On the surface, they look like innocuous lotus pods. But shouldn't this factory worker
in a briquette factory in Chuncheon be wearing a protective mask ?
Easier to deliver briquettes when the houses are down the road
They were easier to store, stack and transport and the holes drilled into them made burning more efficient. In fact, they were voted by Koreans in a 1970 survey as "the most important product of our time".
A gift of compassion, Korean-style
It was a locally produced and cheaper source of fuel and it did help to check deforestation as an alternative to firewood. However, it did have its drawbacks. It tended to pollute the air and occasionally people who were sleeping on ondol floors which weren’t sealed properly died from carbon monoxide poisoning. Still, as late as 1986, about 80 percent of homes around the country were using yontan.
Many hands make light work of delivering briquettes uphill
I'm not sure if I'd agree with Professor Andrei Lankov who believes that yeontan will eventually become extinct as more households have access to electricity. It's true that subsidies for them are being phased out to keep prices of other energy sources competitive but the demand for glue-bonded coal dust will be around for some time.
At the very least, the humble yeontan will remain part of the nostalgia for simpler but more heart-warming times as evident in this true account by Lim Yong-Ae. In her essay, she quotes some lines from a poet:
" Don't kick a spent yeontan thoughtlessly / Have you ever burned yourself like it with passion for someone else?"
Sources:
http://world.kbs.co.kr/english/news/news_photo_detail.htm?No=13915¤t_page=
http://world.kbs.co.kr/english/news/news_photo_detail.htm?No=13915¤t_page=
For How to make briquettes http://answers.yahoo.com/question/index?qid=20081001031957AAtrYBC



