Reusable food storage bags can be cleaned like any other dish, with soap and water. However, when washing by hand, be sure not to use abrasive sponges or scrubbers as they can damage the bag. Take care to make sure you get any crumbs or other debris out of the corners and folds, which could lead to mold if left. A soft-bristled brush can be helpful.
https://www.washingtonpost.com/food/2022/01/16/how-to-clean-reusable-food-storage-bags/?utm_source=rss&utm_medium=referral&utm_campaign=wp_lifestyle How to clean reusable food-storage bags