Paper filters are fairly inexpensive and for those that just make an occasional cup of coffee they are alright, but for those that are heavy drinkers of coffee a metal filter or some other type of reusable filter should be considered. The metal filters and the reusable filters are much more expensive but they will last longer and might save you money in the long run plus they have a much more positive impact on the environment than the paper ones.
When using metal filters there are oils that seep through and into the coffee that carry a lot of taste, but these oils also oxidize fairly quick and they change the taste of the coffee in the process. There have been some health concerns about the oils as they are considered to raise cholesterol levels, or the LDL levels which is a harmful type of cholesterol.
The reusable metal filters have higher maintenance as they need to be cleaned after each use were as the paper filters can simply be thrown in the trash straight away.
There are many types of permanent filters available and it´s hard to make a choice which are the best ones, but the following two filters can be considered when buying a permanent filter.
Medelco Cone Permanent Coffee Filter
This coffee filter is made from surgical grade stainless steel which makes it highly durable and really enhances the taste of your coffee. Cleaning it is easy and it´s also easy to maintain. When making coffee with this filter there are minimal residual leftovers in the cup and it filters the grounds thoroughly without compromising the taste or the aroma of the coffee.
Cuisinart GTF Gold Tone Filter
The Cuisinart filter is designed so it is able to fit most types of basket-style coffee makers. It is really easy to clean under running water and it can also be cleaned in your dishwasher. The taste of the coffee is bright and fresh as it seems to enhance the taste of the coffee.
Most people prefer to buy paper filters as they are simply easier to use than the metal ones and the following two types of filters are worth considering when buying paper filters.
Hario V60 Misarashi Coffee Paper Filter
This paper filter is very durable and very easy to use and fits well into cone shaped drippers. The residual leftovers in the coffee are nonexistent and the taste and aroma are very good.
Chemex Bonded Unbleached Pre-folded Square Coffee Filters
This filter also filters out any residues to give you a bright and sparkling looking cup of coffee instead of a murky one. The paper it´s made from is durable which allows the coffee to be properly infused giving you a cup of rich and smooth coffee.
It really is a matter of personal choice which filter you choose, for stronger flavored coffee a metal filter would be ideal, while paper filter tends to filter the coffee better. If money is a factor then buying a paper filter might suit you better than the more expensive metal filter. But whichever filter you choose remember that they are only a part of the process of making a good cup of coffee, not the deciding factor.