# Tag Info

### Why is the recipe of Coca Cola still a secret?

There are different angles this question can be answered: Chemical point of view: A full analysis of a totally unknown mixture is painful and extremely costly. It is always helpful to know how many ...
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### Can we fill potato chips bags with a gas other than nitrogen?

As Nilay Ghosh said, nitrogen is cheap. Very cheap. Neon is expensive. Argon is cheaper than neon, but considerably more expensive than nitrogen. Helium is also expensive and needs to be used wisely, ...
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### Why does pasta really boil over?

The starch forms a loosely bonded network that traps water vapor and air into a foamy mass, which expands rapidly as it heats up. Starch is made of glucose polymers (amylopectin is one of them, shown ...
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### What causes the "rotting fish smell"?

The "fishy" odor that you're familiar with is brought about by a whole bunch of compounds, and not any single one. Then again, if we were to narrow this down a bit, we could say that simple nitrogen ...
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### Can we fill potato chips bags with a gas other than nitrogen?

Not mentioned yet: nitrogen is entirely non-toxic, environmentally friendly, does not contribute to global warming or ozone depletion. In very good approximation, nitrogen is just air with the oxygen ...
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### Why does whipped cream use nitrous oxide instead of nitrogen gas?

There are two ways to efficiently make an aerosol product: Use a gas that liquifies under the pressure inside the can. For example, butane lighters. Nitrogen is one of the "fixed gases", meaning it's ...
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### Why did the salt on the skin of my turkey react with the aluminum foil it was touching?

If you don't mind, I'll start with a more colloquial and hopfully not to lengthy explanation: Precious metals, such gold, do not corrode under "household conditions", others, such as iron or ...

### Chilling water in copper vessel

Do not do it !! ( putting acidic, or rather any juice to copper bottles ) You are in danger of copper poisoning. Generally, by food processing laws, copper is not allowed to be in direct contact ...
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### The importance of the cold chain in the food and the pharmaceutical industry

Answer here from a quality manager in the pharmaceutical field in Europe. Pharmaceutical companies are obliged to perform stability tests for their products according to the relevant pharmaceutical (...
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### Why do green bell peppers become bitter when cooked?

Thousands of different chemicals, previously spatial separated, are mixed together after thermal death of cells, and kept at high temperature to react well. Final taste will depend on original system, ...
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### How long would it take for sucrose to undergo hydrolysis in boiling water?

This is a nice well-defined question, and luckily there is excellent data for which we can provide a quantitative answer. Richard Wolfenden's research group has sought for many years to characterize ...
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### Why do the physical properties of an egg shell change when the egg shell is exposed to vinegar for a week?

It doesn't make calcium carbonate rubbery, it removes the calcium carbonate. Egg shells are not purely calcium carbonate they are more like a composite with a continuous matrix of calcium carbonate ...
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### If LPG gas burners can reach temperatures above 1700 °C, then how do HCA and PAH not develop in extreme amounts during cooking?

It is the temperature of the pan that matters not the flame The flame temperature is irrelevant if you are cooking in a vessel. the only temperature you need to worry about is the temperature of the ...
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