im just started. My partner and i love a good chardonnay sparkling . I thought by purchasing a brew fridge and carbonatting our favourites to be on tap that would be the go.Im not to familiar with it as ive also asked several brew shops that say they dont know how it would go?
Really im lost but am willing to learn.
Can you post the favourite sparkling so we have an idea if you're wanting to replicate aged Champagne or sub-$10 sparkling white?
A huge part of the style of good champagne is the yeast autolysis character which is the bready/briochy/yeasty character that comes from long term ageing on yeast solids from the ferment in bottle (like >2 years, 5 years is more like it).
If you just like chardonnay and want it to be fizzy, then you could just carbonate it in keg and serve out of a tap.
From experience, you'll need about 100kpa at 3 degrees to give you equivalent carbonation. You'll also need a lot of line and a flow reducing tap to not just pour a glass of froth - its a lot harder to balance a setup like that than conventional ale dispensing.
If you want a fancy champagne style on tap, I would suggest you're going to spend a lot more on replicating the style than just looking at greys-online and picking up something at auction, or even buying it at a big chain like 1st choice.
If you reallllly want to make a champagne, you'll need to start with much lower alc and higher acid than still chardonnay (you want about 10.5% Alc/Vol to start), so you'll need to buy a very light unoaked style.
You'll need to make sure it has no free So2 - the easiest way to do this is to soak it up with an active yeast culture (otherwise you've got to add an exact amount of Hydrogen Peroxide etc etc).
So make up a huge yeast culture with something strong - EC-1118 is okay but you can get better - DV-10 is good, UV-43 is better.
Add 1/2 to your base wine, add 5g/l of sugar, leave it 24 hours.
Then add the rest of the yeast, a further 20g/L sugar, bottle or keg it off.
Then ignore the wine for 2-4 years.
Filter from keg, or disgorge from bottle (shake solids into the neck of the bottle, leave neck in an ice bath to freeze the solids, invert, remove the top and then re-cap after topping up).
If you're going to bottle, you need champagne bottles - these can deal with the 6 atmospheres of pressure required.
Happy to answer any more questions (I'm a winemaker and make a lot of sparklings).
Chris