Hario V60 01 papers are conical filters intended for a compatible size 01 V60. The source lists 100 white, oxygen-bleached papers per pack. Matching the paper to the brewer is the first practical consideration: the model number identifies a fit, rather than a flavour grade or a precise number of servings.
Seat the paper properly and prepare it according to your recipe and the manufacturer's guidance. The paper, brewer geometry, coffee bed and pouring routine work together, so no filter alone guarantees even extraction. If drainage changes unexpectedly, check preparation and grind rather than assuming the paper must be faulty.
Keep unused filters dry and free from strong storage odours. The source calls the papers compostable, but disposal rules depend on the local collection system and the actual product specification. This profile records the listed pack details without claiming a controlled taste comparison, an exact flow rate or universal compost-collection acceptance.
The conversation
A good question can make a better brew.