They largely focus on stocking Lds families' pantries; as church leaders encourage them to keep a 2-year supply of food.
Indeed, the poor wind up benefitting -- because of the waterfall of always restocking according to can dates.
But that waterfall charity is home based; not Lds canneries...Obviously some Lds canneries food makes it directly to the poor...but that's not what these were designed to do.
Sources and funds for humanitarian work
All of these initiatives require manpower and while there are some full-time employees in administrative and clerical functions, there are also thousands of volunteer humanitarian missionaries. In emergency situations, local members and full-time missionaries who would normally devote their time to proselyting will participate in relief efforts, but in many of these more permanent initiatives the LDS Church uses Senior Missionary couples.
These couples are retired members of the LDS Church who devote six months to two years of their time to go anywhere in the world, typically at their own expense, to participate in these projects. Because of this volunteer force, the LDS Church is able to use 100 percent of money and goods donated in helping those in need. These missionaries often serve in activities related to their former profession. Doctors and nurses will serve medical missions either in the Neonatal Resuscitation programs or special missions to countries in need of dentists, eye doctors, surgeons and so forth. People with agricultural or engineering backgrounds will serve on the clean water initiative or else help farmers in developing countries.
Other members who are still working and raising families frequently donate time, money, and in-kind donations to help in these ventures. Members can volunteer at local canneries and farms to help produce food for the needy. They can volunteer to create the medical kits needed for doctors and new mothers in developing nations and many help make blankets for needy families. Many of these local initiatives are organized by the Relief Society. This volunteer force allows the LDS Church to reduce operating expenses and serve more people with their resources.
From 1985 - 2009, $327.6 million in cash and $884.6 million in commodities of aid was given throughout 178 countries