The Drip News

Tag: Filter

  • What Does “1:16 Ratio” Mean in Coffee?

    When you see 1:16, 1:15, or 1:17 in a coffee recipe, the first number is coffee and the second is water, both measured by weight. A 1:16 ratio means 1 gram of coffee for every 16 grams of water.

    Translating to actual amounts

    For a typical single cup using a V60 or AeroPress, 18 grams of coffee at 1:16 means 288 grams of water. Most drinkers round to 290 for simplicity. For two cups, scale up: 30 grams of coffee at 1:16 is 480 grams of water.

    Why ratios matter more than scoops

    Coffee beans vary in density. A scoop of light-roasted beans weighs less than a scoop of dark-roasted beans of the same volume. A scoop is also imprecise; it changes with how you fill it. Weight is consistent. A scale that measures to one gram is the single best small upgrade for any home brewer.

    Common ratios and what they produce

    1:14 to 1:15 Stronger, bolder cup. Suited to French press and darker roasts.

    1:16 The default for pour-over and AeroPress. Balanced, with good clarity.

    1:17 to 1:18 Lighter, more tea-like. Common for delicate Ethiopian washed coffees.

    Espresso ratios are different

    Espresso uses a different format. 1:2 in espresso means the brewed shot weighs twice the dry coffee dose: 18g in, 36g out. This is yield ratio, not brew ratio in the same sense. Espresso uses much less water and much more pressure, so the math is calibrated separately.

  • What Is Bloom in Pour-Over Coffee?

    The bloom is the first stage of a pour-over brew. You add a small amount of water to the dry grounds (typically twice the weight of the coffee), wait 30 to 45 seconds, then continue with the rest of the brew.

    Why bloom matters

    Roasted coffee contains carbon dioxide trapped during roasting. When hot water hits the grounds, that CO2 escapes vigorously. The visible foam and bubbling you see during the bloom is gas leaving the coffee. If you skip the bloom and pour all the water at once, the escaping gas pushes water around the grounds rather than through them, creating uneven extraction.

    How to bloom properly

    Use a 1:2 ratio of water to coffee for the bloom. With 18g of coffee, pour 36g of water. Pour in a slow circular motion, wetting all the grounds. Avoid pouring water down the sides of the filter where it can bypass the coffee bed.

    Then wait. Most brewers benefit from a 30-45 second bloom. Watch the surface: when the bubbling has mostly settled and the bed has stopped expanding, you can start your next pour.

    The bloom tells you about freshness

    Fresh coffee blooms vigorously, sometimes doubling in volume. Coffee that is one to four weeks past roast date will still bloom but more modestly. Coffee that barely blooms at all is stale; the CO2 has long since escaped, and you will likely brew a flat-tasting cup regardless of technique.

    If your coffee is not blooming much, consider that an early warning that the cup will be lifeless. The bloom is both a brewing step and a freshness indicator.

  • Pour-Over for Beginners: A Practical First-Brew Guide

    Pour-Over for Beginners: A Practical First-Brew Guide

    Pour-over coffee has a reputation for being fussy. It deserves about half of that reputation. The other half is the result of YouTube videos full of $400 kettles and frowning baristas talking about turbulence and slurry. You don’t need any of that to make a great cup. You need four things to be roughly right, and a willingness to brew the same coffee twice in a row to actually learn something.

    What you actually need

    The minimum viable pour-over kit:

    • A dripper. Hario V60 is the default and works fine. Kalita Wave is more forgiving for beginners. Origami is a personal favorite that’s harder to find. Any of them works.
    • Filters that match the dripper. Use the brand-name ones for now. Cheap generic filters often introduce paper taste.
    • A scale. Any kitchen scale that measures to one gram. The fancy coffee-specific ones are nice but not necessary at this stage.
    • A grinder. This is where it gets less optional. Pre-ground coffee from the bag will give you a worse cup than the same beans ground fresh, every time. A basic burr grinder ($60-150) makes more difference than any other piece of equipment.
    • A kettle. Doesn’t need to be gooseneck for your first 50 brews. Any kettle with a controllable pour will do. If you want to upgrade, a basic gooseneck is around $40.

    The four variables that actually matter

    You have ten or fifteen things you could fiddle with on a pour-over. Most of them don’t matter much for your first six months of brewing. Four of them matter a lot:

    1. Coffee-to-water ratio

    Start at 1:16. That means 1 gram of coffee for every 16 grams of water. For a typical single cup, that’s 18 grams of coffee to 288 grams of water. Round it: 18g and 290g. If your cup tastes weak, drop the ratio to 1:15. If it tastes too intense, push to 1:17. This is the first lever.

    2. Grind size

    Pour-over wants medium-coarse, roughly the texture of coarse sand. If your brew finishes too quickly (under 2:30 for a single cup), grind finer. If it takes forever (over 4:00), grind coarser. The right grind for your specific grinder takes a few rounds to find. Once you find it, write down the setting.

    3. Water temperature

    Around 96 degrees Celsius (205 Fahrenheit) is the safe zone. If your kettle is variable temperature, set it there and forget it. If your kettle just boils, let it sit off the heat for 30 seconds before you pour. This matters less than people think, but a temperature that’s way off will give you a sour or muddy cup.

    4. Total brew time

    Aim for 2:45 to 3:30 from the moment water first touches the grounds to the last drip falling into your cup. That window is wide enough to be forgiving. Outside it, you’ll taste the difference.

    A complete recipe for your first brew

    Use this as your default. Adjust later.

    1. Heat 350g of water (extra so you can rinse the filter).
    2. Place filter in dripper, rinse it with hot water, discard the rinse water. This removes paper taste and pre-warms the dripper.
    3. Grind 18g of coffee at medium-coarse.
    4. Add coffee to filter. Tap the dripper to level the bed.
    5. Place dripper on top of your cup, on the scale, tare to zero.
    6. Start a timer. Pour 50g of water in a slow circle, just enough to wet all the grounds. This is the bloom. Wait 30 seconds.
    7. From 0:30 to 1:15, pour up to 180g total. Use slow circles, avoid the filter walls.
    8. From 1:15 to 2:00, pour the remaining water up to 290g.
    9. Let it drip out. Total time should land around 3:00 to 3:30.
    10. Swirl the dripper gently before removing it.

    What to taste for

    Your first goal is just a cup that tastes good to you. Once you’ve gotten there, the next level is learning what’s going wrong when it doesn’t.

    • Sour and thin: Underextracted. Grind finer, slow down the pour, or use slightly hotter water.
    • Bitter and dry-feeling: Overextracted. Grind coarser, pour faster, or drop the water temperature a few degrees.
    • Muddy and flat: Stale beans, or a grinder that’s producing too many fines. Try a fresher bag.
    • Thin in the body: Ratio is too weak. Try 1:15.

    The single biggest beginner mistake

    Changing two things at once. If you have a bad cup and you adjust the grind and the temperature and the ratio all at the same time, you’ve learned nothing. The slow path is the fast path: change one variable, brew the same coffee again, taste the difference. Three or four iterations and you’ll have a recipe you can repeat reliably.

    Pour-over is genuinely easy once you’ve made it ten times. The first three brews are the hardest because nothing has a baseline yet. Push through, keep notes, and within a week of daily brewing you’ll be making coffee at home that’s better than what most cafes serve.