While previous cooking hearths could not provide food for a large number of people due to the time and effort required, kamado could supply a lot of people with meals by using high temperature and continuous and concentrated cooking, and this caused the centralization of the population caused by this, and can be seen to have promoted civilization.
従来の炉が調理に手間が掛かっていたために食が賄える人の数はそれほど多くなかったのに対し、竈では高温での連続集中調理で多くの人の食事が賄え、これにより人口の集中が発生、そこに文明が育まれたとみなすことも出来よう。