Old School RuneScape Wiki

Molten glass detail.png

Molten glass is used in the Crafting and Construction skills, as well as some quests, to form glass items. It is used in construction for bedroom hairdressers, and skill rooms.

Molten glass can be created through the Crafting skill by using a bucket of sand and soda ash (both can be bought at a charter) on a furnace, granting 20 Crafting experience. Alternatively, you can use the lunar spell Superglass Make, which converts all buckets of sand and all seaweed or soda ash into molten glass, granting 10 Crafting experience per pair of items.

In order to make many of the items, you have to use a glassblowing pipe.

Molten glass is used in some quests such as Observatory Quest, Horror from the Deep, and Another Slice of H.A.M.


  • All the ingredients for making molten glass (seaweed and sand) can be found on the island of Entrana, though you will need to bring your own buckets. There is a Tool leprechaun found near the Hops patch on Entrana from whom you can withdraw buckets if you have them. There is a range for cooking seaweed into soda ash and a furnace to make the molten glass. There is even a glassblowing pipe spawn in a nearby house.

Dropping monsters

Monster Combat level Quantity Rarity
Thermonuclear smoke devil 301 100 (noted) 3; Uncommon

Craftable items

Image Item Level Exp Notes
Beer glass.png Beer glass 1 17.5 Used to contain beer or sq'irk juice.
Empty candle lantern.png Empty candle lantern 4 19 Can be lit to lighten dark areas once a candle is added.
Empty oil lamp.png Empty oil lamp 12 25 Can be lit to lighten dark areas.
Vial.png Vial 33 35 Can be filled with liquid to make potions via Herblore.
Empty fishbowl.png Empty fishbowl 42 42.5 Can be used to contain pet fish or in Recipe for Disaster Pirate Pete part.
Unpowered orb.png Unpowered orb 46 52.5 Can be powered into any of the four elemental orbs.
Lantern lens.png Lantern lens 49 55 Can be combined with lantern frames to make bullseye lanterns.
Light orb.png Light orb 87 70 Can be traded only after adding a cave goblin wire to it.