Making potions with Prescription goggles and an Alchemist's amulet: 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 and a charged Alchemist's amulet are worn. No separate Amulet of chemistry is worn, and the amulet's charges are loaded before the session begins. Prescription goggles have a 10% chance to prevent the secondary ingredients from being consumed. The primary potion or base ingredient is always consumed normally. 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 Alchemist's amulet does not affect this recipe because it does not create an eligible three-dose potion. It consumes no stored charges for this variant. Prescription goggles still apply to the secondary ingredients. The goggles remain equipped throughout the session and the amulet is charged beforehand. No additional clicks or downtime are included. The completed output, Herblore experience rate, click intensity, action speed, and afkiness remain unchanged. 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.