I made my 1st starter on Sun night, boiled the water and malt for 15 minutes, let it cool down, added liquid yeast( which had swelled) and now it is Tuesday. I swear I never saw any activity out of it that I could tell. What should I be looking for exactly. Also, I am brewing tomorrow. Think the yeast is still viable? Help! Oh, I also kept it shook up as much as possible. When I did, it did foam some for a while.