Guides
Brew it better, pick the right gear, and know your coffee. Straight answers from the Killer Coffee team.
Brew guides
Step-by-step guides for every way you brew Killer: espresso, AeroPress, cold brew, moka pot, capsules and drip bags.
Brew guide
How to Make Espresso at Home
Use 22g of finely ground coffee to get about 40g of espresso in 28 to 32 seconds, at 91–94°C. If it runs fast and tastes sour, grind finer. If it runs slow and tastes bitter, grind coarser.
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Brew guide
How to Brew Coffee with an AeroPress
For an everyday cup, steep 15g of finely ground coffee in 225g of water just off the boil for 2 minutes, then press slowly. For an espresso-style shot, use 25g of coffee and 90–100g of water, and press after 90 seconds.
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Brew guide
How to Brew Coffee with a Moka Pot
Fill the base with hot water to just below the valve. Fill the basket level with medium-fine coffee, without tamping. Heat on medium-low, and take it off as soon as it starts to sputter.
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Brew guide
How to Make Cold Brew Coffee (Toddy Method)
Steep 340g of coarse coffee in about 1.7L (7 cups) of filtered water at room temperature for 12–24 hours, then drain. You get a concentrate that keeps up to 2 weeks in the fridge. Mix 1 part concentrate with 3 parts water or milk.
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Brew guide
How to Use a Drip Coffee Bag (Rip 'n Drip)
Hang the bag over your mug, then slowly pour 200–250mL of water that's been off the boil for about a minute, in a few small pours. Let it drip through, then take the bag out. For extra kick, let it sit in the cup for up to 4 minutes.
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Brew guide
How to Use Coffee Capsules Properly
If your capsule coffee tastes bitter or ashy, the shot is probably too long. A capsule holds about 5g of coffee, a third of a normal espresso dose, so start at the ristretto button (about 25mL), go shorter if it still tastes bitter, and only use Lungo with capsules made for it.
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Brew guide
How to Make Plunger Coffee (French Press)
Use 30g of coarse ground coffee to 500mL of water just off the boil. Stir, steep for 4 minutes, scoop off the foam, then press slowly and pour it all out straight away. Wait a few extra minutes before pressing for a cleaner cup.
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Brew guide
How to Use Coffee Dunk Bags
Drop a bag in your mug, pour in 250mL of hot water and dunk it for 15 to 30 seconds. Let it steep for 5 minutes, give it one last dunk, then take the bag out. Leave it in longer for more strength.
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Brew guide
How to Use Coffee Concentrate
Pour 30mL of Killer Concentrate into a cup, then add about 180mL of water or milk, hot or cold. That's 1 part concentrate to 6 parts, and it's ready in seconds. Use more concentrate for a stronger cup.
Read guide →Coffee knowledge
Storage, grind size, caffeine and strength, explained straight.
Know-how
Whole Bean vs Ground Coffee: Which Should You Buy?
Whole beans stay fresh longer and let you set the grind for any method, but you need a grinder. Ground coffee is quicker and ready for your method, but loses its aroma faster once opened. No grinder? Buy ground in smaller bags, in the grind that matches how you brew.
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Know-how
What Makes Coffee Strong?
"Strong" means three different things: caffeine (set mostly by the bean and how much coffee you use), brew strength (how concentrated the cup is, set by your coffee-to-water ratio) and flavour (set mostly by the roast). A dark roast tastes bolder but has about the same caffeine as a light one, and bitterness isn't strength.
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Know-how
How Much Caffeine Is in Coffee?
A café espresso in Australia averages about 106mg of caffeine, but shots range from about 25mg to over 200mg. A teaspoon of instant has about 60 to 80mg. For healthy adults, up to about 400mg a day is generally considered safe, and up to 200mg a day during pregnancy.
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Know-how
Coffee Grind Size Explained (With a Grind Chart)
Match the grind to how long the coffee sits in the water. Quick brews like espresso need a fine grind; long ones like plunger and cold brew need coarse. If your coffee tastes sour, grind finer. If it tastes bitter, grind coarser.
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Know-how
How to Store Coffee So It Stays Fresh
Keep coffee airtight, dark, cool and dry: in its bag with the air squeezed out and sealed, or in an opaque airtight canister in the cupboard. Once opened, whole beans are at their best for about 1 to 3 weeks and ground coffee for 1 to 2 weeks. Skip the fridge, and only freeze it in sealed portions.
Read guide →Brewing gear
The kit behind a great cup, the story behind it, and how to get the most out of it.
Gear guide
The Meraki Espresso Machine: Is an All-in-One Right for You?
The Meraki is an all-in-one espresso machine: a built-in grinder, two built-in scales, dual boilers and a proper steam wand in one unit. It weighs your dose and stops each shot by weight, which takes most of the guesswork out of espresso at home. It suits anyone who wants café-style coffee every morning without building a setup piece by piece.
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Gear guide
Toddy Cold Brew: The 60-Year-Old System Behind Smooth Cold Brew
A Toddy steeps coarse coffee in cold water for 12–24 hours, then filters it into a concentrate that keeps in the fridge for up to two weeks. Mix it with water or milk, hot or iced. It's smoother and rounder than hot-brewed coffee, and one batch covers you for days.
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Gear guide
The AeroPress: Why a Garage Invention Became the World's Favourite Coffee Press
The AeroPress is a hand-powered coffee press that steeps coffee, then pushes it through a paper filter with air pressure. It makes a strong, clean cup in about two minutes, packs into a bag, survives travel and costs under $100. It's the easiest way to brew genuinely good coffee without a machine.
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Seriously strong. Bitter-free. Pick your strength.
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