diff --git a/build.gradle b/build.gradle
index c153a70f..6965ef21 100644
--- a/build.gradle
+++ b/build.gradle
@@ -146,6 +146,8 @@ dependencies {
     modImplementation("curse.maven:cyclic-239286:4994392")
     modImplementation("curse.maven:flib-661261:4724762")
     modImplementation("curse.maven:thirst-was-taken-679270:6660408")
+    modImplementation("curse.maven:tinkers-construct-74072:7449219")
+    modImplementation("curse.maven:mantel-74924:7563777")
 
     // DEV ONLY
     compileOnly('org.jetbrains:annotations:23.0.0')
diff --git a/changelog.md b/changelog.md
index aceb681d..6f93ebe4 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,6 @@
+## Ex Deorum 1.50
+- Fixed Crucible bug where pending solids could be converted to another fluid while tank was empty (#180)
+
 ## Ex Deorum 1.49
 - Fixed more issues with _Thirst Was Taken_, thanks to pawjwp (#170)
   - Fixed Dust not having a map color (#169)
diff --git a/src/main/java/thedarkcolour/exdeorum/blockentity/AbstractCrucibleBlockEntity.java b/src/main/java/thedarkcolour/exdeorum/blockentity/AbstractCrucibleBlockEntity.java
index 99869e7e..e79c3de2 100644
--- a/src/main/java/thedarkcolour/exdeorum/blockentity/AbstractCrucibleBlockEntity.java
+++ b/src/main/java/thedarkcolour/exdeorum/blockentity/AbstractCrucibleBlockEntity.java
@@ -202,10 +202,11 @@ public abstract class AbstractCrucibleBlockEntity extends ETankBlockEntity {
         }
         var result = recipe.getResult();
         var contained = this.tank.getFluid();
+        var hadPendingSolids = this.solids > 0;
         shrinkAction.accept(item);
         this.solids = (short) Math.min(this.solids + result.getAmount(), MAX_SOLIDS);
 
-        if (contained.isEmpty()) {
+        if (contained.isEmpty() && !hadPendingSolids) {
             this.fluid = result.getFluid();
             this.needsLightUpdate = true;
         }
@@ -234,12 +235,16 @@ public abstract class AbstractCrucibleBlockEntity extends ETankBlockEntity {
             var result = recipe.getResult();
             var contained = this.tank.getFluid();
 
-            return (result.isFluidEqual(contained) || contained.isEmpty()) && result.getAmount() + this.solids <= MAX_SOLIDS;
+            return (result.isFluidEqual(contained) || (contained.isEmpty() && canAddToPendingFluid(result))) && result.getAmount() + this.solids <= MAX_SOLIDS;
         }
 
         return false;
     }
 
+    private boolean canAddToPendingFluid(FluidStack result) {
+        return this.solids == 0 || this.fluid == null || result.getFluid() == this.fluid;
+    }
+
     public abstract int getMeltingRate();
 
     public int getSolids() {
@@ -296,7 +301,7 @@ public abstract class AbstractCrucibleBlockEntity extends ETankBlockEntity {
         }
     }
 
-    private static class FluidHandler extends FluidHelper {
+    private class FluidHandler extends FluidHelper {
         public FluidHandler() {
             super(MAX_FLUID_CAPACITY);
         }
@@ -305,6 +310,16 @@ public abstract class AbstractCrucibleBlockEntity extends ETankBlockEntity {
         public boolean isFluidValid(FluidStack stack) {
             return false;
         }
+
+        @Override
+        protected void onContentsChanged() {
+            if (this.fluid.isEmpty() && AbstractCrucibleBlockEntity.this.solids == 0) {
+                AbstractCrucibleBlockEntity.this.fluid = null;
+            }
+
+            AbstractCrucibleBlockEntity.this.needsLightUpdate = true;
+            AbstractCrucibleBlockEntity.this.markUpdated();
+        }
     }
 
     // inner class