That's not bottling. You just don't pay attention to it and then you forget about what you were angry and forget you even were angry.

You need to acknowledge to yourself that you are angry but only for the purpose of making a decission not to act on it and possibly postpone actions that you being angry might influence adversely.

Talking it through will only increase likelyhood that the memory of being angry will stick with you.

Bottling up your feelings is the other thing I describe where you keep your anger instead of letting it dissolve.