Hi folks -

Racked my gallon lot of sweet blackberry (Tasmanian recipe) tonight, and
it has a rather pungent aroma!

It was started June 22, transferred to secondary under an airlock June
29 and racked for the first time tonight. Taste and sniff test at that
time was normal, although a bit "thin".

Taste tonight normal for an immature wine.

It's the first off-beat behaviour in the dozen or so "country wines"
I've got moving toward bottling.

Any thoughts on what happened, and possible remedy?

Thanks.

Jack