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igor2003 -> RE: just how little laundry soap can you get away with an still have clean clothing? (8/28/2010 10:26:57 AM)
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I used to work for a place that sold water conditioners etc. Part of what I learned there was a little about how soaps and detergents work. The soap surrounds the dirt and oil particles which helps to "lift" the dirt out of clothing or hair or off the skin. When the soap doesn't have any dirt to surround it then suds up and creates lather.
If you are getting much in the way of suds or lather you have one of two things. Either the soap you are using is not working (which does sometimes occur) or you are using too much soap and wasting it.
If you read shampoo bottles it will usually say to use the product twice. Use it once, rinse, and re-apply. It is that second application that gives you that "thick, rich, lather" that the commercials talk about, right? The reason you are getting all that "thick, rich, lather" the second time and not the first is because the first time was doing the actual work and getting out the dirt and oil, and the second time might give you the thick, rich, lather, but that is about ALL you get...and it gives the COMPANY twice as much profit!
So a good rule of thumb is that if you are getting very much suds or lather with any of your bath, laundry, or dish soaps and detergents then you are most likely either using a soap that doesn't work or you are using too much. How much to use is going to vary from brand to brand and partly depend on how "hard" your water is. Hard water is going to need more soap or detergent than soft water. So just pick a brand and experiment with it.
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