…and soil supplements, something he decided to do after consulting with researchers and agricultural engineers over several months. The process involves collecting coffee dregs, or residue and grains left at the bottom of coffee, and leaving it out in the sun to dry. The coffee waste can then either be used for lemon and orange trees, and it can… also be mixed with agricultural fertiliser.  According to Safady, the coffee waste, which is rich in magnesium, potassium and nitrogen, all improve the soil quality. The coffee waste is also used for irrigating flowers by adding water to the dry coffee waste and leaving it for two to three days until it becomes amber in colour. The liquid that forms…

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