Can you boil water to get salt out? The complete guide to desalination
                                
                                
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                                    4 min read                                
                            
                                According to the National Oceanic and Atmospheric Administration (NOAA), seawater contains an average of 3.5% salt, a concentration too high and dangerous for human consumption. For this reason, you cannot simply boil water to get salt out, as the salt remains behind while the water evaporates.