diff --git a/oregen-manager.lua b/oregen-manager.lua
index cb9e01d..7493801 100644
--- a/oregen-manager.lua
+++ b/oregen-manager.lua
@@ -28,6 +28,8 @@ local KEEP_STOCKED = {
     ["tfmg:nickel_nugget"] = 4 * 64,
     ["tfmg:lithium_nugget"] = 64,
     ["tfmg:bauxite_powder"] = 4 * 64,
+    ["minecraft:flint"] = 0,
+    ["minecraft:andesite"] = 4 * 64,
 }
 
 local GLOBAL_LIMS = {
@@ -52,6 +54,10 @@ local LIMIT_EXCEPTIONS = {
         lower = -1,
         upper = 0,
     },
+    ["minecraft:flint"] = {
+        lower = 64,
+        upper = 2 * 64,
+    },
 }
 
 -- if these exist, they will be used up
@@ -69,7 +75,7 @@ local PRODUCTS = {
     {"minecraft:sand", WASHER_ADDR},
     {"minecraft:clay_ball", SMELTER_ADDR},
     {"minecraft:brick", HAUNTER_ADDR},
-    {"minecraft:flint", CRUSHER_ADDR},
+    {"minecraft:flint", CRUSHER_ADDR, keep = 4 * 64},
     {"minecraft:nether_bricks", CRUSHER_ADDR},
     {"minecraft:basalt", CRUSHER_ADDR},
     {"create:crushed_raw_silver", WASHER_ADDR, limit = 16},
@@ -163,6 +169,21 @@ local RECIPES = {
         addr = PRESS_ADDR,
         limit = 6,
     },
+    ["minecraft:flint"] = {
+        ingredients = {
+            {"minecraft:gravel", 64},
+        },
+        addr = WASHER_ADDR,
+        limit = 8,
+    },
+    ["minecraft:andesite"] = {
+        ingredients = {
+            {"minecraft:flint", 64},
+            {"minecraft:gravel", 32},
+        },
+        addr = PRESS_ADDR,
+        limit = 6,
+    },
 }
 
 local SLEEP_T = 20