Guide to Making Coffee Flour

Quick answer

• Coffee flour is made from dried, roasted coffee cherries, not the beans.
• It’s a sustainable way to use up byproducts of coffee production.
• It adds a unique, fruity, and slightly bitter flavor to baked goods and smoothies.
• You can buy it pre-made or, if you have access to the right resources, attempt to make it yourself.
• It’s a gluten-free flour alternative.
• Use it in moderation; it’s potent.

Who this is for

• Home bakers looking for unique ingredients.
• Eco-conscious consumers interested in sustainable food options.
• Coffee enthusiasts eager to explore coffee beyond the brew.

What to check first

This guide is about making coffee flour, which is a bit different than brewing coffee. If you’re trying to improve your brewed coffee and came here by mistake, check these things first:

Brewer type and filter type

Your coffee maker, whether it’s a drip machine, pour-over, French press, or espresso maker, dictates a lot. The filter, too – paper, metal, or cloth – impacts the final cup. A clogged filter or the wrong one for your brew method can mess things up.

Water quality and temperature

Good coffee starts with good water. If your tap water tastes funky, your coffee will too. Aim for clean, filtered water. Temperature is also key. Too cool, and you won’t extract enough flavor. Too hot, and you’ll scorch the grounds. Most brewers aim for 195-205°F.

Grind size and coffee freshness

The grind size needs to match your brewing method. Coarse for French press, medium for drip, fine for espresso. Stale beans are a flavor killer. Coffee is best used within a few weeks of roasting.

Coffee-to-water ratio

This is how much coffee you use for a given amount of water. A common starting point is 1:15 to 1:18 (grams of coffee to grams of water). Too little coffee, and it’s weak. Too much, and it’s bitter.

Cleanliness/descale status

A dirty brewer is a recipe for bad coffee. Coffee oils build up over time. Descale your machine regularly according to the manufacturer’s instructions. A clean brewer makes a clean cup.

Step-by-step (brew workflow)

Okay, let’s get back to the main event: coffee flour. Making it from scratch is not something you can typically do at home unless you’re deep in the coffee production world. It involves processing the coffee cherry, not the bean.

Here’s a general workflow for how coffee flour is produced (again, this is industrial scale, not your kitchen):

1. Harvest Coffee Cherries: Select ripe, red coffee cherries.

• What “good” looks like: Uniformly ripe cherries.
• Common mistake: Harvesting unripe or overripe cherries. This leads to inconsistent flavor and drying issues. Avoid this by careful selection.

2. Wash and Pulp Cherries: Remove the outer skin and pulp. This can be done mechanically or through fermentation.

• What “good” looks like: Clean fruit pulp removed, leaving the parchment-covered bean.
• Common mistake: Incomplete pulping or over-fermentation. This can introduce off-flavors. Ensure proper washing and timing.

3. Dry the Parchment Coffee: Spread the pulped cherries thinly on drying beds or patios, or use mechanical dryers.

• What “good” looks like: Even drying, reaching about 10-12% moisture content. The parchment should feel dry and brittle.
• Common mistake: Uneven drying or drying too quickly/slowly. This can lead to mold or affect quality. Proper airflow and turning are key.

4. Husk the Parchment Coffee: Once dried, remove the parchment layer to expose the green coffee bean.

• What “good” looks like: Clean green beans with parchment removed.
• Common mistake: Damaging the beans during husking. This can affect appearance and subsequent processing. Gentle machinery is important.

5. Roast the Green Coffee Beans: This is where things get tricky for flour. Traditional roasting is for brewing. For flour, the cherries (or parts of them) are processed differently. Some methods might involve drying the whole cherry, then roasting that. Other methods might use specific parts of the fruit after initial processing.

• What “good” looks like: The specific roasting profile depends on the desired flavor of the final flour. It needs to be consistent.
• Common mistake: Over-roasting or under-roasting. This directly impacts the flavor profile. This step is highly specialized for flour production.

6. Grind the Roasted Material: The dried, roasted coffee cherry material is ground into a fine flour.

• What “good” looks like: A fine, consistent powder.
• Common mistake: Grinding too coarsely or too finely. This affects texture in recipes. Specialized milling equipment is used.

7. Sieve and Package: The flour is sifted to ensure uniformity and then packaged.

• What “good” looks like: A smooth, consistent flour free of lumps or debris.
• Common mistake: Inadequate sieving. This can lead to inconsistent texture in baked goods.

Personal Aside: Man, I always thought coffee flour was made from grounds. Nope. It’s the fruit! Mind blown. Makes sense, though, if you think about it.

Common mistakes (and what happens if you ignore them)

This table focuses on mistakes made if you were trying to produce coffee flour yourself or misunderstanding what it is.

Mistake	What it causes	Fix
Using dried coffee grounds	Bitter, gritty product; not true coffee flour; won’t behave like flour.	Use actual dried coffee <em>cherries</em> or pulp, not spent grounds.
Incomplete drying of cherries	Mold growth, spoilage, off-flavors, potential mycotoxins.	Ensure cherries are dried to a consistent low moisture content (around 10-12%).
Uneven drying	Some parts moldy, some parts too dry; inconsistent flavor and texture.	Spread cherries thinly, turn them regularly, ensure good airflow.
Using unripe or overripe cherries	Off-flavors, poor texture, inconsistent results in final flour.	Harvest only ripe, red cherries.
Incorrect roasting temperature/time	Burnt flavor, loss of desirable fruity notes, too bitter or too bland.	Follow specific roasting profiles designed for coffee flour production. This is specialized.
Grinding too coarsely	Gritty texture in baked goods, poor incorporation into batters.	Use industrial milling equipment for a fine, consistent powder.
Grinding too finely (like talc)	Can make baked goods dense or gummy, difficult to work with.	Achieve a fine, but not excessively fine, flour consistency.
Poor hygiene during processing	Contamination, spoilage, off-flavors, potential health risks.	Maintain strict sanitation practices throughout the entire process.
Improper storage (moisture exposure)	Clumping, spoilage, loss of freshness and flavor.	Store in airtight containers in a cool, dry place.
Not understanding the flavor profile	Overuse in recipes, leading to overpowering bitterness or strange flavors.	Start with small amounts (e.g., 1-2 tablespoons per cup of regular flour) and adjust.

Decision rules (simple if/then)

These are for when you’re using coffee flour.

• If you want a subtle coffee note and fruity undertones, then add 1-2 tablespoons of coffee flour per cup of regular flour in a recipe, because it’s potent.
• If your recipe is delicate (like macarons), then skip coffee flour for now, because its strong flavor and texture can easily overpower it.
• If you’re making pancakes or muffins, then coffee flour is a great addition, because its texture and flavor complement these well.
• If you’re new to coffee flour, then start with a recipe specifically designed for it, because it takes guesswork out of ratios.
• If you notice a bitter taste in your baked goods, then you’ve likely used too much coffee flour, because it contributes a natural bitterness.
• If you want to add a boost to your smoothie, then add 1 teaspoon of coffee flour, because it blends well and adds nutrients.
• If you’re making a chocolate-based dessert, then coffee flour can enhance the chocolate flavor, because it’s a classic pairing.
• If your recipe calls for a lot of leavening (like in a cake), then be mindful of how coffee flour might affect the structure, because it’s a denser flour.
• If you’re unsure about the roast profile of your coffee flour, then err on the side of caution with quantity, because different roasts have different flavor intensities.
• If you have a sensitive stomach, then try a very small amount first, because the acidity and compounds in coffee flour might affect you.

FAQ

What exactly is coffee flour?

Coffee flour is made from the dried, roasted skin and pulp of the coffee cherry, not the coffee bean itself. It’s a byproduct of coffee processing that’s transformed into a nutrient-rich flour.

Can I make coffee flour at home from coffee grounds?

No, you cannot make true coffee flour from spent coffee grounds. Coffee flour is derived from the fruit of the coffee plant, which is processed separately from the bean you use for brewing.

What does coffee flour taste like?

It has a unique flavor profile that’s often described as fruity, slightly tart, and subtly bitter, with earthy undertones. The exact taste depends on the coffee varietal and how it was processed and roasted.

Is coffee flour healthy?

Yes, coffee flour is a good source of fiber, protein, and antioxidants. It’s also naturally gluten-free, making it a suitable option for those with celiac disease or gluten sensitivities.

How do I use coffee flour in baking?

You can substitute a portion of regular flour with coffee flour, typically starting with 1-2 tablespoons per cup of flour. It’s great in brownies, cookies, muffins, and pancakes, often complementing chocolate or fruit flavors.

How should I store coffee flour?

Store coffee flour in an airtight container in a cool, dry place, similar to how you’d store regular flour or ground coffee. This helps maintain its freshness and prevent moisture absorption.

Can I use coffee flour in drinks?

Absolutely! A teaspoon or two can add a unique flavor dimension to smoothies, protein shakes, or even hot chocolate. Just be mindful of the potent taste.

Will coffee flour make my baked goods taste strongly of coffee?

It depends on the amount used. While it has a coffee-like essence, it’s more complex than just brewed coffee flavor. Use it sparingly at first to get a feel for its intensity.

What this page does NOT cover (and where to go next)

• Detailed instructions for industrial coffee cherry processing.
• Specific roasting profiles for different coffee flour flavor outcomes.
• Advanced gluten-free baking techniques involving coffee flour.
• Nutritional breakdowns of specific coffee flour brands.
• Recipes for making your own coffee-based beverages from scratch.