diff --git a/config/default_configs/default_edmf_config.yml b/config/default_configs/default_edmf_config.yml
index 3a28253697..deb29f7ca3 100644
--- a/config/default_configs/default_edmf_config.yml
+++ b/config/default_configs/default_edmf_config.yml
@@ -43,4 +43,4 @@ detr_coeff:
   value: 0.001
 edmfx_sgs_flux:
   help: "If set to true, it switches on EDMFX SGS flux.  [`true`, `false` (default)]"
-  value: false
\ No newline at end of file
+  value: false
diff --git a/src/cache/edmf_precomputed_quantities.jl b/src/cache/edmf_precomputed_quantities.jl
index 593a876e60..59c3a50b29 100644
--- a/src/cache/edmf_precomputed_quantities.jl
+++ b/src/cache/edmf_precomputed_quantities.jl
@@ -132,8 +132,10 @@ function set_edmf_precomputed_quantities!(Y, p, ᶠuₕ³, t)
         sgsʲs_ρaq_tot_int_val =
             Fields.field_values(Fields.level(Y.c.sgsʲs.:($j).ρaq_tot, 1))
 
+        turbconv_params = CAP.turbconv_params(params)
         @. sgsʲs_ρa_int_val =
-            $(FT(0.1)) * TD.air_density(thermo_params, ᶜtsʲ_int_val)
+            $(FT(turbconv_params.surface_area)) *
+            TD.air_density(thermo_params, ᶜtsʲ_int_val)
         @. sgsʲs_ρae_tot_int_val =
             sgsʲs_ρa_int_val * TD.total_energy(
                 thermo_params,
diff --git a/toml/edmfx_bomex_box_v1.toml b/toml/edmfx_bomex_box_v1.toml
index 3da20f5a66..63ce6f56f8 100644
--- a/toml/edmfx_bomex_box_v1.toml
+++ b/toml/edmfx_bomex_box_v1.toml
@@ -3,3 +3,7 @@ alias = "C_E"
 value = 0.044
 type = "float"
 
+[EDMF_surface_area]
+alias = "surface_area"
+value = 0.1
+type = "float"