last fixes I hope:

tiny change to latexballoon (b/c I reorganized is_sharp proc already, so why not)
some fixes suggested by razharas in table.dm
Renamed microwave to microwave oven. Adding efficiency effect (upgrading the machine)
Adding rolling pins to the kitchen vending machine (so the two cooks don't fight.

code/game/machinery/vending.dm

@@ -889,7 +889,7 @@
 	desc = "A kitchen and restaurant equipment vendor"
 	product_ads = "Mm, food stuffs!;Food and food accessories.;Get your plates!;You like forks?;I like forks.;Woo, utensils.;You don't really need these..."
 	icon_state = "dinnerware"
-	products = list(/obj/item/weapon/storage/bag/tray = 8,/obj/item/weapon/kitchen/utensil/fork = 6,/obj/item/weapon/kitchenknife = 3,/obj/item/weapon/reagent_containers/food/drinks/drinkingglass = 8,/obj/item/clothing/suit/apron/chef = 2,/obj/item/weapon/reagent_containers/food/condiment/pack/ketchup = 5,/obj/item/weapon/reagent_containers/food/condiment/pack/hotsauce = 5,/obj/item/weapon/reagent_containers/glass/bowl = 10)
+	products = list(/obj/item/weapon/storage/bag/tray = 8,/obj/item/weapon/kitchen/utensil/fork = 6,/obj/item/weapon/kitchenknife = 3,/obj/item/weapon/kitchen/rollingpin = 2,/obj/item/weapon/reagent_containers/food/drinks/drinkingglass = 8,/obj/item/clothing/suit/apron/chef = 2,/obj/item/weapon/reagent_containers/food/condiment/pack/ketchup = 5,/obj/item/weapon/reagent_containers/food/condiment/pack/hotsauce = 5,/obj/item/weapon/reagent_containers/glass/bowl = 10)
 	contraband = list(/obj/item/weapon/kitchen/rollingpin = 2, /obj/item/weapon/kitchenknife/butcher = 2)
 
 /obj/machinery/vending/sovietsoda

code/game/objects/items/latexballoon.dm

@@ -55,5 +55,5 @@
 		var/obj/item/weapon/tank/T = W
 		blow(T, user)
 		return
-	if (is_sharp(W) || is_hot(W))
+	if (is_sharp(W) || is_hot(W) || is_pointed(W))
 		burst()

code/game/objects/items/stacks/rods.dm

@@ -8,6 +8,7 @@ var/global/list/datum/stack_recipe/rod_recipes = list ( \
 	desc = "Some rods. Can be used for building, or something."
 	singular_name = "metal rod"
 	icon_state = "rods"
+	item_state = "rods"
 	flags = CONDUCT
 	w_class = 3.0
 	force = 9.0

code/modules/crafting/table.dm

@@ -7,7 +7,7 @@
 	interact(usr)
 
 /obj/structure/table/proc/check_contents(datum/table_recipe/R)
-	check_table(R)
+	check_table()
 	main_loop:
 		for(var/A in R.reqs)
 			for(var/B in table_contents)
@@ -20,18 +20,19 @@
 			return 0
 	return 1
 
-/obj/structure/table/proc/check_table(datum/table_recipe/R)
+/obj/structure/table/proc/check_table()
 	table_contents = list()
 	for(var/obj/item/I in loc)
 		if(istype(I, /obj/item/stack))
 			var/obj/item/stack/S = I
 			table_contents[I.type] += S.amount
 		else
+			if(istype(I, /obj/item/weapon/reagent_containers))
+				var/obj/item/weapon/reagent_containers/RC = I
+				if(RC.flags & OPENCONTAINER)
+					for(var/datum/reagent/A in RC.reagents.reagent_list)
+						table_contents[A.type] += A.volume
 			table_contents[I.type] += 1
-	for(var/obj/item/weapon/reagent_containers/RC in loc)
-		if((RC.flags & OPENCONTAINER) || (R && (RC.type in R.reqs)))
-			for(var/datum/reagent/A in RC.reagents.reagent_list)
-				table_contents[A.type] += A.volume
 
 /obj/structure/table/proc/check_tools(mob/user, datum/table_recipe/R)
 	if(!R.tools.len)
@@ -56,7 +57,7 @@
 	return !i
 
 /obj/structure/table/proc/construct_item(mob/user, datum/table_recipe/R)
-	check_table(R)
+	check_table()
 	if(check_contents(R) && check_tools(user, R))
 		if(do_after(user, R.time))
 			if(!check_contents(R) || !check_tools(user, R))
@@ -125,7 +126,9 @@
 		for(var/B in Deletion)
 			for(var/A in R.parts)
 				if(istype(B, A))
-					continue deletion_loop
+					if(R.parts[A] > 0)
+						R.parts[A]--
+						continue deletion_loop
 			Deletion.Remove(B)
 			qdel(B)
 

code/modules/food&drinks/kitchen machinery/microwave.dm

@@ -1,6 +1,6 @@
 /obj/machinery/microwave
-	name = "microwave"
-	desc = "Keeps hot things hot and cold things hot."
+	name = "microwave oven"
+	desc = "Cooks and boils stuff."
 	icon = 'icons/obj/kitchen.dmi'
 	icon_state = "mw"
 	layer = 2.9
@@ -219,7 +219,7 @@
 		return
 	start()
 
-	if (prob(max(microwavepower*5,dirty*5)))
+	if (prob(max(microwavepower*5/efficiency-5,dirty*5))) //a clean unupgraded microwave on lowest power has no risk of failure
 		muck_start()
 		if (!microwaving(4))
 			muck_finish()
@@ -259,7 +259,7 @@
 		if (stat & (NOPOWER|BROKEN))
 			return 0
 		use_power(500)
-		sleep(12-2*microwavepower) // standard power means sleep(10). The higher the power, the faster the cooking
+		sleep(max(14-2*microwavepower-2*efficiency,2)) // standard power means sleep(10). The higher the power and the better the efficiency, the faster the cooking
 	return 1
 
 /obj/machinery/microwave/proc/has_extra_item()