I bought myself a Hario Switch this week. The Switch is essentially a V60 dripper with a rubber base and a lever-operated stopper. This provides more control over how long the water stays in the cone, so it can be used to make immersion-style brews as well as standard pour-overs (and combinations of the two methods). I like to brew a wide variety of different coffees, and while most of them work really well with the standard V60, with some of them, I struggle to get consistent cups. Most of the time, the issue is with weak/under-extracted brews, more often than not when I brew a single cup at a time. My hope is that the Switch will allow these coffees to steep a little longer, so getting even extraction is less dependent on timing and pouring technique. Or something like that. The Switch I bought has a glass cone, and is a size 3, which is the largest available. An article I read somewhere online recommended going with the size 3, because it can hold more water should I ever decide to try a full-volume immersion brew. I don’t have a standard size 3 V60, either, so the switch also gives me an option for brewing larger pour-over batches (e.g. for guests).

I used the switch for the first time today, with the coffee I had on hand (Zeke’s Beans of Summer). I ground 19.5g of beans at Ode setting 3+2, and brewed them with 300g water (1:15.4). To start, with the Switch’s drain closed, I poured 50g bloom water, agitated, and steeped until 0:45. Then, I opened the drain and followed my standard single-cup V60 technique the rest of the way. So, the bloom phase was the only variation from my usual way of doing things. This had more of an effect than I had expected: the finished cup had a more robust mouthfeel, and seemed a little “better” overall, than the other recent V60 cups I’ve brewed with these beans. Perhaps the “immersion bloom” is helping to wet the beans more evenly and leading to more consistent extraction. It will be interesting to see how subsequent cups turn out.