Water recipes
[Edited in 2023 to add more temperatures for green teas and such]
Here’s some simple recipes for water at different temperatures. If you can measure in grams or mL, you can make about one litre of water at common tea temperatures pretty easily. The power of stoichiometry and basic maths!
Preparation
Have some filtered water at room temperature (20 C ideally, but 16~30 C is fine), and bring at least 1 L to a boil. Pick a container that can hold a bit more than 1L, and wash/preheat it by pouring some of the boiled water into it, then pour it out. If your room is somewhere between 18 and 30 C, you’re fine.
70 C
Mix 700 mL of boiling water with 400 mL room temperature water. This will make 1,1L of 70 C water.
75 C
Mix 700 mL of boiling water with 300 mL room temperature water.
80 C
Mix 750 mL of boiling water with 250 mL room temperature water.
85 C
Mix 900 mL of boiling water with 200 mL room temperature water. This will make 1,1 L of 85 C water.
90 C
Mix 1L of boiling water with 150 mL room temperature water.
95 C
Mix 950 mL of boiling water with 50 mL room temperature water.