Thanks for the feedback :)
Yes, that's right, a reaction would probably be a good idea.
You have 3 lives for each day. These are displayed on the right at the checkout. So if you are too slow or make a wrong order, one life will be deducted. I should probably place it in a more conspicuous location.
I wanted it to be that way on purpose, so that you can't see the recipe and have to remember things, but maybe there were a few too many ingredients for level 1