Summer Sourdough Crushed Ice & Water Temp Chart for a Hot 84 Degree (84°F / 29°C) Kitchen — Spiral Mixer (74°F Artisan DDT)
4-factor Desired Dough Temperature (DDT) and 80 cal/g latent heat crushed-ice calculation for hitting 74°F dough in a hot 84°F room.
Target a 74°F (23.3°C) dough, account for a 84°F (28.9 Celsius) room plus 84°F flour and levain, then add the +18°F of heat that spiral mixer (74°f artisan ddt) generates: 4 × 74°F − (84 + 84 + 84 + 18) = 26°F of mix water. Blending 96g of crushed ice with 254g of 78°F water is how you reach 26°F in this kitchen; the phase change alone strips 80 cal per gram before the water even warms.
- Required Water Temp
- 26°F (-3.3°C)To hit 74°F DDT in 84°F room
- 350g Batch Ice Split
- 96g Ice / 254g WBased on 78°F tap water & 80 cal/g latent heat
- Mixer Friction Factor
- +18°FSpiral Mixer
- Target Final Dough Temp
- 74°F (23.3°C)Locks fermentation clock & protease rate
DDT Reference for 84°F Kitchens — Spiral Mixer (74°F Artisan DDT) Water & Ice Split
Calculated using 4-factor calorimetry and latent heat of fusion (144 BTU/lb / 80 cal/g) with 78°F tap water.
| Total Recipe Water | Theoretical Water Temp | Crushed Ice to Weigh | Tap Water (@ 78°F) | Resulting Final Dough Temp |
|---|---|---|---|---|
| Line 400g [350g Ref] | required 26°F (-3.3°C) | weigh 109g ice | measure 291g liquid | expect 74°F dough |
| Line 350g 100g Lighter | required 26°F (-3.3°C) | weigh 96g ice | measure 254g liquid | expect 74°F dough |
| Line 250g 100g Heavier | required 26°F (-3.3°C) | weigh 68g ice | measure 182g liquid | expect 74°F dough |
| Line 500g Half Batch | required 26°F (-3.3°C) | weigh 137g ice | measure 363g liquid | expect 74°F dough |
| Line 300g Large Batch | required 26°F (-3.3°C) | weigh 82g ice | measure 218g liquid | expect 74°F dough |
Real-Time Dough & Starter Scaling Sandbox
Scale this What Water Temp for Sourdough in a 8 specification up or down on your digital scale with zero hydration drift.
Baking Sourdough in a Hot 84°F Room: Why You Need 26°F Water (96g Ice)
Latent heat of fusion is why the cooling arithmetic is not linear. Replacing 96g of the 350g of water with crushed ice removes not merely 96g × 1 cal/g of sensible heat, but 96g × 80 cal/g of phase-change heat, which is what allows a 84°F (28.9 Celsius) room to be cooled into a 74°F dough.
Ice quantity and water quantity are not interchangeable views of the same thing. 96g of crushed ice is the solid portion; the 254g of tap water that accompanies it is what actually hydrates the flour. Both numbers must be weighed.
Thermal Control Protocol for Spiral Mixer (74°F Artisan DDT) in a 84°F Room
- Weigh the Full Water Load: For a 350g batch you need 254g of liquid water plus 96g of crushed ice. Set the scale up before you touch the flour.
- Chill the Water: Add the 96g of ice to the 78°F faucet water and wait until the melt is complete so the temperature is stable when the flour arrives.
- Mix in Spiral Mixer (74°F Artisan DDT): Combine flour and water, then run the mixer for the full recommended time so the +18°F of mechanical heat is actually generated rather than assumed.
- Confirm 74°F: Probe the finished dough immediately. In a 84°F (28.9°C) kitchen the reading should land on 74°F ± 1°F.
Diagnostic Answers: What Water Temp for Sourdough in a 84°F (29°
Why does my dough come out warmer than 74°F in a 84°F room?
Almost always the friction term. If you used 78°F tap water instead of 26°F, the 18°F that spiral mixer (74°f artisan ddt) generates has nowhere to go, and the finished dough overshoots the target.
How much colder is the water than the room in this 84 degrees (28.9°C) kitchen?
58°F below the room temperature of 84 degrees. That gap is the entire thermal load that 18°F of spiral mixer (74°f artisan ddt) friction and 84 degrees ingredients impose on the mix water.
Why is my crumb gummy even though the dough looked the right temperature?
A correct 74°F dough can still bake badly if the core never reached 208°F. Check the internal temperature with a probe rather than trusting the oven dial, and remember to cool the loaf for two hours before slicing.