I've toyed with these types of ideas since i learned of bitcoin. The key here is we are crossing borders with a completely legal, lightly regulated industry.
My initial thoughts to make it secure is to, have someone on this end act as retailer/wholesaler who receives the product but also sells directly to customers either shipping or walk in.
The basics I have seen regarding green bean is that your looking for maybe 10-50cents/lb profit. In bitcoin this is okay, once things get going, you can absolutely lower your prices, beat the market, and have as reggie middleton calls it, margin compression, where if 2016 is projected to earn 10% profits on 1 million in revenue. 2017 will see 7% profits on 10million
2018 will see 4% on 100million
2020 will see 1% on 1 billion
2025 will see .1% on 100billion. <--- at this point everything is automated
. Keep that in mind also. no one owns it. It becomes an autonomous corporation. Farmer is connect directly to the end consumers economy/demands
How, go there and learn the farm side of things first hand. Learn the local culture, some language, make some friends. They know your not bullshitting as things have already improved a lot on the income side of things for in recent years, however I think there is still a way to go for them and the consumer.
But then to basically make the farmers your friends, while basically doing the same here, working to get to know all the coffee bean roasters, but you gotta get them buy using bitcoins and to ad the platform for their customers to buy the final product with their own bitcoins.
If you can sell 25,000 lbs of green coffee beans in the next 12 months at cost. 2000 lbs of coffee a month, or 500 lbs/week which basically means you need to find 10 people to buy at least 50 lbs of green coffee beans a week
So if you can find 10 coffee roasting businesses to buy 50 lbs/week, every week in bitcoin that is your start.. Once you accomplish that, it is your goal to hire a 3rd person, and each of your goals is to find new customers each week with the goal of 1 new customer each week who buys at least 50 lbs of coffee($200/week) After one year you will have a highly profitable company that will grow itself.
Don't worry about the money or this or that. Just be ready to sell some coffee beans..