Question from Lina

I recently purchased a fabric from a credible online store and have been ordering from them for years and years. This was a surprising experience so I am hoping maybe you may be familiar with how this could happen.

I purchased organic natural thermal fabric. It had a sulphur odor during the washing cycle and the drying process seemed to intensify it. I washed this fabric 3 times!

Is this a sign that they used pesticides or contaminated water during the process of the fabric? Are you in any way familiar with this type of odor emanating from organic cotton particularly un-dyed fabrics?