Short answer: 125 degrees Fahrenheit.
Long answer: it depends.
We don’t recommend using the Bouncer above 125 degrees Fahrenheit.
We don’t recommend heat sterilizing the Bouncer.
The manufacturer gives these specs:
- 150 PSI at 70 degrees Fahrenheit
- 100 PSI at 125 degrees Fahrenheit
We designed the bouncer for typical home brewing applications. This means:
- low pressure ( less than 20 PSI)
- low temperatures (less than 100 degrees Fahrenheit)
Heat sterilizing may deform the plastic so that the filter would not function.