I bought this product based on some reviews I read that said they were leak proof. I bought these for making iced tea and every time I give them a little shake to fluff it up they flow out the top and out of a part of the handle that screws onto the container. Also, I don't like the fill lip on the containers as it's too stretchy and causes some of the liquid to splatter onto the countertop and I have to wipe it off every time I pour from these containers. I recommend finding something else if you want to do something that requires shaking with these containers when they leak.
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