Impacted crop treatment - when to start back on solid food?

[jillstu]

I started treating one of my hens yesterday for impacted crop - (massage the mass, olive oil/molasses/cooked oatmeal/meal worms/acidopholus capsules and access to water with ACV (they always get that anyway). Her crop wasn't completely empty this morning, but much better. I have her isolated and on the same diet today. She's laid an egg and pooped (larger than normal, lots of grass, but didn't seem tangled). Her demeanor has always been good, she's never acted sick at any time.

When is impacted crop considered "resolved"? How do I know when I can let her back to her regular schedule of free feeding dry mash (scratch and peck corn-free/soy-free) and foraging in the chicken paddocks?