Dynamically adjust cache duration?

Is it possible to dynamically change the cache duration? I would like to have a configuration in app configuration to govern how frequently the cache should be renewed, and then I could adjust it without having to restart the app.

This is important because, for example, when we launch a new feature we decrease the cache to about 30s and as we get more confident about it, we up this to 1m, then 5m, then 10m... each one of these requires a whole new deploy