- Cook 12 Cup Pot
- Self filtration installed
- Use of regular filters as well
Totally up to you.
A paper filter will filter the oils in the coffee and give you a "brighter" flavor in your coffee. Filtering the oil out may also change the health factors of drinking coffee, since those oils provide nutrition elements that are both good for you and bad for you.
The metal filter by itself will let oils and fines into your final brew. The oils will make the coffee taste richer and more earthy. The fines (which are dust like fine grinds of coffee) will create some sludge in the final brew. Not a lot probably, but some.
I suggest that if you like how the coffee tastes with a paper filter, keep using a paper filter. And if you want to try without paper, consult the manual first to make absolutely sure this is ok with your machine. I can't tell which model Cooks 12 cup you have, so I don't know if your machine actually has a permanent filter or just a basket.