When rehydrating your dehydrated Eden starter, we always suggest using an unbleached bread flour (not all purpose) because it has a higher protein percentage. Bleached flour has chlorine and will slowly but surely start killing off the cultures in your starter. We personally suggest getting King Arthur Bread Flour. If you can’t find that brand try to get one that has a 12% protein percentage or higher.  The water you’re using matters. If you’re using tap water (usually full of chlorine) it will do the same thing as bleached flour. Filtered waters like distilled or reverse osmosis are not beneficial either, because they don’t have the necessary minerals to help starter cultures thrive. So if you’re using those waters and aren’t seeing a lot of activity by Day 3, your cultures might have started to die off. We always suggest using filtered spring water, whenever possible.