If coffee beans can be used for green energy, why not beer? That’s what New Zealand-based DB Export Brewtroleum is doing. Biofuel made of its natural beer waste is available at Gull pumps across the country. The biofuel is made by distilling the leftover yeast to create 95 percent pure ethanol. The result is a biofuel which produces less greenhouse gas emissions than regular petrol and enables the brewery to reduce the waste created during the brewing process. We say cheers to that!
Turning beer into biofuel
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