[bierview]

I always use it for my starters.  My question is, can you use too much?  I find myself dumping a teaspoon into my starter boil.  Never had any problems but I thought I would run the question by everyone.

[HoosierBrew]

I always use it for my starters.  My question is, can you use too much?  I find myself dumping a teaspoon into my starter boil.  Never had any problems but I thought I would run the question by everyone.

Sure you can. There's a threshold for taste for pretty much anything - exactly what that is for nutrient is anybody's guess. IMO there's no need to use more than Wyeast states - I use the 1/2 tsp for 5 gallons.

[ynotbrusum]

I know an award winning lager brewer that expressly has it listed as an ingredient in his Helles recipe!  So, I assume it must have a taste threshold - and I use it every time FWIW.

[hopfenundmalz]

Some of the trace elements are needed for yeast health, and if you go too far over that trace level it becomes toxic for the yeast.