Initially, it could be profitable for you to know that in accordance with the Fatwa of Ayatollah Khamenei as a Marja’al-Taqlid of Shia Islam, working at the jobs which are related to the haram jobs, is not permissible; and its income would be haram as well. So, in the first step you ought to be sure that your business doesn't consider as an occupation which could be related to selling of haram thing(s). As a result, seemingly, if you are certain that those beverage and other things of the store are not considered as haram items, then it seems that it doesn't have any matter.
But at the second step, in regard to your inquiry about your job which could be related to Israel (Zionist), according to the Fatwa of Imam Khomeini, (as a response to an inquiry which was asked that Is the employment of Muslims in Jewish companies and institutes, knowing that they aid Israel, permissible or not? What if we don’t know if they aid Israel or not and receive our salary on a daily basis? Then, the answer of Imam Khomeini was:
Employment isn't permissible. The money they receive from working
there is also haram, and in the case of uncertainty, they shouldn’t go
into these institutes.
So, perhaps the reason which makes the business as a haram act (with them), it could be related to help the countries which are considered as the enemy of Islam.. Since for example, Ayatollah Hadawi-Tehrani also has the same Fatwa that:
Having business with foreigner people or Kufar or Ahl-al-Ketab
(primarily) is permissible. Of course it wouldn't be permissible if
there is a corruption such as helping to the enemy of Islam in the
trade.
Eventually, as the last part of your issue that you mentioned regarding the issue of charity, it could be necessary to point that although it is considered as a positive act (charity), but it could not miss the corruption of the main action.
Reference:
http://www.islamquest.net/en/archive/question/fa566
http://www.hadavi.info/fa/archive/question/fa817