How to Make Potion Flasks in RuneScape

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 EatersMake Potion Flasks in RuneScape Step 1Bullet1.jpg Level 58 woodcutting (without any boosts), level 51 firemaking, and level 48 hunting (without any boosts)Make Potion Flasks in RuneScape Step 1Bullet2.jpg

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.

Achieve a mining level of 81. You can temporarily boost your mining level, but once the boost expires, you cannot mine red sandstone.

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.

Make robust glass. Use the red sandstone with the robust glass machine in Oo'glog.

Blow the glass into flasks. Use a glassblowing pipe with the robust glass to make flasks.