void NewFermentable()
{
SelectedFermentable = new FermentableViewModel(new StockFermentable());
}
public bool Equals(FermentableViewModel other)
{
if (ReferenceEquals(null, other)) return false;
if (ReferenceEquals(this, other)) return true;
return Equals(other.Name, _fermentable.Name) && other.Pppg == _fermentable.Pppg;
}