What does Ezekiel 46:20 mean?

He said, This is where the priests will boil the meat for the guilt and sin offerings, and bake the grain offerings, so they don't have to bring them out into the outer courtyard and accidentally make the people ritually unclean. Ezekiel 46:20 - Modern Text Bible

(This room is set aside for preparing offerings, keeping sacred things separate from the public areas to protect ritual purity.)