Hario Mugen & Switch Hack
The popular Mugen/Switch modification places a compatible Hario Mugen cone in the Switch base. It is an unofficial configuration, so check fit and stability before adding hot water and return to the original parts if anything rocks, binds, or leaks.
What changes
The Switch mechanism opens or closes the outlet for immersion control. The Mugen cone has a different internal wall pattern from a standard V60 cone, which changes paper contact and drawdown. The combined brewer does not automatically blend “immersion body” with “pour-over clarity”; the cup depends on coffee, grind, water, ratio, agitation, steep time, and drawdown.
Fit and safety
- Use components of compatible size and inspect the silicone base and glass/plastic cone for damage.
- Assemble the brewer dry and confirm the cone is fully seated.
- Place it on a stable server that supports the base.
- Rinse the paper and test the valve with plain hot water.
- Never force the cone or lift the assembled brewer by an unsecured component.
Starting recipe
| Variable | Starting point |
|---|---|
| Coffee | 20 g |
| Water | 300 g |
| Temperature | About 93°C / 199°F; adjust to roast |
| Grind | Medium |
| Steep | 2:00 before release |
| Total drawdown | Aim for roughly 3:00–4:00, then adjust by taste |
Method
- Rinse the paper and discard the rinse water.
- Close the Switch and add 20 g of medium-ground coffee.
- Pour 300 g water, wetting all grounds.
- Give one gentle stir or swirl and cover if desired.
- At 2:00, open the valve and let the brewer drain.
- Swirl the finished brew and taste after it cools slightly.
Troubleshooting
| Taste / behavior | Adjustment |
|---|---|
| Sour, thin, fast drawdown | Grind finer, steep longer, or use hotter water |
| Dry, bitter, slow drawdown | Grind coarser, reduce agitation, or shorten steep |
| Stalls late | Use less agitation and check filter seating/fines |
| Uneven bed | Wet all coffee promptly; one gentle stir is enough |
| Leak while closed | Reseat components and test the original Switch cone |
Experiment methodically
Change only one variable per brew and record it with the coffee app guide. For a simpler immersion recipe, compare the AeroPress guide.
