Uploaded September 2025 | Updated September 2026, 4 hours ago

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In this video, I show you the WD-A2 reverse osmosis water filter from Waterdrop. This is a countertop R.O. filter, that fills a 1 liter carafe with purified water, via reverse osmosis process. It also has a water spout for dispensing both hot and cooled water. Let's see how well this filter works, and what it does for coffee.

-- Products used/recommended in this video --
(these are affiliate links that help fund videos like this, at no extra cost to you)

► WD-A2:
🇺🇸 amzn.to/4lTgZAR
🇩🇪 amzn.to/41rSL9N
🇬🇧 amzn.to/4p3ldsI
🇪🇺 geni.us/WaterdropWDA2

► Support the Channel, shop my storefront: amazon.com/shop/tomscoffeecorner

► Grinder Suggestions: kit.co/tomscoffeecorner/grinder-suggestions

► My Pocket 3 Gimbal Camera: geni.us/OSMOPocket3

Machine source: provided by Waterdrop

Beans used: Valentine Dolce

Chapters:
0:00 Intro
1:09 What is Reverse Osmosis?
2:06 Features and Specs
6:01 Measurements
8:31 Can water be too pure?
11:16 Dispensing hot and cold
13:03 Taste Test

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*DISCLOSURE: The above Kit.co and Amazon links lead to Amazon, and since I am an Amazon Associate, I earn from qualifying purchases, at no extra cost to you.

#TomsCoffeeCorner #Espresso #HomeBarista