Comment HOT for more info on how to make your own lacto-fermented hot sauce. There are several reasons that I prefer a ceramic fermentation crock over a glass jar: 1. They come with perfectly sized weights that make submerging your contents easy. This step is vital to preserve safely. 2. The water seal on top prevents air from entering, but allows the inside to burp itself. This also increases food safety. 3. They come in bigger sizes than glass jars so you can easily do bigger batches. I own a