Review on 🧼 ALINK 16” Long Bottle Brush Cleaner: An Ultimate Solution for Washing Wine, Beer, S’Well, Decanter, Kombucha, Hydroflask, Thermos, Glass and Long Narrow Neck Sport Bottles by Amy Maeva

I bought this brush to clean the thermos as per the description. The bottom of the thermos is the most difficult to clean, where residue can collect. In the photo of the brush you can see that the bristles extend past the metal mount, so I figured it would be effective at cleaning the bottom of the thermos. Instead, most of the bristles on the brush walk away from the metal mount and don't reach the bottom of the thermos to clean it. The few bristles that protrude beyond the metal bracket are so weak that they cannot clean anything. This brush should not be advertised for cleaning thermos flasks.