After eating fresh walnuts, wipe towels on the towel, there will be black stains, how can you remove it?
10% lemon water walnut juice stains at wetting, and then soak into the brine, wash rinse for second days.
With 15% acetic acid (vinegar vinegar can) wipe walnut juice stains, or stains soaked in acetic acid solution, then rinse with clean water for second days.
With the new juice, can sprinkle some salt, gently water wetting, and then soaked in soapy water for washing. Fruit stains slightly with cold water and wash in addition, a net wash, wash time, wash. Heavy pollution, can dilute ammonia (1 ammonia washed 20 parts water organic acid in fruit juice), wash with soap.
