Cold brew
Make cold brew with a clear target.
Decide whether you want concentrate or ready-to-drink coffee, then control ratio, grind, time, and dilution with less guesswork.
Open the Cold Brew Calculator →How to make cold brew coffee
Start with concentrate or ready-to-drink, then set ratio, grind, steep time, filtering, and dilution without mixing up strength and extraction.
Go deeper →Choose concentrate or ready-to-drink first
Cold brew ratios mean different things depending on whether you are brewing a concentrate for later dilution or a beverage intended to drink as-is. Define the target before comparing numbers.
Go deeper →Use a coarse, consistent starting grind
Cold brew has a long contact time, so consistency matters more than chasing an exact visual grind label. The grinder and filtration method can shift the best setting.
Go deeper →Treat steep time as one variable, not the recipe
Time interacts with grind, temperature, agitation, coffee, and ratio. Keep the rest stable when adjusting steep time so the taste change is meaningful.
Go deeper →Too weak or too strong?
First separate concentration from extraction. A concentrated cold brew can still taste hollow, and a dilute brew can still taste harsh. Ratio and dilution fix strength; grind and time more directly affect extraction behavior.
Go deeper →