From ChatGPT

reviews on the canisters say they are not air tight.Once opened flour should be stored in an air tight container. Buyers love the canisters for a variety of reasons.

I'd store things that don't need to be contained for consumption if you love the look.

Thanks! yes,, I have read similar things. Yet, when I called customer service, the reps I spoke to said they can be used for it. I am hoping to maybe get some first hand experience from an HOUZZ members that perhaps may have rhem as well and use it to store flour and sugar. I appreciate the feedback so far with the info you found!

IMO it depends on how long you store the flour . I store my flour in the freezer and only store in a canister the amount I will use in a short time so for me no issue with these and they are beautiful I must say. The sugar is no issue unless it is brown sugar in which case it needs air tight and you can get a little sugar bear that helps keep it soft,

Those deserve something better than basic flour and sugar that could be stored elsewhere? : ) Like what?

Mmmmmmm Coffee, A couple varieties of teas.....

or.......

High end candies, chocolates, and mix with colorful low end such as M and M's

Or......

I'd want them in a bath, on a beautiful vanity. Cotton balls, Q tips. beautiful small soaps....etc

As to brown sugar, ^^^

When will Domino or other get smart, and package this stuff in one time use small sizes. I mean a box of a dozen - 6 half cup, 6 1/4 cup. Something like that. Annoys the daylights out of me.

I agree about the brown sugar Jan. I think pretty canisters for mundane stuff is nice if you must have that stuff on your counter . I have large Ikea canisters I have had for 30+ yrs glass but lids not that pretty but all in drawers in my kitchen baking area so no need for pretty .

I have my flour and sugar in decorative canisters, but I use ziploc bags inside the cannisters. I had a problem with ants a few years ago, so nothing in my kitchen is in anything that ants could get into. Everything is either in airtight glass or plastic with screw-on lids or in ziploc bags.

^^^^A few weeks ago, I had some ants on my extended ledge behind my kitchen sink (for some reason, I cannot remember the name for a casement window that extends out because of a deep ledge over the sink). This was the first summer that I’ve had ants - luckily, they were just around the sink area (all my canisters + food items are in the pantry).

Using ziploc bags inside canisters is a great idea if you have decorative ones on your counter. I wouldn’t purchase the ones you’ve shown unless they will be displayed on your countertop vs. hidden away inside a pantry.

Good idea--they are very beautiful.

Where do you live? Region/climate will make all the differance in this decision. Would I use them in Florida-no. Here in the northern midwest yes.

Im in the northeast ( NY) so i get all 4 seasons- but we have central air in our home, , so it is temperature controlled