diff --git a/code/controllers/emergency_shuttle_controller.dm b/code/controllers/emergency_shuttle_controller.dm
index 5dbfeb427a..2229c4febc 100644
--- a/code/controllers/emergency_shuttle_controller.dm
+++ b/code/controllers/emergency_shuttle_controller.dm
@@ -35,7 +35,12 @@ var/global/datum/emergency_shuttle_controller/emergency_shuttle
 
 			if (!shuttle.location)	//leaving from the station
 				//launch the pods!
-				for (var/datum/shuttle/ferry/escape_pod/pod in escape_pods)
+				for (var/EP in escape_pods)
+					var/datum/shuttle/ferry/escape_pod/pod
+					if(istype(escape_pods[EP], /datum/shuttle/ferry/escape_pod))
+						pod = escape_pods[EP]
+					else
+						continue
 					if (!pod.arming_controller || pod.arming_controller.armed)
 						pod.launch(src)
 
@@ -57,7 +62,12 @@ var/global/datum/emergency_shuttle_controller/emergency_shuttle
 
 		//arm the escape pods
 		if (evac)
-			for (var/datum/shuttle/ferry/escape_pod/pod in escape_pods)
+			for (var/EP in escape_pods)
+				var/datum/shuttle/ferry/escape_pod/pod
+				if(istype(escape_pods[EP], /datum/shuttle/ferry/escape_pod))
+					pod = escape_pods[EP]
+				else
+					continue
 				if (pod.arming_controller)
 					pod.arming_controller.arm()
 
diff --git a/code/controllers/subsystems/nanoui.dm b/code/controllers/subsystems/nanoui.dm
index e7f0d3c249..e622fce8f2 100644
--- a/code/controllers/subsystems/nanoui.dm
+++ b/code/controllers/subsystems/nanoui.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(nanoui)
 	name = "NanoUI"
-	wait = 20
+	wait = 5
 	// a list of current open /nanoui UIs, grouped by src_object and ui_key
 	var/list/open_uis = list()
 	// a list of current open /nanoui UIs, not grouped, for use in processing
@@ -13,7 +13,7 @@ SUBSYSTEM_DEF(nanoui)
 		"nano/css/",\
 		"nano/images/",\
 		"nano/images/status_icons/",\
-		"nano/images/modular_computers/",
+		"nano/images/modular_computers/",\
 		"nano/js/",\
 		"nano/templates/"\
 	)
@@ -25,7 +25,9 @@ SUBSYSTEM_DEF(nanoui)
 			if(copytext(filename, length(filename)) != "/") // filenames which end in "/" are actually directories, which we want to ignore
 				if(fexists(path + filename))
 					asset_files.Add(fcopy_rsc(path + filename)) // add this file to asset_files for sending to clients when they connect
-	return ..()
+	.=..()
+	for(var/i in GLOB.clients)
+		send_resources(i)
 
 /datum/controller/subsystem/nanoui/Recover()
 	if(SSnanoui.open_uis)
@@ -42,3 +44,10 @@ SUBSYSTEM_DEF(nanoui)
 	for(var/thing in processing_uis)
 		var/datum/nanoui/UI = thing
 		UI.process()
+
+//Sends asset files to a client, called on client/New()
+/datum/controller/subsystem/nanoui/proc/send_resources(client)
+	if(!subsystem_initialized)
+		return
+	for(var/file in asset_files)
+		client << browse_rsc(file)	// send the file to the client
\ No newline at end of file
diff --git a/code/controllers/subsystems/processing/chemistry.dm b/code/controllers/subsystems/processing/chemistry.dm
index 67b74d3ab6..34094f9fe3 100644
--- a/code/controllers/subsystems/processing/chemistry.dm
+++ b/code/controllers/subsystems/processing/chemistry.dm
@@ -4,6 +4,7 @@ PROCESSING_SUBSYSTEM_DEF(chemistry)
 	flags = SS_BACKGROUND|SS_POST_FIRE_TIMING
 	init_order = INIT_ORDER_CHEMISTRY
 	var/list/chemical_reactions = list()
+	var/list/chemical_reactions_by_reagent = list()
 	var/list/chemical_reagents = list()
 
 /datum/controller/subsystem/processing/chemistry/Recover()
@@ -22,15 +23,16 @@ PROCESSING_SUBSYSTEM_DEF(chemistry)
 // more than one chemical it will still only appear in only one of the sublists.
 /datum/controller/subsystem/processing/chemistry/proc/initialize_chemical_reactions()
 	var/paths = typesof(/datum/chemical_reaction) - /datum/chemical_reaction
-	SSchemistry.chemical_reactions = list()
+	chemical_reactions = list()
+	chemical_reactions_by_reagent = list()
 
 	for(var/path in paths)
-		var/datum/chemical_reaction/D = new path()
+		var/datum/chemical_reaction/D = new path
+		chemical_reactions += D
 		if(D.required_reagents && D.required_reagents.len)
 			var/reagent_id = D.required_reagents[1]
-			if(!chemical_reactions[reagent_id])
-				chemical_reactions[reagent_id] = list()
-			chemical_reactions[reagent_id] += D
+			LAZYINITLIST(chemical_reactions_by_reagent[reagent_id])
+			chemical_reactions_by_reagent[reagent_id] += D
 
 //Chemical Reagents - Initialises all /datum/reagent into a list indexed by reagent id
 /datum/controller/subsystem/processing/chemistry/proc/initialize_chemical_reagents()
diff --git a/code/modules/food/food/snacks.dm b/code/modules/food/food/snacks.dm
index 4e69bfe363..fe62dcd082 100644
--- a/code/modules/food/food/snacks.dm
+++ b/code/modules/food/food/snacks.dm
@@ -16,7 +16,7 @@
 	var/list/nutriment_desc = list("food" = 1)
 	center_of_mass = list("x"=16, "y"=16)
 	w_class = ITEMSIZE_SMALL
-	force = 1
+	force = 0
 
 /obj/item/weapon/reagent_containers/food/snacks/Initialize()
 	. = ..()
@@ -3878,4 +3878,4 @@
 	. = ..()
 	reagents.add_reagent("nutriment", 6)
 	reagents.add_reagent("protein", 4)
-	bitesize = 3
\ No newline at end of file
+	bitesize = 3
diff --git a/code/modules/hydroponics/grown.dm b/code/modules/hydroponics/grown.dm
index 34b2a1e78f..87ca12a170 100644
--- a/code/modules/hydroponics/grown.dm
+++ b/code/modules/hydroponics/grown.dm
@@ -62,6 +62,8 @@
 	update_desc()
 	if(reagents.total_volume > 0)
 		bitesize = 1+round(reagents.total_volume / 2, 1)
+	if(seed.get_trait(TRAIT_STINGS))
+		force = 1
 
 /obj/item/weapon/reagent_containers/food/snacks/grown/proc/update_desc()
 
diff --git a/code/modules/hydroponics/seed.dm b/code/modules/hydroponics/seed.dm
index 9ed2d836a6..0ec87dca8a 100644
--- a/code/modules/hydroponics/seed.dm
+++ b/code/modules/hydroponics/seed.dm
@@ -728,6 +728,9 @@
 					clr = get_trait(TRAIT_BIOLUM_COLOUR)
 				product.set_light(get_trait(TRAIT_BIOLUM), l_color = clr)
 
+			if(get_trait(TRAIT_STINGS))
+				product.force = 1
+
 			//Handle spawning in living, mobile products (like dionaea).
 			if(istype(product,/mob/living))
 				product.visible_message("<span class='notice'>The pod disgorges [product]!</span>")
diff --git a/code/modules/nano/nanomanager.dm b/code/modules/nano/nanomanager.dm
index afa779895a..69b0e7b77e 100644
--- a/code/modules/nano/nanomanager.dm
+++ b/code/modules/nano/nanomanager.dm
@@ -221,18 +221,4 @@
 
 	oldMob.open_uis.Cut()
 
-	return 1 // success
-
- /**
-  * Sends all nano assets to the client
-  * This is called on user login
-  *
-  * @param client /client The user's client
-  *
-  * @return nothing
-  */
-
-/datum/controller/subsystem/nanoui/proc/send_resources(client)
-	for(var/file in asset_files)
-		client << browse_rsc(file)	// send the file to the client
-
+	return 1 // success
\ No newline at end of file
diff --git a/code/modules/reagents/Chemistry-Holder.dm b/code/modules/reagents/Chemistry-Holder.dm
index 2d906381d1..467d7c37a9 100644
--- a/code/modules/reagents/Chemistry-Holder.dm
+++ b/code/modules/reagents/Chemistry-Holder.dm
@@ -77,41 +77,31 @@
 	return
 
 /datum/reagents/proc/handle_reactions()
-	START_PROCESSING(SSchemistry, src)
-
-//returns 1 if the holder should continue reactiong, 0 otherwise.
-/datum/reagents/process()
-	if(QDELETED(my_atom))		//No container, no reaction.
-		return PROCESS_KILL
-	if(my_atom.flags & NOREACT) // No reactions here
-		return PROCESS_KILL
-
-	var/reaction_occured
-	var/list/effect_reactions = list()
+	if(QDELETED(my_atom))
+		return FALSE
+	if(my_atom.flags & NOREACT)
+		return FALSE
+	var/reaction_occurred
 	var/list/eligible_reactions = list()
-	for(var/i in 1 to PROCESS_REACTION_ITER)
-		reaction_occured = 0
+	var/list/effect_reactions = list()
+	do
+		reaction_occurred = FALSE
+		for(var/i in reagent_list)
+			var/datum/reagent/R = i
+			if(SSchemistry.chemical_reactions_by_reagent[R.id])
+				eligible_reactions |= SSchemistry.chemical_reactions_by_reagent[R.id]
 
-		//need to rebuild this to account for chain reactions
-		for(var/datum/reagent/R in reagent_list)
-			eligible_reactions |= SSchemistry.chemical_reactions[R.id]
-
-		for(var/datum/chemical_reaction/C in eligible_reactions)
+		for(var/i in eligible_reactions)
+			var/datum/chemical_reaction/C = i
 			if(C.can_happen(src) && C.process(src))
 				effect_reactions |= C
-				reaction_occured = 1
-
-		eligible_reactions.Cut()
-
-		if(!reaction_occured)
-			break
-
-	for(var/datum/chemical_reaction/C in effect_reactions)
+				reaction_occurred = TRUE
+		eligible_reactions.len = 0
+	while(reaction_occurred)
+	for(var/i in effect_reactions)
+		var/datum/chemical_reaction/C = i
 		C.post_reaction(src)
-
 	update_total()
-	if(!reaction_occured)
-		return PROCESS_KILL
 
 /* Holder-to-chemical */
 
diff --git a/html/changelogs/Novacat - nanochemistry.yml b/html/changelogs/Novacat - nanochemistry.yml
new file mode 100644
index 0000000000..dab2b22861
--- /dev/null
+++ b/html/changelogs/Novacat - nanochemistry.yml	
@@ -0,0 +1,37 @@
+################################
+# Example Changelog File
+#
+# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
+#
+# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
+# When it is, any changes listed below will disappear.
+#
+# Valid Prefixes: 
+#   bugfix
+#   wip (For works in progress)
+#   tweak
+#   soundadd
+#   sounddel
+#   rscadd (general adding of nice things)
+#   rscdel (general deleting of nice things)
+#   imageadd
+#   imagedel
+#   maptweak
+#   spellcheck (typo fixes)
+#   experiment
+#################################
+
+# Your name.  
+author: Novacat
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+# Any changes you've made.  See valid prefix list above.
+# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
+# SCREW THIS UP AND IT WON'T WORK.
+# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
+# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
+changes: 
+  - tweak: "Chemistry processes instantly again."
+  - tweak: "Nanoui sends stuff even after client connect."
diff --git a/polaris.dme b/polaris.dme
index b01cdb7902..8cdfceb3a4 100644
--- a/polaris.dme
+++ b/polaris.dme
@@ -2448,6 +2448,7 @@
 #include "code\modules\research\designs\medical.dm"
 #include "code\modules\research\designs\mining_toys.dm"
 #include "code\modules\research\designs\misc.dm"
+#include "code\modules\research\designs\modular_computer.dm"
 #include "code\modules\research\designs\pdas.dm"
 #include "code\modules\research\designs\powercells.dm"
 #include "code\modules\research\designs\precursor.dm"