I find the easiest way for bottle femented sparkling wine is using encapsulated yeast .
get some prorestart yeast , it usually comes in 83 gram bags from more
wine.
http://morewinemakin...83_g_1_mesh_bag
weigh out 1 gram amounts of it and fill a plastic sparkling wine stopper
http://morewinemakin...gne_Stoppers_25 with a one gram of it , then push in a 1 inch fawcet screen (stainless steel , sold at plumbing or head shops I get mine here
http://www.shop.pipescreenz.com/) not to tight the yeast should be able to move around a bit.
so you now have a plastic sparkling wine cork with a gram of encapsulated yeast in it secured in place with a stainess mesh screen
when you have all your corks prepped .
fill a bucket of luke warm water and put the filled plastic stoppers in it . I think the yeast instructions call for some sugar in the water. prep properly or the yeast will fail , they need to soak in the sugar water for a while . please read the manufacuters instructions for the yeast prep , i'm working form memory .
with your champagne bottle place 2 - 3 beer brewers candies ( I use Coopers brand from my lhbs) in each bottle (prep these in advance of getting the plastic stoppers wet)
fill the bottles with your Dry clear , filtered and unsulfited and unsorbated base wine ( I usually have aged this wine with a big dose of biolees for that surlees character for 4 weeks before filtering )
pull one of your plastic stoppers out of the water , insert into the filled bottle , wire it up and place bottle on its side. repeat untill all bottles are done
once the candies are all disolved , swish the bottles around a bit as you place them in the case nose down. (stopper pointing down)
let sit for 4-6 weeks nose down at room temperature not too cool nor too hot , swirl the bottles every now and then and place nose down again.
you will have a nice bottle fermented riddle free sparkling wine.
I started writing an article on how to do this for winemaker magazine but have never submitted it.
you could get them really cold , slowly pull out the plastic stopper and recork but I don't . I just leave the fermenting stopper in.
and there you go the riddle of sparkling wine solved. all bubbles , no lees.
I've done this with grape , fruit and kit wines .