No! For the best results, discard the Hario V60 Paper filter after every use. The 01 size is able to filter 1-2 cups in a single use.
Yes! Simply place the Hario V60 Paper filter in your preferred Hario V60 Dripper. Happy Brewing!
The only difference between 01 and 02 filters is only their size/capacity. 01 Filters are used for 1-2 cups of coffee, while Size - 02 Filters can make up to 4 cups of coffee.