Use a separate sketch to load EEPROM.

boil_kettle/boil_kettle.ino

@@ -14,7 +14,6 @@
 
 // My Includes
 #include "config.h"
-#include "eeprom_init.h"
 #include "button.h"
 #include "slowPWM.h"
 
@@ -74,7 +73,6 @@ LiquidScreen home_screen(KettleState_line, kettle_power_line);
 LiquidMenu menu(lcd);
 
 void setup() {
-  StoreEEPROM();
 
   unsigned long lastRun = millis() - UpdateInterval;
   Serial.begin(9600);

eeprom_setup/eeprom_init.h

@@ -1,40 +1,8 @@
 #include <EEPROM.h>
-
-const uint8_t CompileTimeP[] PROGMEM = __DATE__ " " __TIME__;
-const size_t ConfAddress = sizeof(CompileTimeP);
-
-unsigned char b, e = -1, *p = (uint8_t*)CompileTimeP - 1;
-
-struct Vessel {
-  char name[16];
-  char setpoint[20];
-  char sensor[20];
-  double Rref;
-  double RNominal;
-};
-
-struct Topic {
-  char root[10];
-  Vessel mash;
-  Vessel boil;
-};
-
-struct Mqtt {
-  IPAddress broker;
-  char user[10];
-  char password[21];
-  Topic topic;
-};
-
-struct ConfigData {
-  Mqtt mqtt;
-  int interval;
-  int period;
-  uint8_t threshold;
-  uint8_t hysteresis;
-};
+#include "config.h"
 
 void StoreEEPROM() {
+  unsigned char b, e = -1, *p = (uint8_t*)CompileTimeP - 1;
   while( b = pgm_read_byte( ++p ) ){
     if( b !=  EEPROM[++e] ){