In the summertime, cold tea is a natural and refreshing drink, surely to be preferred to highly sugar-added beverages.
Tea leaves contain polyphenols and other healthy substances. Right polyphenols, however, are accountable for brown stains left on garments or tablecloth when we spill a glass of tea: these chemicals react with air oxygen to give quinones and other coloured chemicals, very persistent natural dyes that detergents generally are not able to remove from clothes.
The best way to remove such stains is to treat them with Bleaching Powder code D, which releases oxygen peroxide at alkaline pH and chemically breaks in small pieces dark quinones molecules; those pieces are then easily washed away by Laundry Detergent code H.
Stained clothes must be soaked with lukewarm or hot water; then the Bleaching Powder has to be sprinkled on the stain and left, on average, for half an hour. Finally rinse the clothes well with fresh water, or better wash normally by machine.
Let’s take into account some important aspects:
- the powder must be applicated filling precisely the stain width, otherwise a part of the stain may not be bleached;
- this product must be used with caution and for less time on delicate or worn out fabrics; it must be avoided on very delicate fabrics.
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