private String calcStepType(double temp) {
		String stepType = "none";
		// less than 90, none
		// 86 - 95 - acid
		if (temp >= ACIDTMPF && temp < GLUCANTMPF)
			stepType = ACID;
		// 95 - 113 - glucan
		else if (temp < PROTEINTMPF)
			stepType = GLUCAN;
		// 113 - 131 protein
		else if (temp < BETATMPF)
			stepType = PROTEIN;
		// 131 - 150 beta
		else if (temp < ALPHATMPF)
			stepType = BETA;
		// 150-162 alpha
		else if (temp < MASHOUTTMPF)
			stepType = ALPHA;
		// 163-169, mashout
		else if (temp < SPARGETMPF)
			stepType = MASHOUT;
		// over 170, sparge
		else if (temp >= SPARGETMPF)
			stepType = SPARGE;

		return stepType;
	}