It looks really good.

I like this game. It is a perfect theme for a summer jam :) The title graphics are awesome and the sfx and music fit the game well. Obviously there is a lot to improve on it but I like the concept of managing resources and keeping the customers happy! A couple of times I re-stocked and spent most of my profits and no-one showed up the next day for juice which sucks XD

I had fun with this!

• when I try to make watermelon nectar, I'm told I don't have any "grape". When I click on the pineapple icon without having any pineapple, it still makes it, but uses watermelon instead.
• If I have the supplies for one of the drinks the customer wants, but not the other, why am I not able to make the one drink for them and offer a refund on the other for partial credit?

Is there a way to know what all items it takes to make the different drinks and whether or not I can fill an order without wasting product trying to fill orders. I have been having a lot of problems with the resource management part of this game.

this was fun!  

My only real feedback would be that the layout of the UI layout is a bit confusing.

Because your stand is on the right and the customers approach from the left, I would recommend re-shuffling things so that all the customer side information (drink request, money offered) is displayed on the left and all the player side information (queued drinks, change) is displayed on the right.  

the 'window into parallax' effect on the title logo is awesome!