Chocolate bloom can be repaired by melting the chocolate down, stirring it, then pouring it into a mould and allowing it to cool, bringing the sugar or fat back into the solution.
Yeah, ain’t nobody got time for that. It’ll melt while i eat it anyways.
It's mostly a concern if you're going to sell or gift them. I did this for some time, considering to do it again this Easter - it's laborious but a nice way to get some quick cash.
tl;dr: There are two types of bloom, sugar and fat. Both result from storing the chocolate wrong, leading to either fat or sugar crystallizing on the surface of the chocolate. And both types influence the texture and taste somewhat but are completely harmless from a health perspective.
Personally I don't understand how this can happen. Who stores their chocolate long enough?
We get so much chocolate at Halloween. I'm not a big candy guy (pastries for me, thank you), and I'm sure as hell not letting my kids have unrestricted access to caffeine and sugar. We almost always have some left when the next Halloween rolls around. If I have a piece in September it will likely have bloom on it.
This how I used to get free chocolate bars. When it was hot out the vending machine at my work would warm the chocolate bars causing them to bloom, Effem and complain about my Mars bars and they would send me a coupon for for each chocolate bars. I would do it every month to a different address.
I just used the work address and different unit number but it always came to the same place.this was 24 years ago so the didn't have Google maps to check.