He'd consider it, go "huh that's weird" and then go past it because who knows it could be poisoned
Your oc is on a walk and they encounter 12 gallons of sweet tea. What will they do? What will they say? Will they do something weird? Will they drink it? Will they.. what else can you do with 12 gallons of sweet tea?
She pours in a gallon of citric acid and sugar, adds three bags of gummy bears, some marshmallows and whipped cream and drinks the whole thing.
Would poke it. This man does not know what sweet tea is. If told that this is sweet tea, no it isn't, sweet tea does not exist, tea is not cold and is not called sweet tea.