I have my test results in for the jarred salads I took to work all week. Read that post here.
I had 4 jars ready in the fridge and the lids were kept on. There was some discussion about it needing to breathe in the fridge but there were no problems with wilting at all.
The ingredients stayed fresh and crisp. I look forward to changing them up with different ingredients but one thing I don’t think would be a good idea is using any meat products in there. If you want your boneless chicken or some tuna please keep it in a separate container as I think there is too much of a risk of spoilage with those products.
Let me know if you try this and what layers you came up with.