Finally nailed a Japanese-style flash chilled iced coffee and it's changed how I think about "cold brew"
Not technically cold brew in the immersion sense but close enough in spirit that I figure this sub won't mind. I'd been doing the standard 12 hour steep for years, 1:8 ratio, coarse grind, fridge overnight, the usual routine. Results were fine but always a little flat and muddy tasting to me, especially with lighter roasts.
Tried the pour over onto ice method last week after reading about it and honestly it's a completely different experience. Basically you brew a normal hot pour over but with your ice already sitting in the carafe, so the coffee hits the ice and chills instantly instead of steeping cold for half a day. I used about 22g of coffee for 200g total water/ice weight, roughly 100g ice and 100g hot water at 205F poured over medium-fine grounds.
The clarity is what got me. All the floral and citrus notes that get buried in a long steep actually show up. It tastes closer to what the coffee is supposed to taste like hot, just cold. Immersion cold brew still has its place for me, especially when I want something low acid and chocolatey for a milk drink, but for single origin light roasts I don't think I'm going back to the long steep.
Only annoying part is you need decent ice, the cheap cloudy stuff from my freezer melts too fast and waters things down before the extraction finishes. Been using a big block tray now and it makes a noticeable difference.
Curious if anyone else bounces between both methods depending on the bean, or if you've settled on one and just stuck with it.