Stop looking at the clock. Look at the dough

If your sourdough keeps coming out dense, gummy, or shaped like a hockey puck, bad news: your recipe isn't the problem.

Good news: your starter isn't dead, and you don't need a degree in biochemistry to fix it.

Here is the #1 search topic in home baking right now—under-fermentation vs. over-fermentation—and the simple trick to master it every single time.

❌ The Trap: Baking by Time

Most recipes tell you to "bulk ferment for 4 hours."

Sounds simple, right? Except if your kitchen is 68°F (20°C), 4 hours leaves your dough completely under-fermented. If your kitchen is 78°F (25°C), 4 hours turns it into a sticky puddle. Time is a lie; dough temperature and visual cues are everything.

🎯 The Fix: The "Sample Shot Glass" Hack

Instead of guessing when your main batch is ready to shape:

1. Pinch off a small sample (about 15–20g) of dough right after mixing in your starter.
2. Pop it into a small, straight-sided shot glass or small glass jar.
3. Mark the starting line with a rubber band.

When that mini sample rises by 50% to 75% (showing nice lacy bubbles on the sides and a gentle dome on top), your dough is officially ready for the fridge. No more guessing.

💡 The Cheat Sheet: Diagnosing Your Crumb