1. For newly stained tomato juice, you can apply salt on the stain (let the juice adsorb on it) - moisten it with water - and wash it with soap.
2. Rub the dried tomato juice with vinegar - let it sit for 5 minutes - and then wash it with water.
3. Dissolve baking soda with water - scrub.
4. White fabrics can be soaked in bleach solution (3-5 sodium hypochlorite solution) for 1 to 2 hours and then rinsed with clean water.