At the start of mixing, a bowl of very wet dough can feel less like bread and more like a problem. Bassinage changes the order: some water is held back, then worked in after the dough has started to develop.
In his guide to mixing bread dough, baker Maurizio Leo describes this gradual addition and the practical option of withholding some of the second water if the dough already feels too loose. It is a mixing technique, not an instruction to keep pouring until every flour behaves like a high-hydration flour.
Count the water before mixing
Here is an illustrative calculation, not a complete bread recipe. A formula containing 500 grams of total flour and 375 grams of total water has 75% hydration. If 25 grams of that water is reserved for later, the total remains 375 grams. The reserved portion is not an extra 25 grams on top.
Where a preferment is involved, its flour and water belong in those totals too. Write the numbers down before your hands become sticky. A small jug marked as the reserved water is easier to track than an unmeasured splash from the tap.
Let the dough answer
Add the reserved water in small portions while following the recipe’s mixing method. The dough may briefly look slippery or broken before it comes together again. Give each addition a chance to incorporate rather than chasing that appearance with extra flour. If the dough stops recovering its structure, pause and reassess instead of treating the empty jug as the goal.
Flour choice matters. King Arthur Baking’s hydration explanation describes how water affects handling and why wetter is not automatically better for every style of bread.
For a useful trial, keep your familiar recipe, flour and batch size constant. Record the reserved amount, what you actually added and how shaping felt later. Compare the baked loaf as well as the mixing bowl. A manageable dough that gives the crumb you want is a better result than a higher hydration number you cannot repeat.