To hold the Nordic tipi fabric clean and nice is the best to avoid damage on the fabric. There are things that make the fabric dirty, but you can do some to prevent it. Here is what you need to know:
Making a safe fire also means it is less smoke and dirt around it. That’s a positive thing to the fabric.
Soot on the walls need not be washed away. A fire in the Nordic tipi gives a little soot, but you can make your fire soak the fabric as little as possible.
When you take down your Nordic tipi, you brush or shake away all loose dirt from the tent walls (leaves, grass, bird droppings, twigs and so on). It prevents damage on the fabric when storing the tent.
If there are stains you want to wash, please, first use lukewarm water. Chemicals will take off the impregnation.
Hard stains can be washed with soft green soap on the stain, and then be re-impregnated.
To avoid mold on the fabric, let the Nordic tipi dry thoroughly.