Various sizes of coffee filters are available to compare at Walmart, Target, Kroger, Publix and most other convenience stores. In addition, websites such as air-n-water.com host detailed guides meant to aid consumers in choosing the correct coffee filter.
Choosing the correct size, material and shape for a coffee filter is essential in running a coffee machine at peak efficiency. Filters ought to hold more than twice the volume of the grounds. Coffee filters come in six sizes, ranging from single cup size ones to massive size sixes. Size six coffee filters are good for 10 cups of coffee. Most coffee machine will specify which size best fits the equipment in their user manuals.