Decanting profit
43 workable decant routes right now — buy low-dose potions, decant free at Bob Barter, sell the 4-dose. Profit per 4-dose after GE tax, ranked by profit/hr at a realistic share of the route's recent trade volume. Updated 0s ago.
| Potion | Route | Buy at (per potion) | Cost (per 4-dose) | Sell at | Approx. profit (after tax) | Approx. profit (per hour) | ROI | Volume/hr | Buy limit | Updated | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Super defence | 3-dose → 4-dose | 2,289 gp | 3,052 gp | 3,398 gp | +279 | +15.7k | 9.14% | 5,362 | 2,000 | 3m ago | |
| Super strength | 3-dose → 4-dose | 1,781 gp | 2,375 gp | 2,705 gp | +276 | +15.5k | 11.62% | 10.2k | 2,000 | 4m ago | |
| Prayer potion | 3-dose → 4-dose | 5,951 gp | 7,935 gp | 8,311 gp | +210 | +11.8k | 2.65% | 11.2k | 2,000 | 4m ago | |
| Divine super combat potion | 2-dose → 4-dose | 7,601 gp | 15,202 gp | 17,247 gp | +1,701 | +10.5k | 11.19% | 82 | 2,000 | 6m ago | |
| Saradomin brew | 3-dose → 4-dose | 4,252 gp | 5,669 gp | 5,949 gp | +161 | +9,056 | 2.84% | 19.4k | 2,000 | 9m ago |
Showing the top 5 of 43 routes.
How decanting works
- Buy the low doses. Put in GE buy offers at the "Buy at" price — 1 gp over the insta-sell, the offer most likely to fill first. Making one 4-dose takes four 1-doses, two 2-doses, or four 3-doses per three 4-doses.
- Decant for free. Talk to Bob Barter at the north-west corner of the Grand Exchange — he combines your potions into 4-dose instantly, free, and works on noted potions, so you never have to leave the GE.
- Sell the 4-doses. List them at the "Sell at" price — 1 gp under the insta-buy. The profit column already has the 2% GE tax taken out.
Only routes that are profitable after tax and trading briskly enough to actually fill are listed — a juicy-looking margin on a potion nobody trades isn't real, so thin, stale-priced or price-spiking routes are hidden. The per-hour column assumes you capture a realistic slice (about 15%) of what the route's recent trade volume supports, capped by the buy limit (how many source potions you can buy per 4 hours) — you share the route with everyone else working it. Leftover empty vials are ignored (they're worth a few gp each).
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