Astringency is characterized by constriction, drawing together, or drying.

Bitter is disagreeable and stimulates rejection. It is a strong taste often associated with black coffee, dark chocolate, and most salad greens.

Group: Liver-Gallbladder

Pungency is characterized by irritation, or sharp, spicy foods that irritate the mouth such as black pepper.

Group: Heart-Circulation-Blood

Salty refers to anything with salt, or high mineral content.

Group: Kidney-Bladder-Urinary

Sour refers to anything fermented or acidic.

Sweet refers to anything builds tissue, including macronutrients such as carbohydrates, proteins and fats.