Sulphites and stabilisers in Sparkling wine/ Champagne

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Ebob01

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I get the basic process of sparkling wine, so make a base wine and leave to clear.

Then at bottling state add rehydrated yeast and some sugar but not sulphites or stabilisers.

Leave to ferment in the bottle then go through the process of riddling and disgorging by leaving the bottles upside down and freezing the neck of the bottle.

Where I'm a little unsure is after disgorging should sulphites and stabilisers be used.

I've seen that sugar or dosage is often added at this stage for taste. However without the addition of stabiliser then surely this would simply be fermented again in the bottle, unless relying on all the yeast being removed by clearing and disgorging which doesn't seem very reliable.

The other thing is surely sulphites must be added before re-corking to stop the wine oxidising and spoiling, particularly if it is intended to be stored for more than a few months before drinking.

The other thing which puzzles me is that I have seen Champagne is left on the lees in the bottle for years however surely no sulphites are added during bottling or else it would not reliably ferment. What is to stop it spoiling in the bottle? It's it simply that extreme caution and hygiene must be exercised or is it that the presence of the fermenting yeast in the bottle means the bacteria won't take hold....?

If be interested in people's homemade sparkling wine methods.
 
No you dont NEED to use sulphites.
If you do chances are you will taste it.
The sparkle brings out ANY off tastes or chemicals.
Use sorbate or non fermentable sweetner
Better still drink it bone dry. (you can get to prefer it that way)

In commercial champers
The extra sugar is added along with a very strong brandy,The combination is known as "liqueur d`expedition"
The high alcohol prevents refermentation.

The residual yeast in the bottle is supposed to add character after a while.But i allways matured mine clean.

Good hygene is essential but to answer your question the combination of alcohol,Low ph,High co2 pressure inhibits spoilage.
But in Victorian times most champagne actually spoiled, Futher adding to the price.

You must use a champagne yeast for best results.
 

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