What happened to my Wine. Whoosh

[SniffTheGlove]

Hello All

I started a wine brew on Saturday afternoon using Lidi Red grape juice 4litres and 200g of Sugar and SN9 yeast. I put it into a 5l FV with an airlock. Sunday morning it was bubbling away when I read that I needed much more sugar than 200g, So I dissolved 300g of sugar into boiling water and then cooled it down and open the FV and poured it in. Whoosh went the grape juice and I got covered in foaming juice.

Any idea why I got this reaction? Can I still recover?

[oldbloke]

There's a lot of CO2 mixed in with the liquid, quite apart from what's bubbling out, and you suddenly gave it an easy way to make bubbles. Nucleation, I think it's called.

Stuff has come out. Most likely nothing bad has gone in. Carry on.

[SniffTheGlove]

There would of been a lot of CO2 only after 12hrs, wow I would not of thought so. Pretty energetic stuff this wine making. Thanks

[oldbloke]

There would of been a lot of CO2 only after 12hrs, wow I would not of thought so. Pretty energetic stuff this wine making. Thanks

It doesn't really need much to make a whoosh if it all comes out of solution at once.