Reply from Bramble Berry
Hi Bridget! I'm so glad you like the bottles! When cleaning your bottles, it helps to fill them up about 3/4s of the way full with water. Then, pop the top on, put your finger over the opening and give them a good shake. That should help loosen the soap inside. If that soap is still sticking, you can fill the bottles up with warm water and let them soak overnight. Then, give them a shake. We also have a bottle cleaning brush in the Soap Lab that helps us reach any stubborn soap inside. I'll be emailing you personally to discuss this!