Don't tell Jamil, but I don't use boiled and cooled water
Wen I'm going to rehydrate dry yeast, I usually get a bottle of drinking water and leave it at room temp. About 30 min before I pitch, I sanitize a glass measuring cup, then spray some star San on the neck of the water bottle. I open the bottle, hit the rim with one more blast of starsan and then put about 300 ml of water and some yeast nutrient in the cup.
Stir with a sanitized spoon until the nutrient dissolves then sprinkle yeast on top. Spray a piece of foil with starsan and cover.
About 15 min later, give the cup a swirl. Keep your spoon sanitized as you may have to scrape some of the yeast from the sides of the cup.
At 30-ish min, you should have a pretty well rehydrated slurry.
I only have about 5 min if actual effort into it
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