Review on 🍶 Swig Savvy 17oz 4 Pack Multi-Purpose Real Borosilicate Glass Bottles - PBA Free, Leak-Proof Stainless-Steel Caps for Beverages, Smoothies, Oils & More by Luciano Filpo

It is true that the plastic does not touch the contents of these bottles. The lid has plastic threads, but the inner top of the lid is stainless steel with a silicone gasket to prevent any contact with the threads. However, such a cover is a two-layer construction. When I tried to wet the hat to remove food residue, I found that the water had filled the space between the layers. Once the water was in it was very difficult to get out. If that doesn't work, you have bacterial breeding ground. Special care must be taken when rinsing food caps that may dry on them to avoid soaking the caps. In addition, the caps must not be thrown into a water bath for washing, they must be wiped, rinsed and placed face down to prevent water from entering the caps. When the bottles arrived and were unpacked for the first time, I found that many of the silicone seals had become stuck to the glass rims during storage. Removing the seals from the glass resulted in the seals breaking. I didn't realize that the floors were unusually thin. I hardly ever use ice cubes, so it's not dangerous for me.