Laboratory

• 1). Measure the diameter of the filter paper. According to the Journal of Chemical Education, the diameter of the filter paper should ideally be 1 cm less than twice the diameter of the funnel.
  
  
• 2). Fold the filter paper in half, and then in half again. The paper should look like a quarter of a circle.
  
  
• 3). Open the filter paper.
  
  
• 4). Fold one of the four quarters of the filter paper circle in half so that the filter paper becomes cone-shaped.
  
  
• 5). Place the filter paper cone in the funnel and pour the solution you want to filter.
  
  

Coffee

• 1). Grind your coffee until the grains are medium-fine in size.
  
  
• 2). Wet the filter paper with hot water to minimize the amount of coffee oils that will be trapped in the paper.
  
  
• 3). Place the coffee in the filter paper.
  
  
• 4). Turn on the coffee maker and wait for your coffee to finish brewing.