If some of the juice arrives partially or completely defrosted, it's safe to place it back into the freezer for safe keeping. If it arrives fully defrosted and the bottle is still cold, it is safe to put it back into your freezer. However, if it is warm, we suggest you discard the juice and do not consume it. Please reach out to us at support@drinkkojuice.com and we'll take care of this issue.