0 a paper cone or small bowl that allows only water through and can be used to make coffee by slowly pouring hot water through crushed coffee beans in the cone or bowl:
They have built a robot that can make coffee, from grinding the beans to pouring the water into the coffee filter.
Line a colander with paper towels or overlapping coffee filters.
Steps you can take to help the environment include using rags instead of paper towels and buying reusable coffee filters.
