diff --git a/code/modules/reagents/chemistry/recipes/pyrotechnics.dm b/code/modules/reagents/chemistry/recipes/pyrotechnics.dm
index da8e197f63d..f1fb70faf38 100644
--- a/code/modules/reagents/chemistry/recipes/pyrotechnics.dm
+++ b/code/modules/reagents/chemistry/recipes/pyrotechnics.dm
@@ -503,7 +503,7 @@
 	reaction_tags = REACTION_TAG_EASY | REACTION_TAG_UNIQUE
 
 /datum/chemical_reaction/pyrosium_oxygen/on_reaction(datum/reagents/holder, datum/equilibrium/reaction, created_volume)
-	holder.chem_temp += 10*created_volume
+	holder.expose_temperature(holder.chem_temp + (10 * created_volume), 1)
 
 /datum/chemical_reaction/pyrosium
 	results = list(/datum/reagent/pyrosium = 3)
@@ -516,8 +516,7 @@
 	reaction_tags = REACTION_TAG_EASY | REACTION_TAG_UNIQUE
 
 /datum/chemical_reaction/pyrosium/on_reaction(datum/reagents/holder, datum/equilibrium/reaction, created_volume)
-	holder.chem_temp = 20 // also cools the fuck down
-	return
+	holder.expose_temperature(20, 1) // also cools the fuck down
 
 /datum/chemical_reaction/teslium
 	results = list(/datum/reagent/teslium = 3)