Short answer

Look for dough that has expanded and feels aerated. During the final prove, a gentle indentation should return slowly, leaving a slight mark. Use several clues together: no single test gives a perfect answer.

This is a published, non-clinical demonstration of the supporting-explainer format.

Two different rises

First rise

The whole batch rises before shaping. For the example white dough, look for approximately doubled volume and a softer, airier feel. A straight-sided container makes the change easier to see.

Final prove

The shaped loaf or rolls rise before baking. They should become visibly puffy while retaining their shape. Handle them gently at this stage.

Reading the signs

ObservationPossible interpretation
Firm dough that springs back immediatelyIt may need longer.
Puffy dough with a slowly returning indentationIt may be ready to bake.
Fragile dough that collapses when touchedIt may have proved too far.

Why timing changes

A warm kitchen usually speeds fermentation; a cool one slows it down. Water temperature, yeast quantity and the dough recipe also affect the pace. Treat the times in the guides as checkpoints.

Keep a simple baking note

Record the room temperature, approximate rising times and the finished result. A few notes from your own kitchen can be more useful than repeatedly aiming for an exact time from a recipe.