A frequently asked question is whether ziplock bags are waterproof or not. It is known that bags are not waterproof, but many ziplock bags are suitable for storing liquid food products. The material and quality of the bag affects water permeability. Some ziplock bags have liquid sealing features and can withstand weather conditions, especially mud, snow and rain. Therefore, it is better that ziplock bags are not recommended for liquid foods, but water-resistant ones can be used for liquid products.