View wine by holding the glass up to a white background in a well-lighted room. Use the rim of a tablecloth or even your white shirt's sleeve. Notice if the wine is clear and brilliant or cloudy and dull. Notice the depth of color. Observe the rim.
White wines vary from clear, through light green and all shades of yellow, to deep golden brown.
They naturally gain color as they age. Red wines range from red, ruby to purple, garnet and brick. As they age, they lose color and begin to brown. If it falls down in sheets, it has less body. Swirl Swirling wine in the glass exposes it to a larger surface area.