Place the silk in a washer. Set the washer to cold water options and then change the setting to "Delicate." Never wash silk with the regular settings or hot water, as these can damage the material.
Add a mild detergent to the wash. Cleaning silk requires mild detergents that will not dry out or damage the material. Start the wash.
Hang the silk item to dry in the shade, or place it in a dryer on a delicate cycle without heat.
Smell the silk when it is dry. Repeat the cleaning process as many times a necessary to remove the smell. According to the HeartStrings FiberArts website, the only way to remove the fishy odor of silk is to wash it until the gum still clinging to the silk is removed.