Pasteur's HomoGenius Smart Milk is an aspiration reward that was added in The Sims 2. The Smart Milk unit is a cross between a laboratory centrifuge and a bottle warmer. It contains five bottles. Smart Milk is only useful if there is a toddler in the household. The player can select a teen, adult, or elder Sim, and tell that Sim to make Smart Milk for any toddler in the household. The Sim will get the toddler, bring him or her to the Smart Milk unit, and attempt to use it. (Smart Milk can also be given to a toddler who has been placed in a high chair.) If the use is successful, the unit will spin briefly and produce a glowing green bottle.