Hario Replacement Glass Spiral – Water Dripper Wood 2L (WDW-20)
Between the upper water tank and the coffee bed, a curved glass tube guides the water on its way down – a delicate, hand-blown piece that lets you watch the drop travel almost in real time.
Because this spiral is built so thin and open, it's the most delicate part of the whole tower. One knock while repositioning it is enough for the tube to crack. The replacement spiral brings the Water Dripper Wood back to its original shape.
A path made of glass
Design and feel shape the enjoyment before the first drop even falls – with hardly any other device is this as visible as here: the shape of the spiral gently slows the water flow before it meets the coffee bed, contributing to the even, slow extraction the Water Dripper is built for.
At a glance
| Compatible with |
Hario Water Dripper Wood 2 L, WDW-20 |
| Position in the tower |
Connecting spiral between water tank and coffee bed |
| Material |
Heat-resistant glass, handmade |
| Origin |
Hario, Japan |
Who it's for
For anyone with a Hario Water Dripper Wood 2L whose glass spiral has a crack or a break. The most delicate but also most distinctive part of the tower can be replaced on its own.
What goes with it
An even, medium to slightly coarse grind suits the slow drip best. Anyone looking for a grinder that's affordable and precise will find it with the Varia VS3 or the Comandante C40 hand grinder from our coffee grinder collection; for more automation, the Varia VS6 or the Option-O Lagom. For dosing, scales from the Normcore collection or the Acaia collection. More accessories in the Hario collection.
Frequently asked questions
How easily does the glass spiral break?
It's built delicately and reacts sensitively to knocks – handling it carefully while cleaning and repositioning extends its life significantly.
Can I replace it myself?
Yes, the spiral can be swapped in the wooden frame without any tools.
Does the spiral affect the flavor?
Not directly, but its shape creates the even, slow water flow that defines the characteristic cold drip extraction.
Can I see the product before buying it?
Yes, in our showrooms in Bern (Gerberngasse 44) and Zürich (Hagenholzstrasse 50b) you can see the replacement spiral in person.
Roastery tip
A cold drip with substance deserves dense, aromatic beans – our main recommendation: Cozy Chocolate and Nutty Delight. For maximum body with no acidity at all: Very Nutty. For anyone looking to discover a fruity experience: Wild Peach. That's our recommendation, one of many.
