Chemex filters are 30% heavier than other filters and that's where the magic happens. The thicker filter removes more sediment, oils and fats, making for a cleaner tasting brew. Less grit for your craw. These filters also slllooowww down the flow, so, even though it will take longer to get your coffee (still reading?), you'll get more extraction. If you're not convinced ... well ... try to believe in magic, you beautiful unicorn.