In the comments it states you can hold other items and yes, use for storage as well. I have similar bags I use to hold lingerie and wash them in the washer in the bags. I also use them for items other than food as mentioned. No problems. give them a try. Although I too was disappointed they were of polyester, I find that some organic cottons and/or recycled materials will be abrasive, grate on the delicate times, and "thread", reminding me of dental floss when it shreds. I do not like poly and cannot wear it, it does seem serviceable when using it for these bags, and poly is recyclable.