When to add salt to cooking water? (Slideshow version)
Stage 3/3 :
Let's compare times and temperatures in this diagram: the unsalted water in green, the salted water in red.Remarks
At the start of heating, the temperature of the salted water rises more slowly: after 3 minutes 30 seconds the unsalted water is already at 040°C (100°F), while salted water is still at 025°C (80°F).But then the two catch up and they take the same time to reach 100°C (210°F).
Another point: it seems, but I'm not really adamant about it, that salted water starts to boil at a lower temperature than unsalted, i.e. around 90°C (190°F) rather than 100°C (210°F).
And to drink?
We already know the time it takes to boil 1 litre water, measured in another experiment.We are going to use the same pan, heat source and water volume, but add salt and bring to the boil while measuring and comparing temperatures.