Tada Shiawasena Isekai Kazoku Seikatsu - Vol. 2 Ch. 10 - Winter is Here!

[MangaDex]

 

[Pokari]

Just Typical Isekai "I bring civilization to these primitives" nonsense, but: If I had to make charcoal myself, I most certainly would not use it for hot water to wash my face every morning, and good god... for dishes? We just went over that someone had to watch the production process all night; they ain't getting it from the convenience store!

 

[Otherworlder]

Charcoal is also rather labour-intensive. Beyond constant monitoring of the fire, there's a lot of wood to gather. A lot of wood. You need to gather not only enough for the charcoal--and you get a lot less charcoal by mass than you started with--but you also need to gather enough wood to actually burn throughout the night. Though charcoal has a lot of advantages as a fuel compared with fire, it's pretty lossy, and can easily lead to deforestation without careful management. Remember that earlier the dad was concerned with getting enough wood for his son to write on as a play thing. Most notably however, is that learning how to make charcoal involves a lot of trial and error, and even experienced charbonniers sometimes lose entire batches just because they didn't get the airflow just right.