Bought a 30 year old classic Coleman's canvas ten cheap (it's Canadian cousin actually). It is in great working condition, water proofing and zippers etc. and I thought convert it to a hot tent.
But, it has been sitting in the attic for 25 years so it have a strong moldy smell. I tried rinse, sun-dry and marinated it in baking soda, no luck.
Any other method/product I should try to rid the smell?