the problem: it's likely that you'll get your pricing wrong. in other words, when you're gonna be selling fake food to food retailers, you'll charge them the wrong price per piece...this error will lead to you taking much longer to break even, meet your hurdle rate and turn cash flow positive. it's also likely to send you broke before you can break even. it's "likely" because entrepreneurs make this mistake all the time.
the solution: get your pricing right. pricing consists of correctly balancing a four factor equation - your costs (fixed and variable), how much the customer is willing to spend, what the competitors charge and your requirement for a profit
right now, most probably, out of this equation, you know less than one of these four points. in other words, you only know your variable cost (i.e. how much you will be charged to buy fake food from fake food manufacturers), you don't know your fixed costs, how much food retailers would pay for this stuff, what your competitors are charging, or what your hurdle rate is.
so...the tip is..to prevent your self from screwing up your pricing, balance the four factor pricing equation.