How much salt is needed to set tye dye?

To set tie-dye, you typically need about 1 cup of salt for every gallon of water used in the dyeing process. The salt helps to enhance the dye's adherence to the fabric, especially for cotton. It's important to dissolve the salt in the dye bath before adding the fabric to ensure even distribution. Always follow specific instructions for the dye you're using, as recommendations may vary.