Which factor influences crumb structure in bread?

• A. Gluten development
• B. Temperature
• C. Milling
• D. Salt level

Answer: (A)

Crumb structure comes from the gluten network that forms in the dough. As flour proteins hydrate and are worked during mixing and kneading, they link to create an elastic, cohesive matrix that traps the carbon dioxide produced by yeast. This gas retention shapes the interior with the pattern of air cells, so how well the gluten network develops directly determines the crumb’s texture and openness.

Temperature affects how quickly yeast ferments and enzymes act, which can change gas production and dough behavior, but it doesn’t establish the actual gluten framework that holds the crumb together. Milling changes flour particle size and starch damage, influencing water absorption and texture indirectly. Salt can strengthen gluten and slow fermentation, altering dough handling, but the key factor for crumb structure is the development of the gluten network itself.