The only thing standing between you and your plan to rule the world is superman? Despair no more, just follow this Instructable in order to succeed. Because as you probably know Kryptonite is one of the few things known to hurt or kill superman.
OK, ok I'm exaggerating a bit... In this Instructable I'm going to show you, how to make candy that "glows" under UV light and looks like the fictional mineral from the superman myths.
For some time now, I've been playing around with Fluorescein, which is a dark red powder soluble in water and alcohol. It is commonly used as a fluorescent tracer. Though it is used e.g. in eye drops and biochemical research, it can cause adverse reactions (like nausea or vomiting). Because of this, even though only very small amount are needed I don't think it is safe enough for candy (and it is not easy to get).
Sadly most phosphorescent substances aren't classified as "food grade" (even though they are not toxic). In most "glow under a black light" food Quinine is being used, which is in Tonic Water (in very small quantities). In my opinion for candy it is not suitable thought, because of two major reasons: 1. the bitter taste and more importantly 2. it's melting point is very close to the temperature you will need to make the candy.
So I had to find an other easy to get food grade chemical with a high melting point. My solution: Riboflavin, better known as vitamin B2 or additive E101. It can be found in most vitamin pills, is not toxic and fluorescents yellow under UV light (and even under direct light). The only set back is, that it is destroyed by exposure to light, but in our case it should matter because the process is pretty slow. Btw. that is the reason why you should buy your milk rather in opaque containers and not in glass bottles.
OK enough with the boring science stuff, lets go kill superman ;-)
Becky Stern from MAKE Magazine made an amazing video, on how to make the candy:
OK, ok I'm exaggerating a bit... In this Instructable I'm going to show you, how to make candy that "glows" under UV light and looks like the fictional mineral from the superman myths.
For some time now, I've been playing around with Fluorescein, which is a dark red powder soluble in water and alcohol. It is commonly used as a fluorescent tracer. Though it is used e.g. in eye drops and biochemical research, it can cause adverse reactions (like nausea or vomiting). Because of this, even though only very small amount are needed I don't think it is safe enough for candy (and it is not easy to get).
Sadly most phosphorescent substances aren't classified as "food grade" (even though they are not toxic). In most "glow under a black light" food Quinine is being used, which is in Tonic Water (in very small quantities). In my opinion for candy it is not suitable thought, because of two major reasons: 1. the bitter taste and more importantly 2. it's melting point is very close to the temperature you will need to make the candy.
So I had to find an other easy to get food grade chemical with a high melting point. My solution: Riboflavin, better known as vitamin B2 or additive E101. It can be found in most vitamin pills, is not toxic and fluorescents yellow under UV light (and even under direct light). The only set back is, that it is destroyed by exposure to light, but in our case it should matter because the process is pretty slow. Btw. that is the reason why you should buy your milk rather in opaque containers and not in glass bottles.
OK enough with the boring science stuff, lets go kill superman ;-)
Becky Stern from MAKE Magazine made an amazing video, on how to make the candy:
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Signing UpStep 1: What you need
what you need
- 250 g sugar
-
A vitamin B2 pill (just ask in your apothecary, or on amazon.com
(half a pill is enough)) (the one I used had 15mg per capsule and I used three capsules, don't use more than that, it will not enhance the effect)
- green food colouring
- mint oil (or any other type of oil to give your candy a nice taste)
- aluminium foil and/ or powdered sugar and e.g. quartz crystals (to make the forms)
- UV light
- a small pot
- candy thermometer
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then add any of the following
*malic acid
*tartaric acid
*citric acid (easiest to fins at health food/candy/baking stores)
use a 1/4 teaspoonof citric acid and put in during the flavoring stage and mix well.
SOmehow I imagine Kryptonite should be toxicly sour and not toxicly minty...no offense BrittLiv.
I'm definitely gonna make these and I'm gonna make them toxicly sour. thanks for the reipe!
You said you can use any type flavoring, correct?
Wenn du mal nach Brasilien kommst, komm mal bei mir vorbei ;)
grüssy
Vieleicht am Januar 2012 für einen Winterkurs.
;)
I voted to you ;)