Got a sandwich and person put on gloves but then touch a phone that was wet w cleaning products then went back to sandwich put in the oven 30mn worry?

Don't worry: I understand you are concerned your sandwich got exposed to chemicals that could be harmful. The dose makes the poison. I suppose the amount of chemical transferred to the gloves was small, and from the glove to your sandwich even smaller. When did you eat the sandwich? Did you have any symptoms immediately or later? I think you don't need to worry. The worry is worse than the chemical exposure.