Sippy cups must be fully disassembled, washed with hot soapy water, scrubbed in all hidden areas, and completely air-dried to prevent mold growth and bacteria buildup.
It sounds simple. But most parents miss one small step. And that’s where the problem starts.
Sippy cups are designed with valves, silicone seals, and straws to prevent spills. Those same parts trap moisture and milk residue. If not cleaned correctly, mold can grow within 24–48 hours in warm conditions. A 2016 investigation by the BBC found hidden mold in several children’s “no-spill” cups when disassembled. Parents had cleaned them daily—but not thoroughly. Read more about How to Clean Sippy Cups Properly and Prevent Mold Growth …
