The $30 Fix That Makes Every Cup Better

You're Guessing. That's Why It Tastes Different Every Morning.

Here's the thing nobody tells you when you start making coffee at home. The beans matter. The grinder matters. But the reason your Monday cup tastes great and your Tuesday cup tastes like hot brown water has nothing to do with either of those things.

It's because you're eyeballing your dose.

A heaped tablespoon of coffee could be 8g or 14g depending on the grind, the roast, how generous you felt that morning. That's nearly double the amount of coffee. Of course it tastes different every time.

The fix costs $30. It's a kitchen scale. And it's the single best upgrade you can make to your home coffee setup. Better than a new grinder. Better than a new machine. Better than fancier beans.

Why We Weigh Everything at the Roastery

At BOM, we weigh every single batch to the gram. Not roughly. Not close enough. To the gram.

Here's why. A 2g difference in your coffee dose changes how much gets extracted from the grounds by around 8-10%. That's not a subtle difference. That's the difference between a balanced cup and one that's either sour and weak or bitter and over-the-top.

When we dial in a new batch on the cupping table, we're working in half-gram increments. 18.5g versus 19g versus 19.5g. Each one tastes noticeably different. If we can taste it in a controlled environment with calibrated equipment, you can definitely taste it at home when you're scooping randomly with a tablespoon.

Every recipe we publish, every brew guide card we put on our site, every ratio we give our wholesale partners starts with a weight. Not a scoop. Not a tablespoon. Grams.

The Numbers That Actually Matter

Coffee ratios are simple maths. Once you know the weight, everything else falls into place.

Plunger / French Press

15g of coffee per 250ml of water.

Making two cups? That's 30g to 500ml. A full litre? 60g. Dead simple. If you're using a standard 3-cup plunger (about 350ml), that's 21g. Weigh it once and you'll never go back to guessing. Full method in our plunger recipe.

Espresso

18-20g in, depending on your basket and the blend.

We run 20g for People Every Day, 19.5g for No Sleep Till Brooklyn, 19g for Hyperdrive. The yield (what comes out) is usually 1.8x to 2x the dose. So 20g in, 40g out. That ratio is the whole game. Without a scale, you're just hoping. Our full espresso recipes are in the dial-in guide.

Pour-Over / V60 / Chemex

15g per 250ml. Same ratio as plunger, different grind.

A single pour-over is 15g to 250ml. Brewing a big Chemex for the family? 45g to 750ml. Weigh the coffee. Weigh the water as you pour. That's how you get the same cup every time.

The Tablespoon Myth

A "tablespoon" of coffee is meaningless. We've tested it.

One level tablespoon of our People Every Day (medium roast, medium grind) weighs about 7g. The same tablespoon of Hyperdrive (dark roast, same grind) weighs about 5.5g. Dark roasts are less dense because the roasting process expands the bean and burns off moisture. Same scoop. Completely different dose.

So when a recipe says "two tablespoons per cup," which tablespoons? Heaped or level? Which roast? Which grind size? It's a useless measurement for something that matters this much.

Grams don't lie. 15g is 15g whether it's a light single origin or a dark espresso blend.

What Scale Do You Actually Need?

Not an expensive one. Seriously.

A $30 kitchen scale from Kmart with 0.1g resolution does the job. That's the same precision we use for brew recipes. You need 0.1g, not 1g. A scale that only reads in whole grams can't tell the difference between 18g and 19g of espresso. That gap matters.

Look for these three things:

0.1g resolution. Non-negotiable. This is the only spec that matters.

A tare button. So you can zero out the weight of your portafilter or plunger and just measure the coffee. Every scale has this. Use it.

Enough capacity. At least 500g max so you can weigh a full plunger of water. Most kitchen scales go to 2kg or 3kg. That's plenty.

That's it. You don't need a timer built in. You don't need Bluetooth. You don't need a flow-rate sensor. You need something that reads to 0.1g and has a tare button.

What About Fancy Coffee Scales?

If you're the kind of person who gets into gear, there are dedicated coffee scales. The Timemore Black Mirror (around $80-100) is the sweet spot. Built-in timer, fast response, designed to fit under an espresso machine. The Acaia Pearl ($250+) is the one you see in specialty cafes. Gorgeous. Accurate to 0.1g. Connects to apps.

Are they better than a $30 kitchen scale? Marginally. The timer is convenient. The response speed is faster for espresso. The form factor is nicer under a portafilter.

Are they necessary? No. Not even close.

Start with the $30 scale. If you find yourself making coffee twice a day and wanting a built-in timer, upgrade later. But the accuracy difference between a $30 kitchen scale and a $250 Acaia is basically zero for home use.

The Real Upgrade Is the Habit

The scale itself isn't the magic. The habit of weighing is the magic.

Once you start weighing, you start noticing. 15g makes a cup you like. 13g makes it thin. 17g makes it too strong for your partner. Now you have a language for what you're doing. You can repeat what works and fix what doesn't.

That's what separates people who "can't figure out coffee" from people who make a great cup every single morning. It's not talent. It's not expensive equipment. It's 3 seconds on a $30 scale.

We see it constantly with our wholesale customers. The cafes that weigh every dose pull consistent shots all day. The ones that scoop and eyeball have good shots and bad shots and they can never figure out why. Same beans. Same machine. Completely different results.

Quick Start: Your First Weighed Cup

Tomorrow morning, try this.

1. Put your plunger or cup on the scale. Hit tare.

2. Add coffee until the scale reads 15g.

3. Add 250ml of water (that's 250g on the scale, since 1ml of water = 1g).

4. Brew however you normally do.

That's it. Taste the difference. Then do the same thing tomorrow. And the next day. Same cup. Every time. That's the point.

Good beans deserve a consistent dose.
Grab a bag of our signature blends. roasted in Perth, shipped fast. Weigh 15g per cup and taste what your coffee is actually supposed to taste like.