It’s just the type of paper filter that was used. The person in the post used a flat-bottom filter when a No°3 or No°4 cone filter would’ve been better. (As an extra aside, the specific type of pour over device seems to be from Starbucks, and those come with No°3 cone filters to begin with.)
What’s wrong with a paper filter for a pour over?
It filters out the microscopic pasta chunks that you get to chew on if you brew it directly in the cup
Ooh like an Italian version of bubble tea
mmm delicious 😋
Pretty wasteful, better use a French press
Or espresso
It’s just the type of paper filter that was used. The person in the post used a flat-bottom filter when a No°3 or No°4 cone filter would’ve been better. (As an extra aside, the specific type of pour over device seems to be from Starbucks, and those come with No°3 cone filters to begin with.)
That could be a malita filter, which has a flat bottom.