Yes.
It would not be a good idea to use rice as fuel. It’s not a good idea for corn either.
For corn, it increases the price of food . Also, once you include the fuel use to grow the plants, no fuel is saved. It’s not green at all. It wouldn’t be profitable without subsidies. It would be the same for rice.
It works for sugarcane in tropical countries because they are easier to transform into ethanol and they are more productive plants. Using grains like corn, rice, wheat, etc is a bad idea.
For producing alcohol drinks, it’s not an issue. All the other component of the rice are part of the drink and contribute to its taste. It’s standard to drink alcohol from plants rather than drink alcohol made by petroleum chemistry.
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