diff --git a/src/const.h b/src/const.h
index 4040922b6fb8b3837a19e149adb04aad1125d6da..b1e7e777e52d13785da8eeb7e4ca13019234ebef 100644
--- a/src/const.h
+++ b/src/const.h
@@ -20,9 +20,6 @@
 #ifndef SWIFT_CONST_H
 #define SWIFT_CONST_H
 
-/* Time integration constants. */
-#define const_max_u_change 0.1f
-
 /* I/O Constant; this determines the relative tolerance between the value of
  * redshift read from the snapshot, and the value from the parameter file. This
  * current value asserts that they must match within 0.1%. */
diff --git a/src/hydro/AnarchyPU/hydro_io.h b/src/hydro/AnarchyPU/hydro_io.h
index 25fa28fc26f10ea5ec3da323ff665aa1839baccd..2d02b350caada74a9054ab7d698fe90c3d0b2736 100644
--- a/src/hydro/AnarchyPU/hydro_io.h
+++ b/src/hydro/AnarchyPU/hydro_io.h
@@ -229,10 +229,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
                        "Simple treatment as in Price (2008)");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Simplified version of Cullen & Denhen (2011)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/Default/hydro_io.h b/src/hydro/Default/hydro_io.h
index 7a51b8cd5086074bdf1795cd1e92f518ab9f8e44..849903d46b2dc0d79dae3ba623c494a1ac507a49 100644
--- a/src/hydro/Default/hydro_io.h
+++ b/src/hydro/Default/hydro_io.h
@@ -229,10 +229,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
                        "Simple treatment as in Price (2017)");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Simplified version of Cullen & Denhen (2011)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/Minimal/hydro_io.h b/src/hydro/Minimal/hydro_io.h
index aa5b17acaf7b68d24602b0a242ddd16f6e6b752e..9239de218e513fc2e9ae9e03d08dd421b6923d38 100644
--- a/src/hydro/Minimal/hydro_io.h
+++ b/src/hydro/Minimal/hydro_io.h
@@ -211,10 +211,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
   io_write_attribute_s(h_grpsph, "Thermal Conductivity Model", "No treatment");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Minimal treatment as in Monaghan (1992)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/Planetary/hydro_io.h b/src/hydro/Planetary/hydro_io.h
index b0599ceba9101be21c843838c600e2e971cb3e69..bf939ffa2c0052eb728abb182e5719bb914df122 100644
--- a/src/hydro/Planetary/hydro_io.h
+++ b/src/hydro/Planetary/hydro_io.h
@@ -214,10 +214,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
       h_grpsph, "Viscosity Model",
       "as in Springel (2005), i.e. Monaghan (1992) with Balsara (1995) switch");
 #endif
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/PressureEnergy/hydro_io.h b/src/hydro/PressureEnergy/hydro_io.h
index 98ae52e273279716238158c594c946e8b3ed2062..2be85e79b67eba1d9d6306a64f7639cae4bac291 100644
--- a/src/hydro/PressureEnergy/hydro_io.h
+++ b/src/hydro/PressureEnergy/hydro_io.h
@@ -210,10 +210,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
   io_write_attribute_s(h_grpsph, "Thermal Conductivity Model", "No treatment");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Minimal treatment as in Monaghan (1992)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/PressureEnergyMorrisMonaghanAV/hydro_io.h b/src/hydro/PressureEnergyMorrisMonaghanAV/hydro_io.h
index e77bf21f192f5ba628d4ad337cc1f309de015955..69385e5609609a6fe9451d2b3f2aa8fad1e50830 100644
--- a/src/hydro/PressureEnergyMorrisMonaghanAV/hydro_io.h
+++ b/src/hydro/PressureEnergyMorrisMonaghanAV/hydro_io.h
@@ -215,10 +215,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
   io_write_attribute_s(h_grpsph, "Thermal Conductivity Model", "No treatment");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Variable viscosity as in Morris and Monaghan (1997)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/PressureEntropy/hydro_io.h b/src/hydro/PressureEntropy/hydro_io.h
index d7168f39557a6a9b6abbfd770e7739e6350b06a1..d3c800e03ff46920d203ef0831fa2d7a5c48b077 100644
--- a/src/hydro/PressureEntropy/hydro_io.h
+++ b/src/hydro/PressureEntropy/hydro_io.h
@@ -217,10 +217,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
   io_write_attribute_s(
       h_grpsph, "Viscosity Model",
       "as in Springel (2005), i.e. Monaghan (1992) with Balsara (1995) switch");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/SPHENIX/hydro_io.h b/src/hydro/SPHENIX/hydro_io.h
index ca333d4ed68e0a7f4e734b5cb3bead609afc90a5..1b2d31a0ff3d8b244372f538b785109d9f1191a8 100644
--- a/src/hydro/SPHENIX/hydro_io.h
+++ b/src/hydro/SPHENIX/hydro_io.h
@@ -222,10 +222,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
                        "Simple treatment as in Price (2008)");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Simplified version of Cullen & Denhen (2011)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**