Gas: nm Gas is a natural or manufactured gaseous substance used as a raw material or source of energy.
Town gas, manufactured, or natural gas which is a mixture of hydrocarbons dominated by methane. It is used as heating and cooking (fuel gases).
In the kitchen, propellants and packaging gases are food additives used to extract products (whipped cream in a spray can, for example) from their container (propellant gas), or to modify the internal atmosphere...
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