If you have ever dialled in a shot at home and wondered why your coffee tastes burnt or bitter, you are not alone.
It is one of the most common frustrations for home baristas. The good news is that the cause is usually easy to correct.
Bitterness usually comes down to extraction
In most cases, bitterness is not caused by the coffee beans themselves. It is a result of how the coffee is brewed.
Extraction refers to how water pulls flavour compounds out of ground coffee. Coffee contains a wide range of compounds that dissolve at different speeds. Some bring sweetness and body, while others contribute bitterness.
When too much is extracted, the bitter compounds begin to dominate the cup.
Grind size is the first thing to check
One of the most common causes of burnt or bitter coffee is grind size.
If the grind is too fine, water moves slowly through the coffee puck and extracts too aggressively. This often results in longer shot times and a harsher, more bitter flavour.
Adjusting the grind slightly coarser can help reduce over extraction and bring the coffee back into balance.
Water temperature can push flavour too far
Water temperature also plays a role in how coffee extracts.
If the water is too hot, it increases the speed of extraction and can push the flavour toward bitterness, especially if the grind is already fine or the shot is running long.
Small adjustments here can help soften the overall result.
Fresh coffee behaves differently
Freshness has a direct impact on how coffee extracts.
Recently roasted beans contain gases and oils that help espresso flow more evenly through the puck. This leads to a more stable extraction and a more balanced flavour.
As coffee ages, these characteristics fade, making it harder to achieve consistent results.
Coffee designed for consistent extraction
At Kite Coffee Roasters in Orange NSW, roast profiles are developed so the coffee behaves predictably in home espresso machines.
The focus is not just on flavour, but on consistency, helping you dial in shots with less guesswork.
Simple adjustments that improve your espresso
If your coffee has been tasting bitter, start with small changes.
Adjust your grind slightly coarser and consider pulling a shorter shot. These two changes alone can make a noticeable difference.
Start with coffee that extracts cleanly
One of the easiest ways to improve espresso at home is to remove variables where possible.
Freshly roasted beans designed for espresso will respond more consistently to adjustments and produce a more balanced cup.
Explore the Kite Coffee range and find a blend that makes dialling in your home setup easier.
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