public void CompleteHoldingVesselProcessStep(string brewNumber, string fieldName, string fieldValue)
        {
            //Brew brew = GetBrew(brewNumber);

            if (holdingVessel.Brew.BrewNumber == brewNumber)
            {
                holdingVessel.SetEndTime(fieldName, fieldValue);
                Notify();
            }
            else
            {
                Console.WriteLine("Incorrect Brew! Dispatched Brew does not match brew in Holding Vessel!");
            }
        }