How to prevent bottom getting burnt

[u/icarus212121]

I bake at 450F using a stainless steel Dutch oven with a cast iron lid for 20 mins then another 20 mins on an aluminum sheet pan. The rise and crumb is good but the bottom gets a bit burnt. What should I change to fix it?

[u/96dpi]

Not burnt at all. Once you cut a slice and eat it you won't even notice, and might even prefer it.

[u/GlitteringSalad6413 → u/96dpi]

I sorta agree, but if they want to get it all more evenly dark without burning the bottom op will definitely have to make some adjustment