3 Reasons why your Palo Azul isn't turning blue
There are 3 reasons...
Before anything, try to shine a flashlight on the palo azul tea or put it in a place where it can absorb light. Palo azul’s blue color is produced by the phenomenon of fluorescence, which means that it absorbs light (or electromagnetic radiation) and emits an incident radiation of a shorter wavelength.
This is why your palo azul tea might not look blue sometimes, you have to let it absorb light :)
Here, you can see how palo azul's fluorescence shines intensely because of the sunlight which feeds it.
* Fun fact: This same phenomenon that gives palo azul its blue color is also what gives Aurora Borealis its extraordinary beauty. Aurora Borealis also absorbs sunlight and other energy from outer space through Earth’s magnetic field.
It captures energy particles from the Sun and when these particles reach Earth’s magnetic field, they strike the atoms with such force that its electrons are excited into a higher energy state.
“It's this microscopic turmoil, miles above the Earth's surface, that gives the northern lights their eerie glow.”
If you tried shining light onto your palo azul and it still isn't blue, then there may be 3 reasons why your palo azul does not look blue.
1. The most common reason, is that you used acidic water. a study titled "Structure and Formation of the Fluorescent Compound of Lignum nephriticum", found that “the fluorescence intensity of the aqueous solution (palo azul) depends strongly on pH, as noticed also in historical times by Kircher and Boyle.”
Also, "The Fluorescence Foundation: A Short History of Fluorescence" mentions that Robert Boyle “discovered that addition of acid abolished the color and that addition of alkali brought it back.”
So...if you want your palo azul to look blue, make sure to use alkaline water!
2. Another reason might be that you didn't use enough palo azul for the amount of water that you prepared. In this case, you can try adding more palo azul and boil it again.
3. Lastly, it could be that the concentration of flavonoids in the palo azul tea that you purchased is too low. Flavonoids are natural products which are synthesized by plants to fight off bacteria and radiation. They are also responsible for palo azul’s (and many other plant's and animal's) fluorescence.
If this is the case, you should probably buy your palo azul from a different source next time.
* Here's a bonus tip: If you're palo azul turned out too dark and you want it to look like the pictures above, dilute it with water to have a lighter, more intense blue.
Our MagickTea palo azul is sourced exclusively from palo azul farms which we have personally and carefully tested, so it is guaranteed to have a high flavonoid concentration :)
What are you waiting for?
Experience palo azul's fluorescence and you'll be amazed by the most magical tea in the world!