diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/PatternStorageBlockEntity.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/PatternStorageBlockEntity.kt
index 222f0d67c..39365b5ea 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/PatternStorageBlockEntity.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/PatternStorageBlockEntity.kt
@@ -17,6 +17,7 @@ import net.minecraft.world.level.Level
 import net.minecraft.world.level.block.Block
 import ru.dbotthepony.mc.otm.block.entity.MatteryDeviceBlockEntity
 import ru.dbotthepony.mc.otm.capability.matter.*
+import ru.dbotthepony.mc.otm.container.HandlerFilter
 import ru.dbotthepony.mc.otm.container.stream
 import ru.dbotthepony.mc.otm.core.collect.iterator
 import ru.dbotthepony.mc.otm.core.filterNotNull
@@ -75,7 +76,7 @@ class PatternStorageBlockEntity(p_155229_: BlockPos, p_155230_: BlockState) :
 		}
 	}
 
-	val itemConfig = ConfigurableItemHandler(inputOutput = container.handler { _: Int, stack: ItemStack -> stack.getCapability(MatteryCapability.PATTERN).isPresent })
+	val itemConfig = ConfigurableItemHandler(inputOutput = container.handler(HandlerFilter.IsPattern.and(HandlerFilter.OnlyIn)))
 
 	override fun setLevel(level: Level) {
 		super.setLevel(level)
diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/container/HandlerFilter.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/container/HandlerFilter.kt
index c36c8af12..ce8051302 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/container/HandlerFilter.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/container/HandlerFilter.kt
@@ -3,6 +3,7 @@ package ru.dbotthepony.mc.otm.container
 import net.minecraft.world.item.ItemStack
 import net.minecraftforge.common.ForgeHooks
 import net.minecraftforge.common.capabilities.ForgeCapabilities
+import ru.dbotthepony.mc.otm.capability.MatteryCapability
 import ru.dbotthepony.mc.otm.core.ifPresentK
 import ru.dbotthepony.mc.otm.core.isNotEmpty
 
@@ -107,4 +108,10 @@ interface HandlerFilter {
 			return ForgeHooks.getBurnTime(stack, null) > 0
 		}
 	}
+
+	object IsPattern : HandlerFilter {
+		override fun canInsert(slot: Int, stack: ItemStack): Boolean {
+			return stack.getCapability(MatteryCapability.PATTERN).isPresent
+		}
+	}
 }
diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/container/MatteryContainer.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/container/MatteryContainer.kt
index 186726e8a..060b8804b 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/container/MatteryContainer.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/container/MatteryContainer.kt
@@ -211,33 +211,10 @@ open class MatteryContainer(protected val watcher: Runnable, private val size: I
 		return false
 	}
 
-	fun handler(
-		insert_validator: (slot: Int, stack: ItemStack) -> Boolean,
-		extract_validator: (slot: Int, amount: Int, stack: ItemStack) -> Boolean
-	): ContainerHandler {
-		return ContainerHandler(this, object : HandlerFilter {
-			override fun canInsert(slot: Int, stack: ItemStack) = insert_validator(slot, stack)
-			override fun canExtract(slot: Int, amount: Int, stack: ItemStack) = extract_validator(slot, amount, stack)
-		})
-	}
-
-	fun handler(
-		filter: HandlerFilter
-	): ContainerHandler {
+	fun handler(filter: HandlerFilter = HandlerFilter.Both): ContainerHandler {
 		return ContainerHandler(this, filter)
 	}
 
-	fun handler(insert_validator: (Int, ItemStack) -> Boolean): ContainerHandler {
-		return ContainerHandler(this, object : HandlerFilter {
-			override fun canInsert(slot: Int, stack: ItemStack) = insert_validator(slot, stack)
-			override fun canExtract(slot: Int, amount: Int, stack: ItemStack) = false
-		})
-	}
-
-	fun handler(): ContainerHandler {
-		return ContainerHandler(this)
-	}
-
 	open fun getMaxStackSize(slot: Int) = maxStackSize
 
 	open fun getMaxStackSizeWithItem(slot: Int): Int {