When using ADY just hydrate it in about 5-times its weight of water (you can use a little more if you wish as the amount is not critical but whatever amount you use be sure to reduce the amount of cold water added to the dough by the amount of warm (100 to 105F) used to hydrate the ADY. For most pizza doughs we are looking for a finished dough temperature of 80 to 85F, and with a room temperature of 70F the temperature of the cold water that you add will be about 60 to 65F. Here is a way to adjust the amount of water that I’ve seen successfully used at a number of pizzerias. Put the full amount of water (cold) in the mixing bowl, then use a measure to remove a small portion of water (a measuring cup works well) portion out two cups of water from the mixing bowl, using your hot and cold tap water adjust the water temperature to 100 to 105F, now use two cups (or whatever portion you used to remove water from the mixing bowl) of the tempered water to hydrate the ADY in, after 10-minutes hydration time stir/whisk the yeast suspension and pour into the cold water in the mixing bowl, rinse the container in the water in the mixing bowl and you’re good to go. In reality, you will end up drawing two cups of water at 100 to 105F and pouring it into a small container (bowl) then adding the ADY and stirring it in, then let it hydrate for 10-minutes, you can now add the cold water to the mixing bowl, remove two cups of the cold water and discard, then stir/whisk the ADY suspension and pour it into the cold water in the mixing bowl rinsing the bowl by dipping it into the cold water, you are now good to go. I like to add the flour next followed by the salt and sugar (in used), then mix for about 2-minutes at low speed or just until the flour is hydrated (you won’t see anymore dry flour in the bottom of the bowl) then add the oil and mix for 1 more minute at low speed, finish mixing at medium speed if your mixer is up to it, or continue mixing in your normal manner. By adding the oil later in the mixing stage (delayed oil addition mixing method) you will remove a lot of variability from the dough.
Tom Lehmann/The Dough Doctor