It is better if you hand wash you barong tagalog with water diluted with small amount of mild detergent that is completely dissolved in the basin. Use warm water for natural-colored barongs and cold water for all the other barongs. Use a soft toothbrush to scrub off the stubborn dirt especially on the collar, underneath the cuffs, and arm holes and then rinses it with an upward and downward motion on water. Do not twist your Barong Tagalog. Let it drip dry by laying it flat so it will not create too much crease. Iron the Barong Tagalog while it is still damp in a moderate heat to retain its original shape.
