Loaf 8: shaping

This is Loaf 8 of 16, and the one thing that changed from Loaf 7 is technique: instead of pressing the dough into the pan, you shape it into a tight log first.

Four things never move anywhere in this course, and they do not move here. 400 g flour. 8 g salt, which is 2%. One 9 x 5 inch (23 x 13 cm) loaf pan. An oven at 375°F / 190°C.

The formula is identical to Loaf 7

Nothing in the bowl changed. Same four ingredients, same gram weights, same hydration, same mix, same knead. Everything that is different about this loaf happens in the ninety seconds between the end of the bulk rise and the dough going into the pan.

The table is printed anyway, because you should be weighing from the page you are baking from.

Frozen: 400 g flour · 8 g salt (2%) · 9 x 5 in pan · 375°F / 190°C · Hydration: 60% (240 g water on 400 g flour)

Method

1. Mix and knead as at Loaf 7. Bulk rise at 75°F / 24°C to the usual gate: risen by half, domed, a wet fingertip dent that fills back slowly, about 1½ hours.
2. Turn the dough out and press it gently into a rectangle about 9 inches / 23 cm wide, popping any large bubbles as you go.
3. Roll it up tightly from the far edge towards you, pressing the seam closed with your thumbs at each turn.
4. Pinch the final seam shut and put the log in the greased pan, seam side down.
5. Second rise about 45 minutes at 75°F / 24°C, then bake 40 to 45 minutes at 375°F / 190°C. Cool on a rack at room temperature for at least 1 hour.

The rectangle should be as wide as the pan is long. That is where the 9 inches / 23 cm comes from, and it is why the rolled log drops in without being squashed to fit.

Why this works

Rolling the dough against itself puts the outer skin under tension.

Think of the surface of the dough as a thin membrane wrapped around everything inside it. When you press a blob into a pan, that membrane is slack. When you roll the dough up tightly, each turn stretches the outside layer over the layers beneath it and the membrane ends up taut, like the head of a drum.

A slack skin lets the dough go wherever gravity and gas push it, which is outward and downward. A taut skin resists sideways expansion, so the gas the yeast is making has one direction left to go, and it goes up. The skin holds that direction right through the second rise and into the oven, until the crust sets and the shape is final.

The seam matters for the same reason. A seam left open is a gap in the membrane, the one place with no tension, and the loaf will bulge or split there. Pinching it shut and laying it face down puts the weakest point of the skin at the bottom of the pan where the dough's own weight keeps it closed.

This is also why shaping and kneading are separate loaves even though both are just handling. Kneading builds the network. Shaping aims it.

How you know it's ready

The taut-for-thirty-seconds test. Shape the log, let go of it, and watch it.

A properly shaped log holds its surface tight for a full thirty seconds after your hands come off. The skin looks smooth and slightly stretched, and the log keeps its outline. That is a finished shape and it goes straight in the pan.

If it slumps and spreads the moment you release it, the skin never came under tension. Fold it over on itself a few more times, rest it on the counter at room temperature for 10 minutes so the gluten relaxes, and shape it again. A rested dough shapes tighter than a fought one.

Then the usual second-rise gate: the loaf has climbed to about ¾ inch / 2 cm below the rim of the pan, about 45 minutes at 75°F / 24°C. Bake to an internal temperature of 205 to 210°F / 96 to 99°C.

What goes wrong

The failure this loaf introduces: a long tunnel, or a big hole sitting just under the top crust.

The one cause: a pocket of air rolled into the log.

It happens at step 2. The dough comes out of the bulk rise full of gas, and if you lay it out without pressing it properly flat, one of those large bubbles survives into the roll. The rolling then wraps it into the centre of the log, where it has nowhere to escape to. In the oven it expands, floats toward the top, and leaves a cavern between the crumb and the crust. Butter falls straight through it.

The fix is in the pressing, not in the rolling. Flatten the rectangle out fully, and when you see a large bubble under the surface, squash it flat with your fingertips before it gets rolled up. The small bubbles are fine and you want them. It is the big ones that become holes.

When it worked

A taller, squarer loaf with a defined dome and an even crumb from the top crust to the bottom. The sides go straight up rather than bulging out over the pan.

The real payoff shows up at the knife: every slice is the same width all the way down the loaf. A pressed-in loaf gives you wide slices at the bottom and narrow ones at the top, and it is the single most obvious difference between homemade bread and the loaf you buy. This is the loaf that closes that gap.

Bake it twice successfully before you move to Loaf 9. One good loaf is luck. Two is a skill.