The process is simple. Yeast colonies thrive in glass containers with only flour, water, and occasional sugar. Within hours of feeding, the mixture undergoes a fascinating change — bubbling while sending out a typical wine-like smell. Apparently, this is enough for young people looking for easy companionship. “No need to walk it, no mess, it’s worry-free and easy to look after!” one person wrote on a community board dedicated to pet yeast owners. “If you don’t want to keep it anymore, just add more flour and turn it into steamed buns to eat; there is no psychological burden,” another yeast “parent” commented.

Zhao Meng, director of the Department of Psychology at Wuhan Wudong Hospital, believes that young people’s enthusiasm for static pets comes from the accumulation of academic, work, and economic pressures. Compared with traditional pets that require a lot of time and money, static pets like pet yeast are low-cost and easy to care for. There is no need to take on responsibilities such as walking and bathing it, which is in line with the increasingly popular “lazy healing” lifestyle. Du Hemin, a psychotherapist at Wuhan Wudong Hospital, added that static pets provide owners with “secure attachment”. They are not going to get sick, and they don’t need constant attention. 

These low-maintenance companions provide predictable comfort in unpredictable lives. As one person on the Internet said, “They deliver small but certain joy” — a contrast to traditional pets whose illnesses or misbehavior cause stress. While some might question the emotional depth of bonding with static pets, supporters argue these special pets fulfill a fundamental human need: the desire for companionship without burden, offering a real yet undemanding presence in lonely urban existences.