Hopper

Hopper

Type	Sorting
Stackable	Yes (64)
Damage	{{{damage}}}
Protection	{{{protection}}} x
Durability	{{{durability}}}
First Appearance	2.10
Filtering	{{{filters}}}
Buoyancy	{{{buoy}}}
Gravity	{{{gravity}}}
Flammable	{{{flammable}}}
Data Value	{{{data}}}

While it appears deceptively simple (it's basically a box with a hole in it), the hopper allows the construction of many advanced mechanisms. Items that fall into the top of the hopper are added to its inventory. If the hopper receives Mechanical power through a axle or hand crank mounted on the side of the hopper, items from the hopper inventory will start ejecting out the spout on the bottom of the hopper (and stop when power it cut). Items may be ejected into the air, directly into any other block that has an inventory (chest, dispenser, etc.), or a minecart with chest parked beneath it. If all the slots in a hopper inventory contain items, the hopper will produce redstone power. As the power output will stop once there is a empty slot in the hopper inventory, the redstone power can be used in builds to signal that the hopper is getting full (for example you can place redstone dust between the hopper and a Light Block.

Crafting

Name	Ingredients	Input » Output
Hopper	Gears, Wooden Corner, Wooden Pressure Plate, Wooden Siding

Filtering

The hopper also contains an extra inventory slot in which you may place various items that act as a filter so you can determine what items can enter the hopper inventory. By combining multiple hoppers with different filters and a stream of water, you can sort the items produced by a mob trap or farm.

The types of hopper filters and what items will or will not pass through the filters are described in the following table.

Filter	Blocked	Enters Hopper	Examples that enter hopper	Misc. Effect
Soul Sand	Everything	Nothing		Will turn Ground Netherrack into Hellfire Dust, Soul Dust into Saw Dust and Dragon Orbs into XP
Wicker	Not powdery	Powdery	Flour, Gunpowder	Will turn gravel into flint and sand
Slats	Thick	Thin	Paper, String
Grate	Large Items	Small Items	Feathers
Trapdoor	Max. Stack<64	Max. Stack=64	Coal, Torches
Iron Bars	Unstackable items	Stackable items
Ladder	Blocks	Items

Applications

• Collecting items
• Automated chest loading
• Automated drop sorting
• Automated refilling of any block that has an inventory
• Automated loading of minecarts with chests
• Filtering Ground Netherrack into Hellfire Dust

Keep in Mind

• The redstone power emitted from a hopper without a empty inventory slot will reach the block beneath it. So a powered rail placed below the hopper will become powered if the hopper has no empty inventory slots.
• You may place multiple hoppers in a horizontal trench. But to keep the items/blocks separated put another block between each hopper.
• Hoppers are flammable and will be destroyed if caught on fire.
• If gravel passes through a wicker filter, it will be converted into sand and flint. The flint will remain on top of the hopper or continue along the stream of water.
• Beware when filtering Ground Netherrack! Dropping more than 7 units of ground netherrack into the top of an unpowered Hopper without replacing the soul sand will cause the hopper to break, destroying one of the gears, the wooden corner, and the wooden pressure plate. It will also spawn you a cuddly new friend.
• A hopper with a soul sand filter can only hold a maximum of 100 XP. When powered it will drop a large XP orb as soon as enough small orbs have been collected.
• Heads/Skulls are blocks and not items, thus will be blocked by iron bars.

Full filtering list (X = Enters Hopper)

Item	Ladder	Iron Bars	Trapdoor	Grate	Slats	Wicker
Apples	X	X	X	X
Arcane Scrolls	X	X	X	X	X
Armor	X
Armor Plate	X	X
Arrows	X	X	X
Barks	X	X	X	X	X
Bat Wing	X	X	X	X	X
Bed	X
Belt	X	X	X
Blaze Powder	X	X	X	X	X	X
Blaze Rod	X	X	X
Boat	X
Bone	X	X	X
Book	X	X
Book and Quill	X
Bottles	X	X
Bowl	X	X
Bread	X	X
Breeding Harness	X	X
Brewing Stand	X	X
Bricks	X	X
Brimstone	X	X	X	X	X	X
Broadhead	X	X	X	X
Bucket (empty)	X	X
Bucket (filled)	X
Cake	X
Candle	X	X
Canvas	X	X
Carrot on a Stick	X		X
Cauldron	X	X
Charcoal	X	X	X	X
Chicken Soup	X	X
Chocolate	X	X	X	X
Chowder	X	X
Cistern	X	X
Clay Ball	X	X	X	X
Clock	X	X
Coal	X	X	X	X
Coal Dust	X	X	X	X	X	X
Cocoa Beans	X	X	X	X
Compass	X	X
Cookies	X	X	X	X
Concentrated Hellfire	X	X
Cooked Carrot	X	X
Cream of Mushroom	X	X
Creeper Oysters	X	X	X	X
Diamond	X	X	X	X
Dinners	X	X
Donut	X	X	X	X
Doors	X
Dung	X	X	X	X
Dyes (except Dung and Ink Sacs)	X	X	X	X	X	X
Dynamite	X	X
Eggs (except Scrambled Eggs)	X	X	X	X
Emerald	X	X
Ender Pearl	X	X	X	X
Ender Slag	X	X	X	X	X	X
Eye of Ender	X	X	X	X
Fabric	X	X			X
Feather	X	X	X	X
Filament	X	X	X	X
Fire Charge	X	X
Fireworks	X	X
Fishing Rod	X		X
Flint	X	X	X	X
Flour	X	X	X	X	X	X
Flowers	X	X	X	X
Foul Food	X	X
Fuse	X	X	X	X	X
Gear	X	X
Ghast Tear	X	X	X	X
Glistering Melon	X	X
Glowstone Dust	X	X	X	X	X	X
Glue	X	X
Gold Nugget	X	X	X	X
Grate	X	X
Gravel Block	X	X	X	X	X
Gravel Slab	X	X	X	X
Ground Netherrack	X	X	X	X	X	X
Gunpowder	X	X	X	X	X	X
Haft	X	X	X
Ham and Eggs	X	X
Hearty Stew	X	X
Hellfire Dust	X	X	X	X	X	X
Hemp	X	X			X
Hemp Fiber	X	X	X	X	X
Ingots	X	X
Ink Sac	X	X	X	X
Iron Nugget	X	X	X	X
Kebabs	X	X
Kibble	X	X	X	X
Leathers	X	X			X
Magma Cream	X	X
Map	X	X			X
Meat	X	X
Melon Slice	X	X
Minecarts	X
Mould	X	X
Mushrooms	X	X	X	X
Music Discs	X
Nether Brick	X	X
Nethercoal	X	X	X	X
Nether Groth Spores	X	X
Nether Quartz	X	X
Nether Sludge	X	X
Nether Star	X	X	X	X
Nether Wart	X	X	X	X	X	X
Nitre	X	X	X	X	X	X
Ocular of Ender	X	X
Omelets	X	X
Padding	X	X
Painting	X	X
Paper	X	X	X	X	X
Pile of Gravel	X	X	X	X
Pile of Sand	X	X	X	X	X	X
Pile of Soul Sand	X	X	X	X	X	X
Potash	X	X	X	X	X	X
Potions	X	X
Pumpkin Pie	X	X
Redstone Dust	X	X	X	X	X	X
Redstone Eye	X	X	X	X
Redstone Repeater	X	X			X
Redstone Torch	X	X
Rope	X	X	X
Rotten Flesh	X	X
Saddle	X
Sail	X
Sand	X	X	X	X	X	X
Sand Slab	X	X	X	X	X	X
Saplings (except Bloodwood)	X	X
Saw Dust	X	X	X	X	X	X
Scrambled Eggs	X	X
Screw	X	X
Seeds	X	X	X	X	X	X
Shaft	X	X	X
Sign	X	X
Slats	X	X
Slimeball	X	X	X	X
Snowball	X	X	X	X
Soap	X	X	X	X
Soul Dust	X	X	X	X	X	X
Soul Flux	X	X	X	X	X	X
Soul Urn	X	X
Spider Eye	X	X	X	X
Steak and Potatoes	X	X
Strap	X	X	X		X
String	X	X	X	X	X
Sugar	X	X	X	X	X	X
Sugarcane	X	X	X
Tallow	X	X
Tasty Sandwiches	X	X
Tools1	X
Torch	X	X
Tuning Fork	X	X
Urns	X	X
Vegetables (except Cooked Carrots)	X	X	X	X
Venom Sack	X	X	X	X
Water Wheel	X
Weapons	X
Wheat	X	X	X
Wicker	X	X
Wind Mill	X
Wool Balls	X	X	X	X	X
Wood Blade	X

1 All tools except Carrots on a Stick, Clocks, Compasses, Fishing Rods, and Stakes will only enter a hopper with a ladder filter or no filter.

If something is not listed individually or in a category, it can only enter a hopper with no filter.

Demonstration Video

Battosay VS The Gravel recycler

Battosay's Advanced Storage System Tutorial