Independent home-brewing notes — not affiliated with the original Snobcoffery blog, its author or the domain’s previous owner.

a photocopied field guide to filters & home-brew gear

Issue no. 1 · October 2026

Notes on filters, gear & the cup in between

Snobcoffery is a small, independent reference on home-brewing gear — mostly the AeroPress and the filters that sit at the bottom of it. Every page is written from published material: manufacturer pages, peer-reviewed or university research, and coffee-trade reporting, each listed under “Sources”. Nothing here is a product test, and nothing is for sale.

The domain once hosted a personal brewing blog. This is a new project with no connection to that blog, its author or the domain’s previous owner (see About). A handful of old addresses on this domain are still linked from coffee sites around the web, so those addresses now carry fresh, sourced pages on the same topics.

Start here

ExplainerAeroPress filters: paper vs metalWhat each filter lets through, according to AeroPress and published comparisons. Gear fileThe Able DISK FineThe stainless steel AeroPress disk from Able Brewing, and how it was received in 2012. MethodReading filter comparisonsMicron sizes, blind tastings and how to run a fair side-by-side at home. HealthMetal filters & cafestolWhat research says about coffee diterpenes and LDL cholesterol. TravelCoffee culture in ParisFrom Café Procope to the specialty wave of the early 2010s. RoasterKuma Coffee, SeattleA short sourced profile of the Interbay roaster.

Why filters get their own site

The AeroPress was unveiled in November 2005 by Alan Adler, a Stanford engineering lecturer best known for the Aerobie flying ring. It is a cylinder, a plunger and a screw-on cap that holds a small round filter — and that filter decides a lot about the cup. AeroPress’s own guidance says paper “removes those elements for a very clean cup”, while a metal disk “does not absorb oils or withhold fines” and so “increases the texture and body” of the brew.

That single swap is one of the cheapest experiments in home coffee. It changes body and clarity, and — according to research summarised by the Harvard T.H. Chan School of Public Health and a 2025 Uppsala University study — it also changes how much of the cholesterol-raising diterpenes cafestol and kahweol end up in the cup.

Quick reference

FilterWhat it holds backTypical cup
AeroPress paper micro-filterOils and most finesClean, lighter body
Stainless steel disk (e.g. AeroPress metal, Able DISK)Larger particles; holes on the AeroPress metal filter are 178 micronsFuller body, more texture, some sediment
Two papers stackedMore of the aboveEven lighter body

Summarised from AeroPress’s published guidance; see the individual pages for sources.

How this site works

Sources

  1. AeroPress — Wikipedia
  2. AeroPress: Metal filter vs paper filters
  3. Harvard T.H. Chan School of Public Health — The Nutrition Source: Coffee
  4. Uppsala University press release (2025): Cholesterol-elevating substances in coffee from machines at work

Sources opened and checked October 2026. Prices, addresses and products change.