For the most part, a cup means a cup â just measure out a cup of grapes or a cup of chopped carrots, and ta-da, you have your measurement. There are a few exceptions, though. 1  When it comes to salad, a cup is not a cup. 2  It takes 2 cups of leafy greens to equal 1 cup of vegetables.
You should never rinse with hydrogen peroxide to whiten your teeth! This will not only not whiten your teeth, but you can do significant damage to your gums and lining of your mouth. You can also disrupt the normal flora of bacteria in your mouth. If you want to whiten please see your dentist for options.
But a benefit of the foaming action is that hydrogen peroxide acts as a cleaning agent, bringing any embedded dirt up to the surface. H2O2 is present in trace amounts in honey, which is why before the advent of modern chemical preparation methods, honey used to be used for dressing wounds.