diff --git a/tutorials/heatTransfer/buoyantBoussinesqSimpleFoam/iglooWithFridges/system/snappyHexMeshDict b/tutorials/heatTransfer/buoyantBoussinesqSimpleFoam/iglooWithFridges/system/snappyHexMeshDict
index 573e23b23bbef144545921f7e32362e6bdb4595f..efbcd3631290a23e019cee77cc80fb7c366fa667 100644
--- a/tutorials/heatTransfer/buoyantBoussinesqSimpleFoam/iglooWithFridges/system/snappyHexMeshDict
+++ b/tutorials/heatTransfer/buoyantBoussinesqSimpleFoam/iglooWithFridges/system/snappyHexMeshDict
@@ -365,7 +365,7 @@ meshQualityControls
     //     <0 = inside out tet,
     //      0 = flat tet
     //      1 = regular tet
-    minTetQuality 1e-9;
+    minTetQuality 1e-30;
 
     //- Minimum face area. Set to <0 to disable.
     minArea -1;
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/snappyMultiRegionHeater/system/snappyHexMeshDict b/tutorials/heatTransfer/chtMultiRegionFoam/snappyMultiRegionHeater/system/snappyHexMeshDict
index e316ec6be9739c9207a9ecea804786fc8f3b2fdb..6e7fa19ef8d74f23b5a213a6429b8b2158d8dd69 100644
--- a/tutorials/heatTransfer/chtMultiRegionFoam/snappyMultiRegionHeater/system/snappyHexMeshDict
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/snappyMultiRegionHeater/system/snappyHexMeshDict
@@ -347,7 +347,7 @@ meshQualityControls
     //     <0 = inside out tet,
     //      0 = flat tet
     //      1 = regular tet
-    minTetQuality 1e-9;
+    minTetQuality 1e-30;
 
     //- Minimum face area. Set to <0 to disable.
     minArea -1;
diff --git a/tutorials/incompressible/pimpleDyMFoam/wingMotion/wingMotion_snappyHexMesh/system/snappyHexMeshDict b/tutorials/incompressible/pimpleDyMFoam/wingMotion/wingMotion_snappyHexMesh/system/snappyHexMeshDict
index ab931a25828e2241b9de237107cb122e36de44cf..5484dbc3c7b310751d12a3a5a669957a257e7fc6 100644
--- a/tutorials/incompressible/pimpleDyMFoam/wingMotion/wingMotion_snappyHexMesh/system/snappyHexMeshDict
+++ b/tutorials/incompressible/pimpleDyMFoam/wingMotion/wingMotion_snappyHexMesh/system/snappyHexMeshDict
@@ -279,7 +279,7 @@ meshQualityControls
     //     <0 = inside out tet,
     //      0 = flat tet
     //      1 = regular tet
-    minTetQuality 1e-9;
+    minTetQuality 1e-30;
 
     //- Minimum face area. Set to <0 to disable.
     minArea -1;
diff --git a/tutorials/incompressible/simpleWindFoam/turbineSiting/system/snappyHexMeshDict b/tutorials/incompressible/simpleWindFoam/turbineSiting/system/snappyHexMeshDict
index 38b3eb4a1f5196ae0c455a92cb21dce41cfbe91b..25301e24cd41fb5ec530e341a678b936b2fa5036 100644
--- a/tutorials/incompressible/simpleWindFoam/turbineSiting/system/snappyHexMeshDict
+++ b/tutorials/incompressible/simpleWindFoam/turbineSiting/system/snappyHexMeshDict
@@ -369,7 +369,7 @@ meshQualityControls
     //     <0 = inside out tet,
     //      0 = flat tet
     //      1 = regular tet
-    minTetQuality 1e-9;
+    minTetQuality 1e-30;
 
     //- Minimum face area. Set to <0 to disable.
     minArea -1;
diff --git a/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/snappyHexMeshDict b/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/snappyHexMeshDict
index b44a7ceab881d58d9566e65edd7a5dc216f973c1..3486a712223345ad505d74170e0e824cdabd3786 100644
--- a/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/snappyHexMeshDict
+++ b/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/snappyHexMeshDict
@@ -299,7 +299,7 @@ meshQualityControls
     //     <0 = inside out tet,
     //      0 = flat tet
     //      1 = regular tet
-    minTetQuality 1e-9;
+    minTetQuality 1e-30;
 
     //- Minimum face area. Set to <0 to disable.
     minArea -1;