When I make cold brew, I just use room temperature water.
Has any one tried putting a small amount of hot water to steep for a few minutes first and then filling the container with cold water for the remaining 12 to 24 hours?
I steeped in hot water for 3 minutes, then added the cold water before putting it in the fridge for about 20 hours.
I found that the grinds settle to the bottom a lot better than usual, which was nice. It also accentuated some of the more sour and tangy flavors compared to just using cold water.
Personally, I liked ithe flavor better with just cold water. Maybe I'll try again with dark roast just to see what it tastes like.