Robust glass

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Robust glass detail.png

Robust glass is a thick type of glass used for creating potion flasks. 10 of them can be used to create an ogre flask. It is created by melting red sandstone in a robust glass machine, which can be found southwest of the mud bath in Oo'glog or by the pottery oven in the Ithell district of Prifddinas. The machine requires completion of As a First Resort to use. It can also be made by casting the superglass make spell on red sandstone.

It is also given in varying amounts by Chief Tess as the recurring reward for completing each of her Archaeology Collections. The first of which - Blingy Fings - requiring 69 Archaeology to complete.

Melting red sandstone has no skill requirements, but creating potion flasks from robust glass requires level 89 Crafting and gives 100 Crafting experience. This requirement can be boosted, but it cannot be assisted. Strange and golden crafting rocks can be obtained from creating potion flasks.

A player using the machine to make robust glass
Audio options icon.png
The sound that plays when operating the Robust glass machine.

Creation[edit | edit source]

Robust glass.png Robust glass
Crafting-Hourglass.pngMake-X GE icon.png
0 XP-11 (6.6s) [r 1]-
Crafting Crafting level1
Quests Completed As a First Resort
P2P icon.png Members only
Red sandstone.pngRed sandstone1N/A-
  1. ^ All items are created in the same tick

Products[edit | edit source]

This is an auto-generated list (update now), and shows the first 100 items alphabetically. For all items, click here.

Disassembly[edit | edit source]

Update history[edit | edit source]

This information has been compiled as part of the update history project. Some updates may not be included - see here for how to help out!
  • patch 3 June 2019 (Update):
    • Robust glass once again defaults to crafting potion flasks instead of ogre flasks.
  • patch 20 May 2019 (Update):.
    • Stopped crafting robust glass from defaulting to potion flask when trying to craft ogre flasks

Trivia[edit | edit source]

  • An update in May 2017 changed the colour from purple to yellow in the inventory, but the dropped item remains purple.