| Size | Onions typically range in size from about 1 inch in diameter to 4 inches in diameter |
| Shape | Round or oval shape with a flattened top and bottom |
| Skin | Thin, papery, and often a yellow or brownish color |
| Layers | Onions have several layers, usually ranging from 3 to 12, depending on the size |
| Texture | Firm and slightly rubbery, with a moist interior |
| Flavor | Pungent and slightly sweet, with a sharp, tangy taste |
| Aroma | Strong and distinctive, often causing eyes to water when cut |
| Color | The interior of the onion is usually white, yellow, or red, depending on the variety |
