For yeast that will ferment more quickly, beer yeast starter kits and nutrients are available from MoreBeer! to better enhance the home brewer's ability to create clean flavors and beer than will attenuate reliably (attenuation is the percentage of original sugars that has been converted by the fermentation process). Yeast nutrients are important to all fermentations. Beer yeast starters and nutrients are recommended for recipes that will have a high starting gravity (S.G. exceeds 1.065). Yeast starter kits are available from MoreBeer! in sizes of 500 ml, 1000 ml and 2000 ml. White Labs Yeast Nutrient is designed to improve the health of yeast and to improve fermentation and re-pitching performance. Wyeast Nutrient will help the growth of yeast and complete fermentation.