The frequency of changing hamster bedding mainly depends on factors such as the number of hamsters, season, and housing environment.

Number of Hamsters
- For 1–2 hamsters, replace bedding every 8–10 days.
- If housing 3 or more hamsters, replace bedding every 3–5 days to effectively eliminate odors.
Seasonal Variations
Summer
- High temperatures accelerate bacterial growth. Replace bedding every 3–4 days to keep it dry and prevent mold or bacterial buildup.
Winter
- Cooler temperatures reduce hamsters’ water intake and urine production. Bedding can be replaced every 7–10 days, but ensure it remains dry at all times.
Environmental Factors
Humidity
- In high-humidity environments, bedding dampens more quickly—shorten the replacement cycle.
- In low-humidity conditions, bedding stays drier, allowing for slightly extended cycles.
Ventilation
- Well-ventilated enclosures help keep bedding dry, reducing the need for frequent changes.
- Poorly ventilated spaces require more frequent bedding changes to prevent moisture accumulation.
Bedding Type Differences
- Wood shavings: Highly absorbent but prone to odor and dampness when wet. Replace daily or every 3–4 days in summer.
- Paper bedding: Good absorbency but low durability. Replace weekly.
- Corn cob litter: More durable but less absorbent. Replace every 2 weeks.
Adjusting based on these factors ensures a clean, healthy habitat for your hamsters while balancing practical care routines.