Food Empire Multiple Upgrader Use

Food Empire but there is no limit with the number of time you can use an upgrader (EXCEPT FOR UPGRADER THAT DEPENDS ON THE VALUE OF THE FOOD) WARNING : The toothpick shooter don't work ... So the toothpick sharpener and the sandwich doubler don't work too . Also i got the idea of creating a Discord server for food empire vanilla + modded so if you see me in the game, give me your opinion .