The spice rack can be built in the spice rack space of the kitchen in a player-owned house. It requires 60 Construction to build and when built, it gives 374 experience.
Players can use the spice rack to store up to 2,147,483,647 doses of brown, orange, red and yellow spices. The amount of spices a player withdraws will always be placed into new shakers. You do not need to be in building mode in order to store spices in the rack.
No other types of spices such as gnome spice nor spice can be stored in the spice rack.
Ultimate Ironman players may build the spice rack but are not able to make use of its storage.
The four doses of each spice noted in the materials are only used to create the spice rack. Additional spices are needed in order to have spices available for use in the spice rack. This does not give you free spices!