diff --git a/src/com/dre/brewery/BIngredients.java b/src/com/dre/brewery/BIngredients.java
index b40a221..2f7c721 100644
--- a/src/com/dre/brewery/BIngredients.java
+++ b/src/com/dre/brewery/BIngredients.java
@@ -57,7 +57,7 @@ public class BIngredients {
 
 		if (cookRecipe != null) {
 			// Potion is best with cooking only, can still be destilled, etc.
-			int quality = (int) Math.round((getIngredientQuality(cookRecipe) + getCookingQuality(cookRecipe)) / 2.0);
+			int quality = (int) Math.round((getIngredientQuality(cookRecipe) + getCookingQuality(cookRecipe, false)) / 2.0);
 			P.p.log("cooked potion has Quality: " + quality);
 			new Brew(uid, quality, cookRecipe, new BIngredients(ingredients, cookedTime));
 
@@ -118,7 +118,7 @@ public class BIngredients {
 
 	// best recipe for current state of potion, STILL not always returns the
 	// correct one...
-	public BRecipe getBestRecipe(byte wood, float time) {
+	public BRecipe getBestRecipe(byte wood, float time, boolean distilled) {
 		float quality = 0;
 		int ingredientQuality = 0;
 		int cookingQuality = 0;
@@ -127,7 +127,7 @@ public class BIngredients {
 		BRecipe bestRecipe = null;
 		for (BRecipe recipe : recipes) {
 			ingredientQuality = getIngredientQuality(recipe);
-			cookingQuality = getCookingQuality(recipe);
+			cookingQuality = getCookingQuality(recipe, distilled);
 
 			if (ingredientQuality > -1) {
 				P.p.log("Ingredient Quality: " + ingredientQuality + " Cooking Quality: " + cookingQuality + " Wood Quality: " + getWoodQuality(recipe, wood) + " age Quality: "
@@ -160,7 +160,7 @@ public class BIngredients {
 	// returns recipe that is cooking only and matches the ingredients and
 	// cooking time
 	public BRecipe getCookRecipe() {
-		BRecipe bestRecipe = getBestRecipe((byte) 0, 0);
+		BRecipe bestRecipe = getBestRecipe((byte) 0, 0, false);
 
 		// Check if best recipe is cooking only
 		if (bestRecipe != null) {
@@ -174,7 +174,7 @@ public class BIngredients {
 	// returns the currently best matching recipe for distilling for the
 	// ingredients and cooking time
 	public BRecipe getdistillRecipe() {
-		BRecipe bestRecipe = getBestRecipe((byte) 0, 0);
+		BRecipe bestRecipe = getBestRecipe((byte) 0, 0, true);
 
 		// Check if best recipe needs to be destilled
 		if (bestRecipe != null) {
@@ -187,8 +187,8 @@ public class BIngredients {
 
 	// returns currently best matching recipe for ingredients, cooking- and
 	// ageingtime
-	public BRecipe getAgeRecipe(byte wood, float time) {
-		BRecipe bestRecipe = getBestRecipe(wood, time);
+	public BRecipe getAgeRecipe(byte wood, float time, boolean distilled) {
+		BRecipe bestRecipe = getBestRecipe(wood, time, distilled);
 
 		if (bestRecipe != null) {
 			if (bestRecipe.needsToAge()) {
@@ -240,7 +240,10 @@ public class BIngredients {
 	}
 
 	// returns the quality regarding the cooking-time conditioning given Recipe
-	public int getCookingQuality(BRecipe recipe) {
+	public int getCookingQuality(BRecipe recipe, boolean distilled) {
+		if (!recipe.needsDistilling() == distilled) {
+			return 0;
+		}
 		int quality = 10 - (int) Math.round(((float) Math.abs(cookedTime - recipe.getCookingTime()) / recipe.allowedTimeDiff(recipe.getCookingTime())) * 10.0);
 
 		if (quality > 0) {
diff --git a/src/com/dre/brewery/Barrel.java b/src/com/dre/brewery/Barrel.java
index ab9c7b2..2178051 100644
--- a/src/com/dre/brewery/Barrel.java
+++ b/src/com/dre/brewery/Barrel.java
@@ -79,6 +79,7 @@ public class Barrel {
 			if (inventory.getViewers().isEmpty()) {
 				// if inventory contains potions
 				if (inventory.contains(373)) {
+					long loadTime = System.nanoTime();
 					for (ItemStack item : inventory.getContents()) {
 						if (item != null) {
 							if (item.getTypeId() == 373) {
@@ -88,6 +89,9 @@ public class Barrel {
 							}
 						}
 					}
+					loadTime = System.nanoTime() - loadTime;
+					float ftime = (float) (loadTime / 1000000.0);
+					P.p.log("opening Barrel with potions (" + ftime + "ms)");
 				}
 			}
 		}
diff --git a/src/com/dre/brewery/Brew.java b/src/com/dre/brewery/Brew.java
index 87e70a5..af4974e 100644
--- a/src/com/dre/brewery/Brew.java
+++ b/src/com/dre/brewery/Brew.java
@@ -112,8 +112,11 @@ public class Brew {
 		if (currentRecipe != null) {
 			int alc = currentRecipe.getAlcohol();
 			alc *= ((float) quality / 10.0);
-			if (distillRuns > 1) {
-				alc *= (float) distillRuns / 2.0;
+			if (currentRecipe.needsDistilling()) {
+				// distillable Potions should have full alc after 6 distills
+				float factor = 1.4F / (distillRuns + 1);
+				factor += 0.8;
+				alc /= factor;
 			}
 			return alc;
 		}
@@ -121,12 +124,12 @@ public class Brew {
 	}
 
 	// calculating quality
-	public int calcQuality(BRecipe recipe, byte wood) {
+	public int calcQuality(BRecipe recipe, byte wood, boolean distilled) {
 		// calculate quality from all of the factors
 		float quality = (
 
 		ingredients.getIngredientQuality(recipe) +
-		ingredients.getCookingQuality(recipe) +
+		ingredients.getCookingQuality(recipe, distilled) +
 		ingredients.getWoodQuality(recipe, wood) +
 		ingredients.getAgeQuality(recipe, ageTime));
 
@@ -138,6 +141,17 @@ public class Brew {
 		return quality;
 	}
 
+	public boolean canDistill() {
+		if (distillRuns >= 6) {
+			return false;
+		} else {
+			if (currentRecipe != null) {
+				return currentRecipe.needsDistilling();
+			}
+		}
+		return true;
+	}
+
 	// return special effect
 	public String getEffect() {
 		if (currentRecipe != null) {
@@ -156,10 +170,10 @@ public class Brew {
 	// Distilling section ---------------
 
 	// distill all custom potions in the brewer
-	public static void distillAll(BrewerInventory inv, Integer[] contents) {
+	public static void distillAll(BrewerInventory inv, Boolean[] contents) {
 		int slot = 0;
 		while (slot < 3) {
-			if (contents[slot] == 1) {
+			if (contents[slot]) {
 				distillSlot(inv, slot);
 			}
 			slot++;
@@ -174,8 +188,7 @@ public class Brew {
 		BRecipe recipe = brew.ingredients.getdistillRecipe();
 
 		if (recipe != null) {
-			brew.quality = brew.calcQuality(recipe, (byte) 0);
-			P.p.log("destilled " + recipe.getName(5) + " has Quality: " + brew.quality);
+			brew.quality = brew.calcQuality(recipe, (byte) 0, true);
 			brew.distillRuns += 1;
 			// distillRuns will have an effect on the amount of alcohol, not the quality
 			if (brew.distillRuns > 1) {
@@ -184,6 +197,7 @@ public class Brew {
 				potionMeta.setLore(lore);
 			}
 			brew.currentRecipe = recipe;
+			P.p.log("destilled " + recipe.getName(5) + " has Quality: " + brew.quality + ", alc: " + brew.calcAlcohol());
 
 			potionMeta.setDisplayName(recipe.getName(brew.quality));
 
@@ -195,7 +209,7 @@ public class Brew {
 			}
 		} else {
 			potionMeta.setDisplayName("Undefinierbares Destillat");
-			slotItem.setDurability(PotionColor.GREY.getColorId(true));
+			slotItem.setDurability(PotionColor.GREY.getColorId(brew.distillRuns <= 5));
 		}
 
 		slotItem.setItemMeta(potionMeta);
@@ -210,11 +224,11 @@ public class Brew {
 			brew.ageTime += time;
 			// if younger than half a day, it shouldnt get aged form
 			if (brew.ageTime > 0.5) {
-				BRecipe recipe = brew.ingredients.getAgeRecipe(wood, brew.ageTime);
+				BRecipe recipe = brew.ingredients.getAgeRecipe(wood, brew.ageTime, brew.distillRuns > 0);
 				if (recipe != null) {
-					if (!recipe.needsDistilling() || brew.distillRuns > 0) {
+					//if (!recipe.needsDistilling() || brew.distillRuns > 0) {
 
-						brew.quality = brew.calcQuality(recipe, wood);
+						brew.quality = brew.calcQuality(recipe, wood, brew.distillRuns > 0);
 						brew.currentRecipe = recipe;
 						P.p.log("Final " + recipe.getName(5) + " has Quality: " + brew.quality);
 
@@ -249,7 +263,7 @@ public class Brew {
 						potionMeta.setDisplayName(recipe.getName(brew.quality));
 						item.setDurability(PotionColor.valueOf(recipe.getColor()).getColorId(false));
 						item.setItemMeta(potionMeta);
-					}
+					//}
 				}
 			}
 		}
diff --git a/src/com/dre/brewery/P.java b/src/com/dre/brewery/P.java
index 101792b..1dffd29 100644
--- a/src/com/dre/brewery/P.java
+++ b/src/com/dre/brewery/P.java
@@ -335,7 +335,8 @@ public class P extends JavaPlugin {
 
 		@Override
 		public void run() {
-			p.log("Update");
+			long time = System.nanoTime();
+
 			for (BCauldron cauldron : BCauldron.bcauldrons) {
 				cauldron.onUpdate();// runs every min to update cooking time
 			}
@@ -344,8 +345,16 @@ public class P extends JavaPlugin {
 
 			if (lastSave >= autosave) {
 				saveData();// save all data
+
+				time = System.nanoTime() - time;
+				float ftime = (float) (time / 1000000.0);
+				p.log("Update and saving (" + ftime + "ms)");
 			} else {
 				lastSave++;
+
+				time = System.nanoTime() - time;
+				float ftime = (float) (time / 1000000.0);
+				p.log("Update (" + ftime + "ms)");
 			}
 		}
 
diff --git a/src/com/dre/brewery/listeners/InventoryListener.java b/src/com/dre/brewery/listeners/InventoryListener.java
index 13f0b25..4dd162f 100644
--- a/src/com/dre/brewery/listeners/InventoryListener.java
+++ b/src/com/dre/brewery/listeners/InventoryListener.java
@@ -18,17 +18,21 @@ public class InventoryListener implements Listener {
 		BrewerInventory inv = event.getContents();
 		ItemStack item;
 		boolean custom = false;
-		Integer[] contents = new Integer[3];
+		Boolean[] contents = new Boolean[3];
 		while (slot < 3) {
 			item = inv.getItem(slot);
-			contents[slot] = 0;
+			contents[slot] = false;
 			if (item != null) {
 				if (item.getType() == Material.POTION) {
 					if (item.hasItemMeta()) {
-						if (Brew.potions.containsKey(Brew.getUID(item))) {
+						int uid = Brew.getUID(item);
+						if (Brew.potions.containsKey(uid)) {
 							// has custom potion in "slot"
-							contents[slot] = 1;
-							custom = true;
+							if (Brew.get(uid).canDistill()) {
+								// is further distillable
+								contents[slot] = true;
+								custom = true;
+							}
 						}
 					}
 				}