They didn't buy food. They gathered, grew it, hunted, or traded for food. There were no Wal Marts in the world in their time.
they caught their food by hunting and fishing.
They did not buy but used a barter system of trade for goods such as meat and agriculture food products.
Chocolate was a delicacy by the Aztecs.
food
how do the aztec store there food
they grew crops
corn
Food
chocolate
Corn
mostly maize
the right way