Casting Superglass Make with giant seaweed

Processing Moderate Members Ironman-friendly

108KGP/hr

600KCapital to start (~1 hour of inputs)

110/hrActions per hour (assumed)

Each giant seaweed counts as six seaweed, so one cast turns 18 sand into about 23 molten glass (1.3x bonus on average). Bank, withdraw, cast, repeat; the rate is bank-trip limited.

Requirements

Skills: 77 Magic
Quests: Lunar Diplomacy
Note: Lunar spellbook. One cast per inventory of 3 giant seaweed + 18 buckets of sand.

How to do it

Method rates and requirements here are independently authored. For the step-by-step guide, see the OSRS Wiki page (CC BY-NC-SA 3.0).

The math (per hour)

Item	Qty/hr	Unit	Total	1h volume
Molten glass	2,574	73	+187,902	202,197 limit 13,000/4h
Giant seaweed	330	69	−22,770	27,475 limit 11,000/4h
Bucket of sand	1,980	11	−21,780	164,765 limit 13,000/4h
Astral rune	220	114	−25,080	902,831 limit 25,000/4h
Fire rune	660	6	−3,960	9,761,616 limit 50,000/4h
Air rune	1,100	6	−6,600	10,404,152 limit 50,000/4h
Revenue			187,902
Costs			−80,190
Profit / hour			108K

Sell prices are after 2% GE tax (capped at 5M, items under 50 gp exempt). Inputs use the instant-buy price, outputs the instant-sell price — the conservative assumption. Buy-limit cap: none.

Prices updated 2 min ago. Figures are estimates: buy at instant-buy price, sell at instant-sell price after 2% GE tax.

Something wrong?

Rates, requirements or items off? Email us and we'll fix the data. Current figure: 110 actions/hr.