It was a joke. See, you said glass jar topic closed, and then he said he was glad you weren’t a moderator, and then I was pretending that he said that because you said you would use glass, and not because you would have closed the topic, so I said I was also happy you weren’t a moderator because you were using glass and not for the real reason that he had said that.
Presifted or unsifted flour, in pantry in closed package; once opened, presifted: original package sealed with a clip and stored in fridge, for unsifted, in plastic sealed container in fridge after sifting.
Sugar in closed plastic container in pantry. These are items that get used up quickly in any case, see ChanieE above.