500 at 10% p.a.

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