Crystal flask

Crystal flask is a members item, with a high alchemy value of 180 coins. No shop sells Crystal flask and no monster drops it, so an Ironman makes it: it takes 89 Crafting and gives 150 Crafting XP, using Crystal glass.

“A large, robust flask crafted from crystal glass.”

MembersTradeable (not for Ironmen)High alch 180 gp

Updated 9 October 2026. Sources from the RuneScape Wiki's drop, shop and recipe data (CC BY-NC-SA 3.0), checked 2026-10-09. Item sprite © Jagex.

Ironman verdict

Where the materials come from: Crystal glass (made with 75 Crafting and 77 Magic). Making ten takes 10 × Crystal glass and gives 1,500 Crafting XP. Reaching level 89 Crafting takes 4,842,295 XP in total; the Crafting calculator counts the actions and materials to any target, and the Crafting guide has the Ironman training route. 32 recipes use Crystal flask, including Aggroverload (6), Brightfire potion (6) and Extreme battlemage's potion (6). Crystal flask is members-only. It is tradeable on normal accounts, but an Ironman cannot use the Grand Exchange or trade for it, so the sources on this page are the whole list. High Alchemy turns one into 180 coins.