The pandemic sourdough obsession produced millions of starter jars and billions of mediocre loaves. Social media fills with golden-brown photographs and detailed fermentation schedules, yet most home bakers still produce dense, gummy bread that tastes faintly vinegary. The reason isn't technique or ingredients—it's infrastructure. Commercial bakeries possess three advantages that home ovens cannot replicate: steam chambers, precise temperature control, and decades of cumulative knowledge baked into their culture. What Your Home Oven Can't Do A professional deck oven maintains humidity within millimeters while holding temperature within one degree. Your Dutch oven approximates this briefly, then fails catastrophically when you open it to score. Temperature swings during baking cause gluten to collapse, trapping gas instead of creating an open crumb. More critically, commercial starters and dough matrices improve across hundreds of batches. Your two-year-old starter is an infant by comparison—it lacks the microbial complexity that produces flavor depth. "Home bakers focus on technique when they should focus on ingredients," says Robert Valdez, head baker at San Francisco's Craftsman & Wolves. "Better flour, better water mineralization, and patience matter more than scoring technique. Your home kitchen can't match our steam, but your flour choice is unlimited." The shortcut: buy flour milled specifically for sourdough (higher protein content), extend your bulk fermentation to 6 hours instead of 4, and accept that your crumb won't match the bakery. Then enjoy your bread anyway.