When we talk about the taste of wine or coffee, most of what we notice actually comes from smell. The tongue detects a small number of basic tastes: sweetness, sourness, bitterness, saltiness and savouriness, often called umami. Everything else, from blackcurrant and vanilla to chocolate and citrus, is detected by the nose, both when we sniff and when aromas travel up from the back of the mouth as we swallow.
Try holding your nose while sipping coffee. Much of the flavour disappears, leaving bitterness and perhaps some sourness. Release your nose and the aromas return. This simple experiment shows why tasters spend so much time smelling before they sip.
Texture matters too. In wine, tannins create a drying, gripping feeling on the gums and tongue, and alcohol can feel warming. In coffee, body describes how light or heavy the drink feels, from tea-like to syrupy. Temperature also changes perception: sweetness and acidity become easier to notice as drinks cool slightly.
Everyone's senses are a little different. Genetics, experience, memory and even mood influence what we perceive. There is no single correct answer in tasting, only careful observation and honest description.
Common mistake to avoid
A common mistake is assuming that experienced tasters have special natural talent. In reality, tasting is mostly practice: paying attention, comparing samples and building a vocabulary. Anyone can improve with regular, focused tasting.
Try this
Taste a cup of coffee or a glass of juice twice, once while holding your nose and once normally. Write down what changes.
Key takeaways
- Most flavour comes from smell
- The tongue detects basic tastes such as sweet and sour
- Texture and temperature shape perception