If your tent is lightly soiled, you can usually clean it by simply wiping it down with a damp cloth. For more stubborn stains or heavy dirt buildup, you can set up the tent and hand wash it using a non-detergent soap, warm water, and a soft sponge or brush. Avoid using dishwashing liquid, bleach, or other harsh cleaners, as these can damage the tent's materials and waterproof coatings.
After washing, rinse the tent thoroughly to remove any soap residue. Hang it up or pitch it to dry in a cool, shaded area, making sure to avoid direct sunlight or high heat. Never machine-wash or dry-clean your tent, as this can damage the fabric and coatings. And remember, the best way to keep your tent clean is to take care of it while you're using it, and avoid setting it up in muddy or dirty areas.