What Went Wrong – Top 10 Wine Making Mistakes #9

March 27th, 2009 by robin in wine making, wine making tips

We have discussed inadequate equipment, cleaning & sanitizing, failure to follow instructions, bad water, poor yeast handling, poor temperature control, adding sulfite or sorbate at the wrong time, and leaving out the Sulfite. The next topic that requires our attention is Not Stirring your wine.

On day one, the kit needs to be stirred very vigorously. This is because the juice and concentrate are very viscous, and don’t mix easily with water. Even if it seems that dumping the contents of the bag into the primary with the water has done the job, it hasn’t. The wine lies on the bottom of the pail, with a layer of water on top, throwing off any gravity readings, and making the yeast work extra hard.

When it comes time to stabilize and fine the wine, it has to be stirred vigorously enough to drive off all of the CO2 it accumulated during fermentation. This is because the dissolved gas will attach to the fining agents, preventing them from settling out. You need to stir hard enough to make the wine foam, and keep stirring until it will no longer foam. Only then will the gas be driven off so the fining agents can work. The most effective way to stir your wine sufficiently to degas it is by using a 3-prong wand and electric drill.

Tomorrow will be our last entry on the topic of top wine making mistakes – not waiting long enough.

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