diff --git a/Control/brewpi/controller.py b/Control/brewpi/controller.py
index d338cba..96368a2 100644
--- a/Control/brewpi/controller.py
+++ b/Control/brewpi/controller.py
@@ -39,6 +39,10 @@ class Controller():
 		self.is_pause = False
 		self.is_restart = False
 		self.receipe = None
+		self.theta_sm = Smoother(1.0)
+		self.heatrate_sm = Smoother(0.5)
+		self.theta_err_sm = Smoother(1.0)
+		self.heatrate_err_sm = Smoother(1.0)
 
 	def log(self, s):
 		now = time.time()
@@ -132,8 +136,6 @@ class Controller():
 		# The loop
 		# ------------------------------
 		doLoop = True
-		theta_err_sm = Smoother(0.5)
-		heatrate_err_sm = Smoother(0.5)
 		while(doLoop):
 
 			time_start = time.time()
@@ -144,15 +146,18 @@ class Controller():
 			# -----------------------------------------
 			self.stirrer.process()
 			self.plant.process()
-			theta_ist = self.plant.getTemperature()
 
-			heatrate_ist = 60/self.dt * (theta_ist - self.theta_ist)
+			theta = self.plant.getTemperature()
+			theta_ist = self.theta_sm.process(theta)
+
+			heatrate = 60/self.dt * (theta_ist - self.theta_ist)
+			heatrate_ist = self.heatrate_sm.process(heatrate)
 
 			theta_err = theta_soll - theta_ist
 			heatrate_err = heatrate_soll - heatrate_ist
 
-			theta_err_sm.process(theta_err)
-			heatrate_err_sm.process(heatrate_err)
+			self.theta_err_sm.process(theta_err)
+			self.heatrate_err_sm.process(heatrate_err)
 
 			if self.ovenState == ovenStates.NOP:
 				if theta_ist < theta_soll:
@@ -160,7 +165,7 @@ class Controller():
 
 			pid_err = 0
 			if self.ovenState == ovenStates.HEAT:
-				pid_err = heatrate_err_sm.get_y()
+				pid_err = self.heatrate_err_sm.get_y()
 				pid_params_acqu = self.params['Heat']['Acqu']['Pid']
 				pid_params_track = self.params['Heat']['Track']['Pid']
 				pid_thresh_acqu = 0.2
@@ -171,7 +176,7 @@ class Controller():
 					self.timer_ist = timer_soll
 
 			if self.ovenState == ovenStates.HOLD:
-				pid_err = theta_err_sm.get_y()
+				pid_err = self.theta_err_sm.get_y()
 				pid_params_acqu = self.params['Hold']['Acqu']['Pid']
 				pid_params_track = self.params['Hold']['Track']['Pid']
 				pid_thresh_acqu = 0.2
diff --git a/Control/brewpi/mass.py b/Control/brewpi/mass.py
index 71b9569..fc8b8cd 100644
--- a/Control/brewpi/mass.py
+++ b/Control/brewpi/mass.py
@@ -39,4 +39,4 @@ class Mass(APlant):
 		return self.P
 	
 	def getTemperature(self):
-		return self.theta + self.theta_amb + self.kn*np.random.normal(0,1)/sqrt(12.0)
+		return round(self.theta + self.theta_amb + self.kn*np.random.normal(0,1)/sqrt(12.0), 1)