I chilled the Beer chill sticks in the freezer for a few hours. I did already have beer in the refrigerator so they were cold. My husband enjoys beer so I put the chiller in the beer and he took a few sips. Yes it was cold because it was in the fridge. He let it sit for a long time to see if it still would be cold. The Beer chill sticks made the beer remain nice and cold.
The caps to the chill sticks fit on top of the bottle well. Even the top of the bottle remains cold. They are nice and easy to clean just rinse off and place back in the freezer for the next use. Great to give as a gift for someone who enjoys beer. They are 100% FDA compliant, BPA Free, and Eco Friendly. Durable and sturdy stainless steel is fast freezing. I received these chill sticks complimentary in exchange for my unbiased review and opinion. All words and opinions are my own.