Rwanda has a warm climate, and the people love milk. You'd think ice cream would be an easy sell.
But mention ice cream to Chantal Kabatesi, and she rubs her jaw like she's at the dentist with a toothache. When she first tasted ice cream at the age of 35 "it was like eating hailstones," the kind that fall on her childhood village once or twice a year.
"I thought, 'Oh no, what are we serving to our customers? Is it dangerous?' " she said.