After the dishwasher cycle, the combination of the expanded sleeve from the heat, and the water in between the sleeve and reservoir should make It very easy to remove the sleeve. Place both the reservoir and the sleeve on a drying rack face down and allow to dry overnight for best results. Inserting the bottle back into the sleeve before both items are dry could result in unwanted slippage, so it is best to wait until the unit is completely dry before reassembling. Once both parts are dry, simply set the sleeve on a flat surface bottom down, and slide the reservoir down into the sleeve. The natural elasticity of the sleeve will keep It in place, and you'll be ready to roll in no time!