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I DO have a chemistry background (of the chemical engineering variety, so I wouldn't call it much of a chemistry background), which is to far in my past to be overly useful. The ingredient list on the back of my can of pam shocked me a little - can someone explain to me why it is safe to consume "propellants isobutane and propane"? Is this in some state different then the isobutane and propane we normally encounter as a fuel?
Here the ingredient list:
Ingredients: Canola oil, soya lecithin, natural and artificial butter flavour, annatto and propellants isobutane and propane.
Reason: Locked as duplicate topic here: http://caloriecount.about.com/eat-cooking-spray-isobutane-propane-ingredient-ft168057 Please post only one thread per topic, thanks.
Isobutane and propane are gases at room temperature and atmospheric pressure, so I am sure that the food industry would just say that they say go into the air and aren't comsumed in the food. Even if you don't remember the chemistry of hydrocarbons, I am sure that you still retain the concept that nothing that comes out of a distillation column is completely pure. It is just purified enough to meet specifications. So, I would worry more about the impurities that come along with the propane and butane and whether any of them might stay in the pan and get in your food.
I put this in the Weight Loss thread, also:
Ingredients in the "propellant"?
- nitrous oxide
- carbon dioxide
- soy lecithin (not part of the propellant [?] but in the spray)
Maybe taking a teaspoon of evoo and rubbing it on would be better?
This is from the '99 report by the European Commission: Scientific Committee on Food:
In view of the low residue level of propellant gases the SCF has no toxicological concerns about the use of water-based emulsion sprays and oil-based aerosol sprays for baking and frying purposes, which contain propane, butane or iso-butane."
I don't know about safety but I've never liked the taste of those spray cans of oil. Instead, I've bought a simple refillable pump dispenser into which I can put my own olive oil.
Plus, they are disgustingly expensive...nearly $5 for a can and there's only 100-170 ml of oil in a can, depending on brand...you could buy a whole lot more olive oil for that price.
The oil misters/ spray bottles are around $10, refillable and reusable, I've had mine for over a year and it is just now starting to get too cloggy to work. Great money-saving investment, a healthy way to cook, and extremely useful for making baked crispy-coated chicken!