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This idea is both food waste and cost effective, it’s a good way of hitting two areas that require aid.
It effects food waste by encouraging restaurants to serve smaller portions depending on the person. The smaller portions will result in multiple positive effects on people and the food industry.
However, the major problem in this system is, how will you get people to eat at these restaurants and how will you get bigger corporation restaurants to change portions for the certificates.
I would encourage people to eat at the restaurants that are awarded certificates discount like system. If a person eats at a location that has acquired the certificate and has the meal in accordance with the certificates regulations they get reward points. They can then use the points to get a free meal if they so choose from any location with a meal that meets the certificates requirements. As a result, people are rewarded for eating certain meals in certain places.
As for getting bigger companies involved, I would negotiate with them about various foods they would be willing to change as well as implementing a similar rewards system as referenced earlier.
I wish you the best of luck and I hope all goes well with your program.

Your idea has a different approach, and a good one at that. The use of leftover bread to make beer appears to be an effective way to reuse the wasted grain. However, logistics for distribution are apparent and the ability to expand your horizons appear limited. The logistics being the more important of the two.
The problem I see in the logistics is distribution. It’s not even a problem necessarily but rather a recommendation. If your company is to expand, I would begin finding small local locations to partner with. Then sell your stock on the shelf and get feedback from the masses. The solution to distribution the stock would be looking into the use of big brand transport trucks for drinks.
This will have a positive impact of on multiple parts of your system. It will allow for the feedback to be taken into account for a better brew. On top of that, the wider distribution of the stock would cause word of your stock to increase. In addition it would have a positive effect on marketing and sales.
The next problem of your system is that you are isolated the use of bread. This can lead to a very plain tasting stock that may get distasteful quickly. To resolve this I would begin to look into other methods of brewing leftover stock from farms. Possibly drying out fruits or vegie and creating a brew from the composite might work.
I will be looking forward to seeing how things develop and expand, best of luck


Ryan commented on Re-Plate: Re-plating Surplus Meals

Summary: Wasted food is brought to businesses for reserving or can be bought directly from the patron giving out the wasted food.
This program has many benefits that make it a very ideal program. It keeps consumers from wasting what they won’t eat. It then re-purposes the food into newer and cheaper meals for the public. This program also has a large area of operation proving that it works without much question.
The problem with this program is sanitation. During the life cycle of the food from waste to re-plate, there is a point where the food can be tampered with. The food can be poisoned or be altered in a way that isn’t lethal but could be harmful.
In the system presented by Re-Plate, the space to be worried about is the transition from donor to market. The system starts with someone having left over food. That food is then donated to Re-Plate to be packaged and stored. It is during this time that the tampering of food can occur. Next, the food can be bought at the market or delivered to a person or business that requests that meal or food type. The result is a continuous cycle of wasted food being repurposed over and over again. The closest to expired food is also used first, this way the food never goes bad before consumption.
My recommendation is that record of donors, if not already being done, be taken from now on. This would allow an investigation, should one occur, narrow the results down to the correct convict. This is not an ideal fix but one that will work as a placeholder.