How to Make Potion Flasks in RuneScape

Last Updated: October 21, 2021

Unlike vials, flasks are very helpful in fights since they carry a maximum of 6 doses instead of 4. Once a flask is consumed/used and completely emptied, it automatically breaks.

Steps

1
Complete the "As a First Resort..." quest. For this specific quest, you will need to meet the following requirements:
- Completion of all the following quests: Druidic Ritual, Jungle Potion, Big Chompy Bird Hunting, and Zogre Flesh Eaters
- Level 58 woodcutting (without any boosts), level 51 firemaking, and level 48 hunting (without any boosts)
2
Achieve a crafting level of 89. You can temporarily boost your crafting level, but once the boost expires, you cannot make flasks with the machine.
3
Achieve a mining level of 81. You can temporarily boost your mining level, but once the boost expires, you cannot mine red sandstone.
4
Mine red sandstone. Around Gielinor, there's only two locations - East of Sophanem (after you have completed the elite desert tasks) and Oo'glog. The Sophanem location produces 25 sandstone a day, while the Oo'glog location produces 50 to 75 a day.
5
Make robust glass. Use the red sandstone with the robust glass machine in Oo'glog.
6
Blow the glass into flasks. Use a glassblowing pipe with the robust glass to make flasks.