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SEND_INVENTION_IDEAS t1_iux0fds wrote
Reply to comment by THP_music in Researchers fed microalgae on leftover coffee grounds to produce high-quality biodiesel | It could decrease reliance on palm oil to produce biofuel. by chrisdh79
My question is how much coffee waste actually is there? Surely nowhere near enough to make a dent in biofuel production.
SEND_INVENTION_IDEAS t1_iv12iha wrote
Reply to comment by THP_music in Researchers fed microalgae on leftover coffee grounds to produce high-quality biodiesel | It could decrease reliance on palm oil to produce biofuel. by chrisdh79
So each person on Earth produces 3 tonnes of coffee waste each year? 8 kg a day? At ~20 g a cup that's 400 cups of coffee a day per person.