Wool pressing mat question
Upon seeing a recommendation found here I purchased a horse pad 100% wool from the recommended company. It works wonderfully used it quite a while, then noticed some gunk on my iron and discolored places on my mat. I always use high heat and steam. What am I doing wrong to mess up my Matt and get stuff on my iron. I am considering buying another one I just need some advice from other users for this type of wool mat. Please help. Thank you.