There are two options to change your email account.
1. Use the same account with a different email address
This can simply be changed in the 'profile > settings wheel' section in the app or the account information section in the Brewery Portal.
2. Connect a new account with the MiniBrew
If you want a completely different account to use the MiniBrew it should first be unregistered from the currently connected account.
In the app
this can be done by going to 'profile > settings wheel > manage devices > select a device > tap unregister'
Setting wheel (top right corner)
In the Brewery Portal
by going to a specific device > unregister
in the portal this can be done in the 'brewery' section.
Once the machine is unregistered it can be registered by a different account with a different email address.