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Opened Carboy - lots of pop!

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pbacbell

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I'm still fairly new to winemaking, so please excuse if this is a dumb question. I have a Super Tuscan that has been in a carboy for over 3 months. I opened it tonight to take a sample. When I grabbed the stopper, it POPPED! Lots of CO2 escaped. Wine is clear. Should I degas again? Will I ruin it? This has never happened to me before.
 

sour_grapes

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I assume you had it sealed with a solid stopper? That is why I keep it under airlock. Others use a one-way silicon bung.

If it were mine, I would degas it (by your preferred method) and put it under airlock for a while.
 

mainshipfred

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I can only assume Paul's assumption is correct. Hard to believe a wine with an air lock would pop but really if it was solid and still degassing I'm surprised the bung was able to hold the pressure without coming loose.
 

crushday

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Was the pop from vacuum? It has gotten colder which will cause your wine to contract thereby creating a vacuum you’d break the seal of when attempting to get a sample. In this case, do not degas again. Nothing else makes sense to me.
 
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