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Why did the cabbage water turn purple when the red cabbage was boiled in the water?
Red cabbage gets its purple colour from a type of natural pigment known as an ‘anthocyanin’. Blending the cabbage leaves with warm water is a quick way to extract this pigment by making it easier for it to dissolve in water.
Why is my red cabbage turn blue?
As long as they are acidic they stay red, but when they become non-acidic they turn blue. When you sauté red cabbage, the acids evaporate off and it can turn blue. All you have to do is add lemon juice or vinegar to bring back the bright red color.
How do you make cabbage water blue?
The goal is to make the container of vinegar and cabbage water match the colour of Neutral pH (the cabbage water and tap water mix). If you overshoot and turn the mixture blue, try adding some more vinegar. Try neutralizing other acids and bases e.g. lemon juice, bubble mix etc.
What happens when you add vinegar to cabbage water?
Cabbage juice turns pink when you add an acid, such as vinegar. It turns blue, or even green, when you add a base, such as baking soda. A chemical reaction occurs when an acid and a base are mixed together.
What happens when you mix red cabbage juice with vinegar?
4. Add a little vinegar to the first glass of cabbage juice. Stir with a spoon and notice the color change to red, which indicates that vinegar is classified as an acid. All acids will turn red when mixed with cabbage juice.
Does cabbage turn water blue?
Red cabbage contains a chemical called anthocyanin. The chemical is blue in its neutral state, which is why the cabbage water will be blue after the cabbage steeps for a while. Anthocyanin will turn red when mixed with an acid and a greenish color when mixed with a base.
Can I eat blue cabbage?
Easy to add to your diet. Purple cabbage is an incredibly versatile vegetable. You can eat it raw or cooked, and it’s well suited to accompany a variety of dishes.
Can you eat cabbage that turned blue?
Red cabbage that has changed color overnight from red to blue is safe to eat. Red Cabbage along with other purple fruit and vegetables such as blueberries and purple carrots contain a group of compounds called Anthocyanins which change color with pH or the level of acidity or alkalinity.
How do you keep red cabbage from turning blue?
Red cabbages are easy to prepare. Strip off the outer leaves, wash, then slice into quarters, cut out the hard central core on each, then chop or shred. Lock in the colour by adding a touch of vinegar when cooking red cabbage in water. This stops the lovely deep purple hue from running.