> Dyes must be "bloomed" before use.
It does not define blooming. I still have no idea what that means.
Maybe if you're an expert in this stuff already then it all makes sense. But I'm already lost when it starts by talking about blooming -- and then once it gets to aluminum salts, and strongly emphasizing that it's not elemental aluminum (which matters to the reader why...?), I realize that this is not written for the layperson.
> Dyes must be "bloomed" before use. In their unbloomed state (i.e. in the jar) they are different color than in use. For example, our Bright Green Dye is brown in the jar, then turns a vibrant bright green when bloomed in water.
It does a pretty good job, together with the rest of the article, explaining that blooming means letting it dissolve in water, at which point the color changes.
I'm not familiar with dyeing at all, but "blooming" is used in a bunch of other contexts that mean similar things, e.g. "coffee blooming" (adding water to freshly ground coffee), even things like "algae blooms".
> Blooming is the process of adding your bath bomb dye to hot water and mixing it with sodium bicarbonate
So no, it's not just dissolving it in water. It's dissolving it in hot water and adding an additional totally separate chemical.
So no, the article does not do a "pretty good job" at explaining. It doesn't explain any of that.
> Dyes must be "bloomed" before use. In their unbloomed state (i.e. in the jar) they are different color than in use.
With the evident meaning: "bloomed" -> out of the jar, in the water.
But blooming means precipitating the dye in whatever solution it will be in, usually using a salt like sodium bicarbonate.
[EDIT] The Wiki page on lakes makes it clearer: https://en.wikipedia.org/wiki/Lake_pigment