A – See this shiur
Baking a cake in a meat oven
Q – Aren’t we worried that if you bake bread in a meat oven , you may eat it with milk by mistake? The same way that we don’t bake bread using milk?
A – Its a question that bothered me for a while and I didnt see anyone speak about it but my assumption is that we dont consider it completely dairy that one will violate the Isur if he happens to eat it unlike regular dairy bread.