Grate zucchini and salt it for 10 minutes, then squeeze out excess moisture using a clean kitchen towel—this prevents a soggy loaf and ensures optimal texture.

Whisk cocoa powder with a small amount of hot water before adding to the batter to intensify chocolate flavor and eliminate lumps for smoother texture.

Let eggs reach room temperature before mixing to create a more emulsified batter that binds ingredients better and produces a fluffier crumb.

Fold dry ingredients into wet ingredients gently just until combined—overmixing develops gluten in the almond and oat flours, resulting in a dense, tough loaf.

Check doneness at 50 minutes with a toothpick inserted in the center—it should have a few moist crumbs but no wet batter, as this bread continues cooking while cooling.