Why does breakfast have a timer?

https://github.com/tgstation/tgstation/pull/44419
https://github.com/tgstation/tgstation/pull/46220
https://github.com/tgstation/tgstation/pull/44914
https://github.com/tgstation/tgstation/pull/46933
https://github.com/tgstation/tgstation/pull/48153
https://github.com/tgstation/tgstation/pull/46898

code/game/objects/items/gift.dm

@@ -76,7 +76,7 @@ GLOBAL_LIST_EMPTY(possible_gifts)
 		/obj/item/clothing/suit/poncho/red,
 		/obj/item/clothing/suit/snowman,
 		/obj/item/clothing/head/snowman,
-		/obj/item/trash/coal)
+		/obj/item/stack/sheet/mineral/coal)
 
 	gift_type_list += subtypesof(/obj/item/clothing/head/collectable)
 	gift_type_list += subtypesof(/obj/item/toy) - (((typesof(/obj/item/toy/cards) - /obj/item/toy/cards/deck) + /obj/item/toy/figure + /obj/item/toy/ammo)) //All toys, except for abstract types and syndicate cards.

code/game/objects/items/stacks/sheets/mineral.dm

@@ -4,7 +4,6 @@ Mineral Sheets
 		- Sandstone
 		- Sandbags
 		- Diamond
-		- Snow
 		- Uranium
 		- Plasma
 		- Gold
@@ -15,8 +14,9 @@ Mineral Sheets
 	Others:
 		- Adamantine
 		- Mythril
-		- Enriched Uranium
+		- Snow
 		- Abductor
+		- Coal
 */
 
 /obj/item/stack/sheet/mineral/Initialize(mapload)
@@ -407,3 +407,36 @@ GLOBAL_LIST_INIT(abductor_recipes, list ( \
 /obj/item/stack/sheet/mineral/abductor/Initialize(mapload, new_amount, merge = TRUE)
 	recipes = GLOB.abductor_recipes
 	. = ..()
+
+/*
+ * Coal
+ */
+
+/obj/item/stack/sheet/mineral/coal
+	name = "coal"
+	desc = "Someone's gotten on the naughty list."
+	icon = 'icons/obj/mining.dmi'
+	icon_state = "slag"
+	singular_name = "coal lump"
+	merge_type = /obj/item/stack/sheet/mineral/coal
+	grind_results = list("carbon" = 20)
+
+/obj/item/stack/sheet/mineral/coal/attackby(obj/item/W, mob/user, params)
+	if(W.get_temperature() > 300)//If the temperature of the object is over 300, then ignite
+		var/turf/T = get_turf(src)
+		message_admins("Coal ignited by [ADMIN_LOOKUPFLW(user)] in [ADMIN_VERBOSEJMP(T)]")
+		log_game("Coal ignited by [key_name(user)] in [AREACOORD(T)]")
+		fire_act(W.get_temperature())
+		return TRUE
+	else
+		return ..()
+
+/obj/item/stack/sheet/mineral/coal/fire_act(exposed_temperature, exposed_volume)
+	atmos_spawn_air("co2=[amount*10];TEMP=[exposed_temperature]")
+	qdel(src)
+
+/obj/item/stack/sheet/mineral/coal/five
+	amount = 5
+
+/obj/item/stack/sheet/mineral/coal/ten
+	amount = 10

code/game/objects/items/trash.dm

@@ -73,16 +73,4 @@
 	grind_results = list("aluminium" = 10)
 
 /obj/item/trash/attack(mob/M, mob/living/user)
-	return
-
-/obj/item/trash/coal
-	name = "lump of coal"
-	icon = 'icons/obj/mining.dmi'
-	icon_state = "slag"
-	desc = "Someone's gotten on the naughty list."
-	grind_results = list("carbon" = 20)
-
-/obj/item/trash/coal/burn()
-	visible_message("[src] fuses into a diamond! Someone wasn't so naughty after all...")
-	new /obj/item/stack/ore/diamond(loc)
-	qdel(src)
+	return