This is an extremely effective powder for whitening and removing stains from wool Tallitot and Tzitzit. The box is good for 25 washes.

Instructions for use:
Hand wash:
Dissolve the prescribed amount into 5 quarts of warm water. Add the tallit, ensuring that it is completely submerged. Soak for two hours minimum, then wash the tallit with wool shampoo. Rinse well without wringing and hang dry in shade.

Machine wash:
Empty the correct amount into the detergent dispenser, and add wool shampoo. Wash with wool wash at low temperatures. Rinse without wringing and dry in the shade.