Does the foam head affect the taste of cola? I was reading the other day about the importance of the head when pouring beer, and I wondered if there are any similar considerations when pouring cola's? I'm a huge fan of good Coke, and I'm just wondering if I can improve an already great tasting drink!
More head = less carbonation, which will change the mouth-feel of the drink, albeit largely imperceptibly for most people (myself included). Less carbonation will also change the actual perception of flavour; it will taste sweeter, mostly.