This classic imbalance points to harsh conduction and weak radiant heat above. Add a diffuser, reduce flame, and stack a sacrificial pan under the main vessel. Keep the lid on longer to build top heat, then uncover to color. Elevate the loaf on a trivet to break direct contact. Rotate frequently, and consider flipping briefly at the end to finish the crown without deepening the base.
Gumminess usually signals underbaking or excess humidity trapped late. Confirm internal temperature, then extend the uncovered phase to drive off residual moisture. Slightly reduce hydration next time, or mix to stronger gluten for better gas retention. Allow full cooling so starches set. If using a very tight lid, vent earlier once spring finishes. Avoid slicing hot; steam will dampen the crumb and dull flavor.
Dense results often come from rushed fermentation, weak gluten, or dough chilled too cold before baking. Lengthen bulk until dough feels airy and domed, add one extra fold set, and mind dough temperature. If using whole grains, autolyse with part of the water to soften bran edges. Verify levain or yeast vitality. Avoid heavy bench flour that skews hydration. A small hydration tweak can unlock openness.
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