What exactly is missing for you?
“Thin” can mean low concentration, weak aroma or a light mouthfeel. These are different questions. A light, fruity coffee may feel lighter than a darker blend even when both are prepared appropriately. First clarify what is missing. The answer determines whether drink weight, brewing or bean style is the most useful place to start.
First note whether the cup is pleasant but too light, or also tastes sharp and hollow. This distinction determines whether you should first check drink yield or the brewing process.
Check the quantities
Weigh the actual dose in the basket and the finished beverage. A large mug can make a small espresso look lost. Conversely, a high beverage quantity from little coffee can greatly reduce concentration. Crema height is not a reliable measure of this.
As a guide, with a suitable basket you can consider 18 grams of coffee and 36 grams of drink. This is not a compulsory recipe. It simply provides a clear reference point from which you can deliberately deviate.
Proceed step by step
- Check basket size, dose and beverage yield. Correct accidental quantity variations first.
- If the coffee is rounded but too light, try stopping slightly earlier with the same dose and grind.
- If it flows very quickly and also tastes sharp, try one small step finer instead, keeping the same target yield.
- Repeat the better version before changing further variables.
Do not simply pack in more grounds
A higher dose changes bed depth and resistance and can exceed the basket's capacity. If you generally need larger or more intense servings, plan a suitable basket and a complete new recipe. A basket filled to the brim is no reliable shortcut.
Check evenness
If water takes preferred paths through the puck, the result can taste empty despite a sufficient dose. Check the dry basket, distribution and level tamp. A finer grind is not automatically the right answer to uneven preparation.
Assess beans and freshness
A bag that has been open a long time and stored poorly can lose aromatic impact. More grounds may then increase intensity without necessarily restoring the earlier variety. When you can, compare it with properly stored beans and record the conditions.
Judge differently for cappuccino
An espresso that is delicate and balanced on its own can seem muted in lots of milk. First check the espresso-to-milk ratio. You do not need to push the shot to unpleasant extremes to compensate for an oversized milk portion. A smaller drink can bring out the coffee more clearly.
When the setting works
Once the espresso is sufficiently present, balanced and repeatable, stop searching. Body is a preference, not a universal quality score. A clear, lighter cup can be just as good as a heavy, syrupy one.