Beer

Beer is a free-to-play item on the OSRS Grand Exchange in the other category.

In-game examine text: "A glass of frothy ale."

It has a Grand Exchange buy limit of 2,000 every four hours, a high alchemy value of 1 gp, and item ID 1917.

View on OSRS Wiki

Beer shows an active flip setup with a margin of +5 gp and 29,057 trades over the last 24 hours.

At the buy limit of 2,000 every four hours, max profit per cycle is about 10.0k gp — high margin with healthy liquidity.