diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac4a6509e..4e56c9c45 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@
 - Added some more medicinal plants. @Pyritie
 - Added lathe recipes to strip logs. @Pyritie
 - Iron flask now accepts any cloth, red steel flask now requires phantom silk. @Pyritie
+- Make food jars and firmalife jars stacks by 16. (#1081) #Zeropol
 - Fixed medicine not working with cheats disabled. (#1084) @Redeix
 
 ## [0.9.8] - 19.05.2025
diff --git a/kubejs/server_scripts/firmalife/data.js b/kubejs/server_scripts/firmalife/data.js
new file mode 100644
index 000000000..6b7671067
--- /dev/null
+++ b/kubejs/server_scripts/firmalife/data.js
@@ -0,0 +1,15 @@
+// priority: 0
+
+const registerTFCDataForFirmalife = (event) => {
+    registerFirmalifeItemSize(event)
+}
+
+//#region registerFirmalifeItemSize
+const registerFirmalifeItemSize = (event) => {
+    event.itemSize('firmalife:jar/honey', 'tiny', 'medium', 'jar_of_honey')
+    event.itemSize('firmalife:jar/compost', 'tiny', 'medium', 'jar_of_compost')
+    event.itemSize('firmalife:jar/rotten_compost', 'tiny', 'medium', 'jar_of_rotten_compost')
+    event.itemSize('firmalife:jar/guano', 'tiny', 'medium', 'jar_of_guano')
+
+}
+//#endregion
diff --git a/kubejs/server_scripts/main_server_script.js b/kubejs/server_scripts/main_server_script.js
index dc1538047..ab87e8dea 100644
--- a/kubejs/server_scripts/main_server_script.js
+++ b/kubejs/server_scripts/main_server_script.js
@@ -127,6 +127,7 @@ TFCEvents.data(event => {
     registerTFCDataForTFC(event)
     registerTFCDataForTFCBetterBF(event)
     registerTFCDataForWaterFlasks(event)
+    registerTFCDataForFirmalife(event)
 })
 
 /**
diff --git a/kubejs/server_scripts/tfc/data.js b/kubejs/server_scripts/tfc/data.js
index 96618bee1..dfa3f8b19 100644
--- a/kubejs/server_scripts/tfc/data.js
+++ b/kubejs/server_scripts/tfc/data.js
@@ -209,6 +209,9 @@ const registerTFCItemSize = (event) => {
     event.itemSize('tfg:fishing_net/magnalium', 'large', 'medium', 'magnalium_fishing_net')
 
     event.itemSize('#tfc:ore_pieces', 'very_small', 'very_light', 'tfc_ores')
+	
+    event.itemSize('#tfc:foods/sealed_preserves', 'tiny', 'medium', 'sealed_preserves')
+    event.itemSize('#tfc:foods/preserves', 'tiny', 'medium', 'preserves')
 
 }
 //#endregion