WHY DO SOME INDIAN BEERS TASTE BAD????
Why do some Indian Beers taste bad?
The answer is some organic compound which behaves like Glycerin. This is the reason why there is a bitter aftertaste. Yes, Glycerin exists in the alcoholic state as Glycerol. Due to its higher molecular weight and inductive effect of the Hydrogen atoms, Glycerol is less soluble than Ethanol in water. Glycerin is added to beer as a preservative. As you know Indian climate is close to being ideal for beer storage. But all major sources of information like Wikipedia deny this fact. They also say that pure glycerine is sweet in taste. And that Glycerine is a major constituent of Bio Diesel which is gonna run the vehicles in the future.
So basically it is gonna run both man and machine alike. :)
Step By Step: Removal of Glycerin from Beer
Removing-Glycerine
Get a Glass/tumbler of water.
Open the bottle of beer slowly so as to create less turbulence.
Cover the mouth of the beer with your thumb and slowly turn it upside down with mouth inside the water. This is the trickiest part, ensure you do not shake the bottle and cause the dissolved Carbon Dioxide to effervesce. The reason will be clear below.
As soon as the bottle is upside down you will see thick yellow colored liquid coming out. Which I believe is the organic compound mixed with the colouring agents in the beer.
Keep it there for some time. Maybe a min or two. I kept it for over 5 mins. Hoping to drain out the stuff completely losing some beer in the process.
Put it back and enjoy the amazing taste of what is actually Beer. Yes my friend that is how Beer tastes like. If it doesn't taste good, you might have done something seriously wrong.
Get ready for some geek funda. The science (or at least my hypothesis) behind this method.
When you put a bottle upside down, the atmospheric pressure is pushing the water in the tumbler, the low pressure created inside the top of the bottle is causing the liquid not to fall down into the tumbler. So at equilibrium, the liquid inside the beer + water starts to settle down based on its density. Glycerine(or whatever Organic compound being denser than water settles down into the glass of water, Water from the tumbler will go into the beer bottle(but not much, if you don't shake the bottle). If the Carbon Dioxide had started effervescing, the gas content inside the beer bottle would have started increasing, this would have caused the beer to flow into the glass due to increasing air pressure.
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