parts water

1:17 coffee
1:15 coffee

Use the same measure for all ratios on this site. I use grams.

Determine how much brewed coffee you want to make. Typically, I fill my thermos with water as full as I want it. This is the baseline number you enter in the top field.

Measure the amount of ground coffee and water to boil. The number for final water is larger because the coffee grounds hold some water when saturated.

I built this site because I often forget the ratios of coffee to water.