Summer Sourdough Crushed Ice & Water Temp Chart for a Hot 80 Degree (80°F / 27°C) Kitchen — Spiral Mixer (76°F Artisan DDT)
4-factor Desired Dough Temperature (DDT) and 80 cal/g latent heat crushed-ice calculation for hitting 76°F dough in a hot 80°F room.
Four inputs decide the temperature of your water: the 76°F target dough, a 80°F room, 80°F flour, 80°F levain, and +18°F from spiral mixer (76°f artisan ddt). Solve 4 × 76°F − (80 + 80 + 80 + 18) and you land on 46°F (7.8°C) of mix water in this 80°F (26.7°C) kitchen. The faucet supplies 76°F and the dough needs 46°F, so ice is the only route: weigh 56g of crushed ice and 294g of 76°F water for the 350g batch, exploiting 80 cal per gram of phase change.
- Required Water Temp
- 46°F (7.8°C)To hit 76°F DDT in 80°F room
- 350g Batch Ice Split
- 56g Ice / 294g WBased on 76°F tap water & 80 cal/g latent heat
- Mixer Friction Factor
- +18°FSpiral Mixer
- Target Final Dough Temp
- 76°F (24.4°C)Locks fermentation clock & protease rate
Water Temperature Solver: 80°F (26.7°C) Room, Spiral Mixer (76°F Artisan DDT) (+18°F)
Assumes room, flour and levain are all at 80°F (26.7°C) — probe them before trusting the numbers.
| Recipe Water Weight | Required Mix Temp | Crushed Ice Weight | Tap Water (@ 76°F) | Achieved Dough Temp |
|---|---|---|---|---|
| Batch 300g [Baseline] | target 46°F / 7.8°C | ice 48g | liquid 252g | lands on 76°F |
| Batch 350g Down 50g | target 46°F / 7.8°C | ice 56g | liquid 294g | lands on 76°F |
| Batch 500g Up 50g | target 46°F / 7.8°C | ice 80g | liquid 420g | lands on 76°F |
| Batch 250g Down 100g | target 46°F / 7.8°C | ice 40g | liquid 210g | lands on 76°F |
| Batch 400g Up 150g | target 46°F / 7.8°C | ice 64g | liquid 336g | lands on 76°F |
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 80°F Room: Why You Need 46°F Water (56g Ice)
Levain temperature is the silent variable in this equation. If the 80 deg F (26.7°C) kitchen assumption holds for the room and the flour but the levain actually sits two degrees cooler, the finished dough will miss the 76°F target by about half a degree, and in a hot month that is enough to ferment the dough noticeably faster than planned.
Water temperature and flour temperature trade off. A 2°F cooler mix water offsets a 2°F warmer flour, but only if the correction is applied before the two meet — once the flour is wet, the system is already committed.
Thermal Control Protocol for Spiral Mixer (76°F Artisan DDT) in a 80°F Room
- Start the Night Before: In a 80 degrees (26.7°C) kitchen the flour will sit near room temperature overnight if you store it sealed, so re-probe it in the morning rather than trusting yesterday's reading.
- Prepare the Water Station: Get the 46°F (7.8°C) water ready before you open the flour bag — once the flour is wet the temperature negotiation is over.
- Blend Ice and Water: Stir 56g of crushed ice into 294g of 76°F tap water until the slush is uniform, then pour over the flour.
- Record and Repeat: Note the final probe reading alongside the 80 degrees (26.7°C) room temperature so the next bake is a copy rather than a calculation.
Diagnostic Answers: What Water Temp for Sourdough in a 80°F (27°
Does the type of mixer actually change the water temperature?
Yes, and that is exactly what the friction factor models. Spiral Mixer (76°F Artisan DDT) contributes +18°F, so the same 80°F (26.7°C) kitchen needs a 46°F mix water for this machine and a different one for a hand-mixed dough.
How much colder is the water than the room in this 80°F (26.7 Celsius) kitchen?
34°F below the room temperature of 80°F. That gap is the entire thermal load that 18°F of spiral mixer (76°f artisan ddt) friction and 80°F ingredients impose on the mix water.
How accurate is the 46°F figure in practice?
Within about 1°F, provided the four inputs really are 80 degrees room, 80 degrees flour, 80 degrees levain and +18°F friction. Probe the finished dough to confirm and adjust your next bake.