Let us introduce you to hot joe on the go that you can heat up anywhere. Philadelphia-based La Colombe recently tested out new self-heating cans at its flagship cafe in the Fishtown neighborhood of the city. The first batch sold out in a matter of days. They have since restocked. While the Philadelphia-headquartered company has cafes across the country, the product was available first in Fishtown. The self-heating can plan has been in the works for about five years. Right now, it's available in two coffee varieties.