Im going to be starting this recipe soon and I have montrachet and pasteur champagne yeast at hand and was wondering which one I should use. Im thinking more towards the champagne but would like some advice from someone who has done this before.. Also I noticed the concentrate has Sulphites in it and was wondering if anyone has had problems with fermentation???I have done concord twice but i dont remember if it is sulphited or not. If its a low amount im sure it will be fine, Im thinking about dumping the juice in first and then adding my hot sugar water to try and steam some of the sulphites out...anyways cheers...