In the past, herbal liquid detergent was in regular use but with modernization this traditional indigenous knowledge depleted and at present is in use to a limited extent in some rural pockets of Shivalik hills. Dried maize (Zea mays Linn.) stems are burnt to ash and are put into a bamboo basket with a bottom layer of paddy straw. After pouring boiling water over ash, herbal liquid detergent is obtained as a final product. It is eco-friendly and a classic example of sustainability concept.
Rawat, Dhiraj S. and Kharwal, Anjna D.
"Indigenous Traditional Method for Making Liquid Detergent “Chhoa” from Zea mays Linn. in Shivalik Hills (Himachal Pradesh), India,"
Ethnobotanical Leaflets: Vol. 2010
, Article 2.
Available at: http://opensiuc.lib.siu.edu/ebl/vol2010/iss1/2