On Jan 29, 12:43 pm, michael wrote:
... When tasting the
wine from my 1 gallon glass demijohn,when full the wine taste is only
so so.After transferring it to stoppered carafes (like bottling)for
drinking it gradually improves quite significantly over a week-and now
tates very good.Does anyone understand this effect?

The wine is young, tight, and tannic. It needs to "open up". A little
oxygen before consumption can help soften the tannins and allow the
fruit to express itself. Age will also mellow the tannins.

The current condition of the wine is evidence that all is well.

Greg