Red cabbage water itself is not known to have sedative properties that would make you sleepy. However, it contains antioxidants and compounds that may promote overall health and well-being. If you find it calming or enjoy its flavor as a part of a relaxing routine, that may contribute to a feeling of relaxation but isn't directly tied to sleepiness.
Red cabbage is grown not made
Distilled water mixed with red cabbage water will turn a bluish color due to the anthocyanins in the red cabbage affecting the pH of the solution.
Using a slotted spoon, lift the cabbage from the water, allowing the water to drain through the slots.
Boil red cabbage in water to make phenol red. This works well depending on how long you boil it will determine the strength of the solution.
Red Cabbage and Beetroot can be used but what else?
Cooking red cabbage in baking soda will make it mushy. Baking soda raises the pH level of the water, which breaks down the cabbage's cell structure, leading to a softer texture. While this can enhance the vibrant color of the cabbage, it compromises its firmness and can make it less appealing in terms of texture.
There is no such thing as purple cabbage juice because red cabbage juice is actually already purple, its just called red cabbage jucie.
Filtration
red cabbage is a good universal indicator you need a red cabbage hot water and a pestle and mortar put hot water into the mortar and crush the red cabbage leaves with the pestle the water should turn purple. your own universal indicator!
Pink or red
In order to make this kind of an indicator, you need: RED CABBAGE, A MIXER, WATER, STRAINER, ACID, BASE, BEAKER (or a glass). Now, take a few of the red cabbage leaves and put them in the mixer, after that, put water into the mixer. Now: MIX! When you mix, strain off the cabbage-leaf parts into a beaker and you're ready to go. If you pour hydrochloric acid, the juice turns red, if you put ammonia, it turns green, if you put a solution of sodium hydroxide, it turns yellow. Of course, these are all lab-grade chemicals. You can also use (Lemon) Citric Acid, Acetic Acid(Vinegar), Sodium Bicarbonate(Baking Soda)...Hope I helped..! :)
You will get a frothy red mess. The baking soda and vinegar will combine to produce carbon dioxide as the acid in the vinegar combines with the base in the baking soda. The red cabbage will will make it colorful, and the water will slow the reaction. On the other hand, red cabbage and vinegar will make a nice pickled cabbage.