How to Brew Better Coffee When You Don't Have a Scale

September 12, 2026

How to Brew Better Coffee When You Don't Have a Scale

Most brewing guides open with "use 22 grams of coffee and 360 grams of water." That's good advice. It's also useless advice if you don't own a scale, and a lot of people reading brewing guides don't own a scale.

This post is the version for people who don't have a scale. It's also the version for people who do have a scale but don't want to drag it out for a single cup on a Tuesday morning. The short version: you can get within about 10% of the "right" ratio using nothing but a tablespoon and a measuring cup, and the cup will taste great. The long version is below.

We brewed this with our Colombia Single Origin — the medium roast is forgiving enough to make the eyeballed ratios work.

For the recipe-style post that uses a scale, our how to brew pour over post has the gram-by-gram walkthrough. This one is its cousin — same logic, different tools.

Why scales matter (and why you can get away without one)

Coffee brewing is a ratio problem. The Specialty Coffee Association's "Golden Cup" standard is roughly 1 to 18 — 1 gram of coffee to 18 grams of water. That's 22 grams of coffee for a 10-ounce cup (which is about 300 grams of water, allowing for retention in the grounds). Hit that ratio, get the grind right, get the water temperature right, and you'll make a good cup.

If you're off the ratio by 10% — say 20 grams of coffee instead of 22, or 380 grams of water instead of 360 — the cup is still good. The difference between a 20-gram cup and a 22-gram cup is not a cup you can tell apart in a blind tasting.

If you're off the ratio by 50% — say 30 grams of coffee and 200 grams of water — the cup is undrinkable. That's a 1 to 7 ratio. It'll taste like jet fuel.

So the question is: how accurate do you actually need to be?

Within 10% of the ratio: indistinguishable from "perfect."
Within 20% of the ratio: a noticeable difference, but the cup is still good.
Beyond 30% off: the cup is too strong or too weak to enjoy.

That means a tablespoon-based method, which gets you within about 10 to 15% of the target, is fine for everyday brewing. You're not making a competition cup. You're making breakfast.

The tablespoon-to-water method

Here's the simplest version. It works for pour-over, French press, drip machine, and cowboy coffee.

For pour-over (single 10-oz cup):

2 level tablespoons of coffee
1.25 cups of water (10 fluid ounces)
Grind: medium-fine
Brew as you normally would

For French press (4 cups / 32 oz):

8 level tablespoons of coffee (a half-cup, roughly)
4 cups of water (32 fluid ounces)
Grind: coarse
Steep 4 minutes

For drip machine (standard 10-cup batch):

12 to 14 level tablespoons of coffee
10 cups of water
Grind: medium
Brew as you normally would

For cowboy coffee (2 cups):

3 level tablespoons of coffee
2 cups of water
Grind: coarse if you have it

The math behind it: one level tablespoon of ground coffee weighs roughly 5 to 7 grams, depending on the grind. Two tablespoons is about 11 to 14 grams. For a 10-ounce cup (300 grams of water), that puts you in the 1:21 to 1:27 range. Slightly weaker than the 1:18 golden ratio, but well within the 20% tolerance. The cup will taste balanced and clean.

If you want a stronger cup, use 2.5 tablespoons instead of 2. If you want a weaker cup, use 1.5. That's the whole tuning knob.

What kind of tablespoon matters

There are three different "tablespoons" in most American kitchens, and they're not the same.

A measuring tablespoon (the kind that comes with a measuring cup set): exactly 15 milliliters. This is what you want.
A flatware tablespoon (the kind you eat cereal with): 10 to 12 milliliters, depending on the pattern. Too small.
A "heaping" or "rounded" tablespoon: undefined. Could be 18 to 25 milliliters. Inconsistent.

If you only have flatware tablespoons, you'll need slightly more — roughly 2.5 cereal spoons per "real" tablespoon. If you have measuring spoons, you're set.

The level-versus-heaped distinction is also important. "Level" means the coffee is flat across the top of the spoon, with no mound above the rim. "Heaped" or "rounded" means there's a dome of coffee sitting on top of the spoon. Use level unless the recipe specifies otherwise.

For the broader question of how to read a coffee bag's brew ratio (which is sometimes given in grams, sometimes in tablespoons), our how to read a coffee label post has the practical walkthrough.

What this method can't do

There are three things a tablespoon method genuinely can't replicate, and it's worth knowing what they are so you don't expect more from the method than it can deliver.

It can't help you dial in a new coffee. When you're trying a new bag for the first time and you want to find the ratio that works best for that specific bean, a tablespoon isn't accurate enough. The difference between 1:18 and 1:16 is real, and a tablespoon is too coarse an instrument to navigate it. Use a scale for first-cup dialing, then switch to tablespoons once you've found the ratio you like.

It can't replicate consistency across very different coffees. A bright Kenyan and a chocolatey Brazil want different ratios — the Kenya often wants a slightly stronger brew (1:16) to push the fruit, while the Brazil often wants a slightly weaker brew (1:19) to keep the chocolate clean. A tablespoon-based method blurs both to roughly the same ratio. That's fine for everyday drinking. It's not fine for cupping or for the "I want to taste this specific coffee" use case.

It can't help with espresso. Espresso dosing is measured in grams to a much tighter tolerance than brewed coffee — typically within 0.5 grams on a 18-gram dose. Tablespoons aren't accurate enough. If you're pulling espresso shots, you need a scale.

For everything else — pour-over, French press, drip, cowboy, cold brew — the tablespoon method is good enough.

A "this is what good looks like" checklist

If you're using a tablespoon-based method and you want to know if the cup is right, taste it and check against this list:

Too strong? Coffee tastes bitter, sharp, almost burnt. Add 0.25 to 0.5 tablespoons less per cup next time.
Too weak? Coffee tastes thin, watery, sour. Add 0.25 to 0.5 tablespoons more per cup next time.
Just right? Coffee tastes balanced — you can taste the origin character (chocolate, fruit, nuts, etc.), the cup finishes clean, and you don't feel like you need to add a lot of sugar or milk to enjoy it.
Astringent or metallic? Probably the water, not the ratio. See our water quality matters post for the fix.

The "just right" zone is wider than you think. Most people are within the right zone already and don't realize it.

The "no equipment at all" version

If you don't have a tablespoon either — say you're in a vacation rental, an Airbnb, a hotel room, or a friend's house — you can use these substitutes:

A coffee mug. A standard 12-oz ceramic mug holds about 8 level tablespoons of ground coffee. So a half-mug of coffee for a 4-cup pot is about right.
A soda can. A 12-oz aluminum soda can is 355 milliliters. Use it as your water measure.
Your cupped palm. Roughly 2 level tablespoons fit in a typical adult palm. Not precise, but good enough.

These are obviously rougher than the tablespoon method. They get you within about 25% of the target ratio. The cup will still be drinkable. It just won't be competition-grade.

For the version of this post that addresses brewing without any equipment at all (kettle, pot, mug), our how to brew coffee at home without a drip machine post has the three-method walkthrough, including cowboy coffee which uses literally nothing.

When to actually buy a scale

If you brew coffee at home more than three times a week, a $15 to $25 kitchen scale pays for itself in better cups within a month. We use a $20 Escali scale at the roastery for everyday brewing, and a $40 Acaia for pour-over development work. Most home brewers don't need the Acaia.

The honest truth is that a scale is one of the few brewing tools that makes a real, noticeable difference in cup quality. A $15 scale will improve your coffee more than a $150 burr grinder, at least at the entry level. If you're going to buy one tool, buy the scale.

But if you're not ready to buy a scale, the tablespoon method is genuinely fine. Don't let "you need a scale" gatekeep you out of making better coffee at home.

The honest part

The best cup of coffee is the one you actually make and drink. Most of the brewing advice online is written for people who already own a scale, a burr grinder, a gooseneck kettle, and a $40 pour-over dripper. If you don't own any of that, the advice often reads as "you can't make good coffee without buying all of this stuff first."

That's wrong. You can make good coffee with a tablespoon, a mug, and a kettle. The differences between that cup and a cup made with a scale are real but small — measurable in a lab, hard to notice at breakfast.

If a scale eventually shows up in your kitchen, use it. Until then, the tablespoon method is the right tool for the job.

For the broader case for not over-gearing your morning, our why we don't drink coffee past noon post has the same philosophy applied to the time-of-day question. For the practical question of what to do when you don't have a grinder either, our what to do without a grinder post covers that.

Brew slow. Sip slow. ☕