3 Things That Affect the Flavour of Coffee Before It's Roasted

When most people think about coffee flavour, they think about roasting.

Light roast.
Medium roast.
Dark roast.

But long before coffee arrives at a roastery, many of the flavours you'll eventually taste have already been determined.

In fact, some of the biggest influences on flavour happen before the coffee is ever roasted.

If you've ever wondered why one coffee tastes like berries and another tastes like chocolate, it usually comes down to three key factors:

• Where the coffee was grown

• How it was processed

• What varietal it is

Understanding these factors is a core part of developing your palate as a barista. If you want to go deeper, our Barista Level 1 Bundle covers coffee origin, sensory skills and more in a structured hands-on format.

Let's break them down.

1. Where the Coffee Is Grown

Coffee is an agricultural product.

Just like wine grapes grown in different regions produce different wines, coffee grown in different environments develops different flavour characteristics.

Factors such as:

• Altitude

• Temperature

• Rainfall

• Soil composition

all influence how coffee develops.

This is why coffees from different regions often have distinct flavour profiles.

For example:

Ethiopian coffees are often known for floral and fruit-forward flavours.

Brazilian coffees are commonly associated with chocolate, nuts and heavier body.

Colombian coffees often strike a balance between sweetness, fruit and body.

While these aren't hard rules, origin has a huge influence on what ends up in the cup.

2. How the Coffee Was Processed

Once coffee cherries are harvested, the fruit needs to be removed from the seed (which eventually becomes the coffee bean).

The method used to do this is called processing.

Processing can dramatically influence flavour.

Washed Process

The fruit is removed before drying.

This often produces coffees that are:

• Cleaner

• Brighter

• More transparent

Natural Process

The coffee dries with the fruit still attached.

This often creates flavours that are:

• Sweeter

• Fruitier

• More intense

Honey Process

A method that sits somewhere between washed and natural processing.

These coffees often show:

• Sweetness

• Body

• Complexity

without becoming overly fruit-forward.

Processing is one of the biggest flavour variables in specialty coffee.

3. What Varietal It Is

A varietal is essentially the coffee plant's genetics.

Just as there are different types of apples or grapes, there are many different coffee varietals.

Some common examples include:

• Bourbon

• Caturra

• Typica

• SL28

• Gesha

Each varietal has unique characteristics.

Some produce incredible sweetness.

Some produce intense florals.

Others are prized for body and structure.

The famous Gesha varietal, for example, is often celebrated for its delicate floral aromas and tea-like qualities.

Why This Matters

Understanding these three factors helps explain why coffee can taste so different from one bag to the next.

Before a roaster even begins their work, flavour has already been shaped by:

• The environment

• The processing method

• The plant genetics

Roasting is incredibly important.

But it's only one chapter in the coffee's story.

Many of the flavours we love in coffee have already been developing for months, or even years, before the beans ever reach a roastery.

If you want to understand coffee at this level — origin, processing, sensory analysis and extraction — our Barista Level 1 Bundle is the ideal next step. It's designed for those who want to move beyond the basics and develop a deeper understanding of specialty coffee.