Salted peanuts can make a stern red wine feel more forgiving, but the softer sip comes with a change in flavor. Salt can suppress bitterness, while the nuts add fat and protein to the mouth. Neither ingredient removes every tannin from the glass. The effect is perceptual as well as physical.The wine is not actually becoming less tannic. Tannins, polyphenols extracted largely from grape skins and s...More