Final answer:
A coarse grind refers to larger particles and a fine grind refers to smaller particles. A coarse grind can result in weaker flavor extraction, while a fine grind can lead to over-extraction and a bitter taste.
Step-by-step explanation:
In the context of grinding, a coarse grind refers to larger particles whereas a fine grind refers to smaller particles. When the grind is too coarse, it means that the particles are not small enough, resulting in a weaker flavor extraction and potentially a under-extracted drink.
On the other hand, a grind that is too fine means that the particles are too small, which can lead to over-extraction and a bitter taste in the final product.