I just put up my 1st batch. Sat.24th. Today 27 still no action. I used Muntons dry yeast. everything sanitized etc. put it in a cup with some clean water at 75 degrees, let it set for 10-15 min. added some cooled wort, while my wort was cooling. I saw a few tiny bubbles before I pitched it. Today still nothing, so I took a package of Coopers that came with the IPA I'm making, dissolved it and pitched it. when I opened the bucket there was very little foam on top. When I transfered it from my boil kettle to the bucket I poured it from about 3-4' up so I thought that should get the oxy in. Anyway, I pitched another package of yeast and put on the lid and rocked it a bit to mix the yeast in and the foam shot up into the airlock and now it's bubbling away. I think it just needed a stir. Will the extra yeast do any damage?