Processes for effecting the dechlorination of tap water added to beverages
US5192571A · kind A · utility
Inventor
Key dates
| Filing date | Feb 6, 1992 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Feb 6, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47J31/08
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
Thiosulfate in anhydrous form is added in minute quantities to beverages such as soft drinks, coffee and tea, or food mixes wherein tap water is added in quantities not greater than about two quarts and preferably not greater than about one quart, to neutralize or destroy chlorines or chloramines in the water, such neutralization or destruction taking place almost instantaneously and, in any event, in a length of time not greater than about twenty seconds or, for most beverages, not greater than about three seconds, depending upon the pH of the beverage or food. The thiosulfate may be added directly to the beverage or to the water by metering apparatus or may have been previously applied in metered quantities to filters for the beverages including tea bags or may be mixed with syrup, powder mix, instant coffees or teas, coffee grounds or tea leaves, or may be encapsulated with a food grade material which is readily dissolvable in water. Because of the rapid reaction of the thiosulfate with the chlorines and the chloramines, the neutralization or destruction of same is essentially complete before a person commences to consume the food or beverage. The thiosulfate may be applied in p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.