Why trust this guide?

We’re Jeremiah and Raja — The Coffee Twins, a UK speciality coffee brand with beans roasted in England. Our beans are stocked in five-star London hotels, and we trained in five-star hotel food and beverage before running our own coffee shop in Farringdon. Because we grind coffee to specific brewing methods every day, we know exactly what medium fine grind should look like. This guide explains what medium fine grind is, which brewing methods need it, and how to get it at home.

Table of contents

1. What is medium fine coffee grind?
2. What medium fine grind actually looks like
3. Which brewing methods need medium fine grind?
4. Why grind size matters this much
5. Where to buy medium fine ground coffee
6. Our best beans for medium fine brewing
7. How to achieve medium fine grind at home
8. Common mistakes with medium fine grind
9. FAQ

What Is Medium Fine Coffee Grind?

Medium fine coffee grind sits between filter grind (medium) and espresso grind (fine) on the grind size spectrum. The particle size is roughly 500-800 microns, so it’s finer than what you’d use for a cafetière or drip filter machine but coarser than what an espresso machine needs.

The grind size spectrum

To understand where medium fine sits, here’s the full grind spectrum from coarsest to finest:

Because medium fine is one specific point on this spectrum, getting it wrong — even by one step — dramatically affects taste.

What Medium Fine Grind Actually Looks Like

Descriptions like “table salt” help, but here’s a more practical way to identify medium fine grind:

Visual and tactile signs

• Texture: Similar to fine sand or table salt
• How it feels between fingers: Slightly gritty, not powdery
• Individual particles visible: Yes, but small
• Compared to filter grind: Slightly finer, less coarse
• Compared to espresso grind: Noticeably coarser, less powdery

The “pinch test”

Take a pinch of ground coffee between thumb and finger, then rub it lightly:

• Too coarse: You feel distinct grains, like sand at the beach
• Just right (medium fine): A fine, slightly gritty texture — like fine table salt
• Too fine: Powdery, sticks to your fingers, feels almost floury

The visual comparison

If you spread medium fine grounds on white paper, you should be able to see individual particles clearly. However, they’ll be quite small. Espresso grind looks almost like powder, while filter grind looks noticeably chunkier — you can pick out individual particles easily.

Which Brewing Methods Need Medium Fine Grind?

Medium fine isn’t for every brewing method. It’s designed for four brewing approaches where the grind needs to be finer than filter but coarser than espresso.

1. AeroPress (the classic medium fine method)

The AeroPress is probably why “medium fine” has become such a common search term. Since the standard AeroPress recipe uses a 2-minute steep and gentle press, medium fine grind is genuinely essential. If your grind is too coarse, coffee tastes weak and watery. But when it’s too fine, pressing becomes hard, coffee tastes bitter, and the paper filter clogs.

See our Best Coffee for AeroPress guide for the full brewing method.

2. Moka pot (stovetop espresso)

Moka pots technically use “fine” grind (like espresso), although many baristas prefer medium fine because it’s more forgiving. While it produces slightly weaker coffee than true fine grind, it also reduces the risk of bitter, over-extracted, or blocked-flow coffee that pure espresso grind can cause in moka pots.

Also see our Best Coffee for Moka Pot guide for detailed technique.

3. Siphon coffee (vacuum brewing)

Japanese-style siphon coffee makers use vacuum pressure to brew, and they need medium fine grind — finer than pour over, coarser than espresso. While this is a specialist method, it’s growing in popularity.

4. Some pour over methods

Certain pour over methods — particularly the Kalita Wave and some V60 recipes — call for medium fine rather than medium. However, it depends on the specific recipe and desired brew time.

Why Grind Size Matters This Much

Grind size controls extraction speed. Water extracts flavour compounds from coffee at a rate determined largely by how much surface area is exposed, so finer grinds create more surface area, which means faster extraction.

If your grind is too coarse

When water flows through too quickly, there’s not enough contact time with the coffee. As a result, you get weak, sour, thin coffee. You’ve under-extracted — pulled out the fast-extracting acids but not the sweet notes that come later.

Too fine a grind creates different problems

Now water can’t flow through properly. Because of the over-contact with coffee, the result is bitter, over-extracted coffee. You’ve pulled out too much, including the harsh, unpleasant compounds that only extract at the very end.

The sweet spot for balanced coffee

Here water flows through at the ideal rate, so contact time is perfect. The result is balanced, sweet, complex coffee that shows off the bean’s character. Getting grind right is genuinely more important than most home baristas realise.

Why medium fine specifically

Medium fine hits the sweet spot for brewing methods that use pressure (moka pot), immersion + pressure (AeroPress), or vacuum (siphon). These methods need enough surface area for full extraction, but not so much that water can’t flow properly.

Where to Buy Medium Fine Ground Coffee

Buying medium fine ground coffee is trickier than other grind sizes because most speciality roasters offer standard options (whole bean, espresso, filter, cafetière) rather than specific medium-fine. However, here’s how to get it properly:

Option 1: Select “Filter” grind at checkout

For most home brewing, ordering “Filter” grind gets you close enough to medium fine. Although filter grind is slightly coarser than true medium fine, the difference is small enough that most brewing methods will still work well.

This is our recommended default option because it’s simple — no fuss, arrives ready to brew, and works for most home AeroPress and moka pot use.

Option 2: Add custom instructions in the notes field (our recommendation)

If you want exact medium fine grind, order from us and add a note in the “Order notes” field at checkout (located under the billing address). Just write: “Please grind medium-fine for AeroPress” or “Please grind medium-fine for moka pot”.

Then we’ll adjust the grinder setting specifically for your order — no extra charge, no hassle. This is one advantage of buying from a small speciality roaster rather than a supermarket brand. Because we’re small, we can actually customise for you.

Why supermarket coffee doesn’t offer medium fine

Supermarket ground coffee typically comes in one grind size (“filter” or “espresso”) because they produce thousands of bags at once. As a result, customisation isn’t possible at that scale. This is also why supermarket ground coffee is often stale — it sits pre-ground for months before you buy it.

The freshness factor

Whichever grind you choose, freshness matters dramatically. Since ground coffee loses 60% of its aromatic compounds within 15 minutes of grinding, timing is critical. This is why our beans are roasted in England and dispatched within 24 hours — you get ground coffee that arrives at your door within days of roasting, not months.

Also see our How Long Do Coffee Beans Last guide for full freshness details.

Our Best Beans for Medium Fine Brewing

Different beans suit different brewing methods that use medium fine grind. Here’s what we’d recommend from our range depending on your brewing style.

Our AeroPress top pick: Jojo (Ethiopian Limu single origin)

Jojo is our top pick for AeroPress specifically. Since light roast beans shine through the AeroPress paper filter, you get clean, complex flavour that darker roasts mask. The stone fruit and winy notes come through beautifully at medium fine grind.

Gentler AeroPress alternative: Parrot (Brazilian Cerrado single origin)

Parrot is a gentler alternative if Jojo’s fruity intensity isn’t your thing. Although it’s the same light roast, it delivers a rounder, nuttier flavour profile at medium fine grind.

Moka pot champion: Audley (dark roast blend)

Audley is designed for espresso and moka pot brewing. Because its dark roast character produces the traditional stovetop espresso taste — rich, chocolatey, satisfying — it’s a natural pick. When used at medium fine grind, it works brilliantly in moka pots without the bitterness that finer grind sometimes causes.

Versatile everyday choice: Bobo

Bobo works across every brewing method including AeroPress and moka pot. If you’re new to speciality coffee or want one bean that handles multiple medium fine brewing methods, Bobo is genuinely the safest choice.

How to Achieve Medium Fine Grind at Home

If you have a burr grinder at home, achieving exact medium fine grind is easier than buying pre-ground. Here’s how to dial it in.

Burr grinder vs blade grinder

Only burr grinders can achieve consistent medium fine grind. Blade grinders produce uneven grind sizes — a mixture of too fine and too coarse. So if you’re serious about brewing, invest in a burr grinder. AeroPress themselves recommend burr grinders for consistent results.

Grinder settings for medium fine (approximate)

Grinder settings vary dramatically between brands. However, here’s rough guidance:

• Baratza Encore: Setting 10-12
• Baratza Virtuoso+: Setting 12-16
• Sage Smart Grinder Pro: Setting 10-20 (from 60 total)
• Wilfa Svart: Setting 8-10
• Comandante MK3: 20-25 clicks
• 1zpresso J-Max: 180-240 clicks

Dialling in — the process

Start at the middle of these ranges, then brew a cup and taste:

• Too sour, too weak, watery? Grind finer (lower number on most grinders)
• Too bitter, harsh, over-extracted? Grind coarser (higher number)
• Balanced, sweet, complex? You’ve got it right — remember the setting

Adjust one setting at a time. If you make multiple changes at once, you won’t know which change caused the improvement or problem.

Grinder investment for medium fine brewing

If you’re brewing AeroPress or moka pot regularly, a decent grinder is worth every penny. Expect to spend £50-150 for a good entry burr grinder, or £200-400 for a serious one. According to the Specialty Coffee Association, grinder quality is consistently more important than machine quality for good coffee.

Common Mistakes with Medium Fine Grind

Even with the right grind size, a few common mistakes can ruin your coffee. Here’s what to watch out for.

Using a blade grinder

Blade grinders can’t achieve consistent medium fine. You’ll get an uneven mix of powder and chunks, so your coffee will be simultaneously over-extracted (from the fine particles) and under-extracted (from the coarse chunks). As a result, you get bitter AND weak at the same time. If this sounds familiar, get a burr grinder.

Guessing at grinder settings

“Medium fine” means different things on different grinders. Setting 5 on a Baratza is not the same as setting 5 on a Wilfa. So use the pinch test or brew test to verify actual grind size, not just what the number says.

Not adjusting for the bean

Different beans need slightly different grind sizes. Dark roasts (like Audley) tend to need slightly coarser grind than light roasts (like Jojo). When you switch beans, adjust accordingly.

Grinding too far in advance

Ground coffee loses 60% of aroma within 15 minutes. If you grind your entire bag on Sunday for the week, you’ll drink stale coffee by Wednesday. However, if possible, grind fresh each morning.

Never cleaning the grinder

Coffee oils build up in grinders, especially with dark roasts. Because old oils go rancid and taint every new grind, cleaning matters. Clean your grinder monthly (or more often if you use dark roasts like Audley).

Ignoring water temperature and brewing time

Perfect grind won’t save bad brewing. Medium fine grind for AeroPress typically works with 80°C water and 2-minute steep, while medium fine for moka pot works with medium heat and immediate removal when coffee first comes through. So grind is one variable among several.

Frequently Asked Questions

What is medium fine coffee grind?

Medium fine coffee grind sits between filter grind (medium) and espresso grind (fine) on the grind spectrum. It has the texture of table salt or fine sand, with particle size around 500-800 microns. This is the ideal grind for AeroPress, moka pot, siphon coffee, and some pour over methods.

Where can I buy medium fine ground coffee UK?

The Coffee Twins — a UK speciality coffee brand with beans roasted in England. Select “Filter” as the grind option at checkout (closest match to medium fine), or add “medium-fine grind please” in the notes field under billing address for exact medium fine. Then we adjust the grinder setting for your order.

What brewing methods use medium fine grind?

Four main brewing methods use medium fine grind: AeroPress (the classic use), moka pot / stovetop espresso, siphon coffee, and some pour over methods (Kalita Wave, certain V60 recipes). Each of these needs finer grind than filter but coarser than espresso.

Is medium fine the same as filter grind?

Very close but not identical. Medium fine is slightly finer than typical filter grind (medium). Filter is roughly the texture of granulated sugar; medium fine is like table salt. For most home brewing, filter grind works as a substitute for medium fine — the difference is small enough not to significantly affect taste.

Can I use a blade grinder for medium fine?

Not effectively. Blade grinders produce inconsistent grind — a mixture of powder and chunks. As a result, coffee ends up simultaneously over-extracted and under-extracted. For proper medium fine grind, use a burr grinder (£50+ for entry level, £200+ for serious brewing).

What happens if my grind is too fine for AeroPress?

Two problems occur. First, pressing becomes very hard because water can’t flow through easily. Second, coffee tastes bitter and over-extracted because water has too much contact time with the very fine particles. If your AeroPress is hard to press, grind coarser.

What happens if my grind is too coarse for moka pot?

Water rushes through too quickly, producing weak, sour, watery coffee. Sometimes the moka pot won’t even build enough pressure to brew properly. If your moka pot coffee tastes weak or thin, grind finer.

How do I know if my grind size is right?

Taste is the ultimate test. Balanced, sweet coffee means the right grind size. When it’s sour or weak, that’s too coarse (grind finer). If it’s bitter or harsh, that’s too fine (grind coarser). The pinch test also helps: rub grounds between fingers — medium fine feels like fine sand, slightly gritty, not powdery.

Should I buy pre-ground medium fine or grind at home?

If you own a burr grinder, always grind fresh at home because ground coffee loses 60% of aroma within 15 minutes. However, if you don’t have a grinder, buy from a speciality roaster who grinds to order (like us) rather than supermarket pre-ground coffee that has been sitting for months.

Which of your beans works best at medium fine grind?

It depends on brewing method. For AeroPress, try Jojo (Ethiopian light roast) or Parrot (Brazilian light roast). Moka pot users should choose Audley (dark roast) or Bobo (medium roast). If you want versatile everyday medium fine brewing, Bobo works across all methods.

Summary

Medium fine coffee grind sits between filter and espresso grinds — roughly the texture of table salt or fine sand. It’s specifically designed for AeroPress, moka pot, siphon coffee, and some pour over methods.

To buy medium fine ground coffee from us:

• Standard option: Select “Filter” as your grind at checkout — closest match, works well for most home brewing
• Exact medium fine: Add “medium-fine grind please” in the notes field under billing address — we adjust the grinder setting for your order

Our recommended beans for medium fine brewing:

• AeroPress: Jojo (Ethiopian light roast) or Parrot (Brazilian light roast)
• Moka pot: Audley (dark roast) or Bobo (medium roast)
• Versatile: Bobo works across all methods

All beans are roasted in England and dispatched within 24 hours. Free UK shipping over £30 — use NEW10 for 10% off your first order.

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