diff --git a/config.h b/config.h
--- a/config.h
+++ b/config.h
@@ -42,6 +42,7 @@
 #define DEFAULT_K_P 10
 #define DEFAULT_K_I 1
 #define DEFAULT_K_D 1
+#define DEFAULT_TEMP_OFFSET 0
 #define DEFAULT_IGNORE_ERROR 0
 #define DEFAULT_SETPOINT_BREW 70
 #define DEFAULT_SETPOINT_STEAM 70