I am making a starter of London ESB for a Porter of 1.055. I only had a two liter Erlenmeyer for the stir plate. I had a smack pack produced in May. Mr. Malty suggested a two liter starter. I also had a smack pack of ESB made in Jan. Mr. Malty wanted to use 4 or 5 liters for one pack. I used both smack packs in a 1.7 liter starter. There is a lot of yeast being produced. So, will the yeast be viable as in growth phase and will it be to much to pitch in a 5 gallon batch?