Sponge the bag with the solution. Work on the inside of the bag and any mildewed outside part of the bag for a few minutes. It's a good idea to test a small spot before trying this method, in case it stains.  Place the bag outside under shelter away from direct light to air dry. If it is still there, repeat. If not, the bag can be used again.
اصنع محلولًا يتكون من مقدارين متساويين من الخل الأبيض والماء المقطر. امسح محلول الخل بقطعة قماش نظيفة ورطبة. عرّض الحقيبة للهواء. تحقق من الرائحة.