Making potions with Prescription goggles: Ancient brew

Method guide

Ancient brews boost Magic and restore Prayer while reducing several other combat stats, making them useful in Magic-focused setups. This variant combines one Dwarf weed potion (unf) with nihil dust for each Ancient brew(4). It assumes that Prescription goggles are worn, while no Amulet of chemistry or Alchemist's amulet is used. Prescription goggles have a 10% chance to prevent the secondary ingredients from being consumed for each successful potion-making action. The primary potion or base ingredient is always consumed normally. At the listed production rate, this variant would normally consume 1,960 secondary ingredients per hour. With the goggles, the expected consumption is 1,764, saving approximately 196 secondary ingredients per hour. The goggles do not change the completed output, Herblore experience per action, action speed, click intensity, or afkiness. They remain equipped throughout the session, so no additional clicks are required. The selected recipe produces the four-dose item directly, so no decanting is required. The quantities in this variant assume approximately 1,960 completed items per hour. Players should withdraw the potion bases together with the required quantity of the secondary ingredient, process the inventory, and restock as soon as the batch is complete.