Greetings. Last Saturday, I purchased the ingredients to make a Fat Tire ale clone. When I got home, I activated the smack-pack yeast and began to get the process rolling....then something came up and I had to postpone the beer making. I was going to start again Sunday, and that fell through as well. Then came Monday and didn't have enough time again. So, unless the world comes to an end, I am planning on finishing this today. I put the crushed grain in a platsic bag and set it down in the basement to keep it cool. The smack-pack yeast was also put down in the basement as well. Do you think the yeast will still work after sitting for 3 days, or should I just get another smack-pack and be safe. Thanks as always!!