Extremely easy to use, pre-reduced indigo makes setting up an indigo vat almost effortless! This kit, which makes a 3 gallon indigo vat, contains: 40 grams pre-reduced indigo, 40 grams Thiox, 200 grams soda ash, 1/2 ounce Low Foam Synthrapol and directions. This specially formulated indigo is already 60% reduced, allowing you to use the provided soda ash instead of lye in the dye vat. There is no need to paste up the indigo granules because they dissolve easily in water. Note: while Indigo and the chemicals used are comparatively safe and non-toxic, it is best to treat them all with caution. Wear rubber gloves and respirator to minimize contact. Always work in a well ventilated area. Utensils used for dyeing should never be used for food preparation.