diff --git a/tutorials/lagrangian/reactingParcelFoam/cylinder/constant/combustionProperties b/tutorials/lagrangian/reactingParcelFoam/cylinder/constant/combustionProperties
index 5632d4129d..f846ced203 100644
--- a/tutorials/lagrangian/reactingParcelFoam/cylinder/constant/combustionProperties
+++ b/tutorials/lagrangian/reactingParcelFoam/cylinder/constant/combustionProperties
@@ -15,14 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel  PaSR;
-
-active  false;
-
-PaSRCoeffs
-{
-    Cmix                1.0;
-}
+combustionModel  none;
 
 
 // ************************************************************************* //
diff --git a/tutorials/lagrangian/reactingParcelFoam/filter/constant/combustionProperties b/tutorials/lagrangian/reactingParcelFoam/filter/constant/combustionProperties
index d206bf3d7b..f846ced203 100644
--- a/tutorials/lagrangian/reactingParcelFoam/filter/constant/combustionProperties
+++ b/tutorials/lagrangian/reactingParcelFoam/filter/constant/combustionProperties
@@ -15,12 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel  laminar;
-
-active  false;
-
-laminarCoeffs
-{}
+combustionModel  none;
 
 
 // ************************************************************************* //
diff --git a/tutorials/lagrangian/reactingParcelFoam/hotBoxes/constant/combustionProperties b/tutorials/lagrangian/reactingParcelFoam/hotBoxes/constant/combustionProperties
index d206bf3d7b..f846ced203 100644
--- a/tutorials/lagrangian/reactingParcelFoam/hotBoxes/constant/combustionProperties
+++ b/tutorials/lagrangian/reactingParcelFoam/hotBoxes/constant/combustionProperties
@@ -15,12 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel  laminar;
-
-active  false;
-
-laminarCoeffs
-{}
+combustionModel  none;
 
 
 // ************************************************************************* //
diff --git a/tutorials/lagrangian/reactingParcelFoam/parcelInBox/constant/combustionProperties b/tutorials/lagrangian/reactingParcelFoam/parcelInBox/constant/combustionProperties
index d206bf3d7b..f846ced203 100644
--- a/tutorials/lagrangian/reactingParcelFoam/parcelInBox/constant/combustionProperties
+++ b/tutorials/lagrangian/reactingParcelFoam/parcelInBox/constant/combustionProperties
@@ -15,12 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel  laminar;
-
-active  false;
-
-laminarCoeffs
-{}
+combustionModel  none;
 
 
 // ************************************************************************* //
diff --git a/tutorials/lagrangian/reactingParcelFoam/rivuletPanel/constant/combustionProperties b/tutorials/lagrangian/reactingParcelFoam/rivuletPanel/constant/combustionProperties
index d206bf3d7b..f846ced203 100644
--- a/tutorials/lagrangian/reactingParcelFoam/rivuletPanel/constant/combustionProperties
+++ b/tutorials/lagrangian/reactingParcelFoam/rivuletPanel/constant/combustionProperties
@@ -15,12 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel  laminar;
-
-active  false;
-
-laminarCoeffs
-{}
+combustionModel  none;
 
 
 // ************************************************************************* //
diff --git a/tutorials/lagrangian/reactingParcelFoam/splashPanel/constant/combustionProperties b/tutorials/lagrangian/reactingParcelFoam/splashPanel/constant/combustionProperties
index d206bf3d7b..f846ced203 100644
--- a/tutorials/lagrangian/reactingParcelFoam/splashPanel/constant/combustionProperties
+++ b/tutorials/lagrangian/reactingParcelFoam/splashPanel/constant/combustionProperties
@@ -15,12 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel  laminar;
-
-active  false;
-
-laminarCoeffs
-{}
+combustionModel  none;
 
 
 // ************************************************************************* //
diff --git a/tutorials/lagrangian/reactingParcelFoam/verticalChannel/constant/combustionProperties b/tutorials/lagrangian/reactingParcelFoam/verticalChannel/constant/combustionProperties
index d206bf3d7b..f846ced203 100644
--- a/tutorials/lagrangian/reactingParcelFoam/verticalChannel/constant/combustionProperties
+++ b/tutorials/lagrangian/reactingParcelFoam/verticalChannel/constant/combustionProperties
@@ -15,12 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel  laminar;
-
-active  false;
-
-laminarCoeffs
-{}
+combustionModel  none;
 
 
 // ************************************************************************* //
diff --git a/tutorials/lagrangian/reactingParcelFoam/verticalChannelLTS/constant/combustionProperties b/tutorials/lagrangian/reactingParcelFoam/verticalChannelLTS/constant/combustionProperties
index d206bf3d7b..f846ced203 100644
--- a/tutorials/lagrangian/reactingParcelFoam/verticalChannelLTS/constant/combustionProperties
+++ b/tutorials/lagrangian/reactingParcelFoam/verticalChannelLTS/constant/combustionProperties
@@ -15,12 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel  laminar;
-
-active  false;
-
-laminarCoeffs
-{}
+combustionModel  none;
 
 
 // ************************************************************************* //
diff --git a/tutorials/lagrangian/simpleReactingParcelFoam/verticalChannel/constant/combustionProperties b/tutorials/lagrangian/simpleReactingParcelFoam/verticalChannel/constant/combustionProperties
index 7e65b2c249..996deb0400 100644
--- a/tutorials/lagrangian/simpleReactingParcelFoam/verticalChannel/constant/combustionProperties
+++ b/tutorials/lagrangian/simpleReactingParcelFoam/verticalChannel/constant/combustionProperties
@@ -15,11 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel laminar;
+combustionModel none;
 
-active  false;
-
-laminarCoeffs
-{}
 
 // ************************************************************************* //
diff --git a/tutorials/mesh/parallel/filter/constant/combustionProperties b/tutorials/mesh/parallel/filter/constant/combustionProperties
index 3d8f12afb4..f846ced203 100644
--- a/tutorials/mesh/parallel/filter/constant/combustionProperties
+++ b/tutorials/mesh/parallel/filter/constant/combustionProperties
@@ -15,12 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel  laminar<rhoChemistryCombustion>;
-
-active  false;
-
-laminarCoeffs
-{}
+combustionModel  none;
 
 
 // ************************************************************************* //
diff --git a/tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianDistributionInjection/constant/combustionProperties b/tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianDistributionInjection/constant/combustionProperties
index 4f1d97bf2b..996deb0400 100644
--- a/tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianDistributionInjection/constant/combustionProperties
+++ b/tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianDistributionInjection/constant/combustionProperties
@@ -15,11 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel noCombustion<psiThermoCombustion>;
+combustionModel none;
 
-active          no;
-
-noCombustionCoeffs
-{}
 
 // ************************************************************************* //
diff --git a/tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianParticleInjection/constant/combustionProperties b/tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianParticleInjection/constant/combustionProperties
index 4f1d97bf2b..996deb0400 100644
--- a/tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianParticleInjection/constant/combustionProperties
+++ b/tutorials/multiphase/interFoam/laminar/vofToLagrangian/lagrangianParticleInjection/constant/combustionProperties
@@ -15,11 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-combustionModel noCombustion<psiThermoCombustion>;
+combustionModel none;
 
-active          no;
-
-noCombustionCoeffs
-{}
 
 // ************************************************************************* //