คำบรรยาย (116)
0:00this is waste from making apple and pear
0:04it's a mixture of skin pulp and seeds
0:08after squeezing the juice out about a
0:10third of the fruit is left over and
0:12cideries have to figure out what to do
0:22an argentine inventor saw a gold mine in
0:27jose alberto arenberry found a way to
0:30turn it into logs that can replace
0:32firewood and charcoal
0:37but in a country that's been barbecuing
0:39for centuries are people willing to
0:41break up with firewood
0:42we visited argentina to see how one
0:44company is using worldwide waste
0:50three rivers run through alto valley
0:52creating a patch of fertile ground
0:53perfect for growing apples and pears
0:57each year the country's apple cider
0:59industry alone creates about 75 000
1:02metric tons of leftovers this fruit
1:04waste is called pumice and it's the
1:06heart of jose's business biot
1:09it all started with a dried piece he
1:11took home to run some tests on
1:26realized pumice could be used for fires
1:29but the real challenge was figuring out
1:31how to turn tons of slushy fruit into
1:44he had lots to experiment with
1:46since cider makers like marcelo garcia
1:49are usually happy to have someone take
2:03making this cider starts with fruit that
2:05would have otherwise gone to waste
2:22on the way to the grinder the fruit
2:23travels through the factory in channels
2:28a belt of buckets lifts the fruit to a
2:41but the pumice can't get too dry or it
2:43won't move smoothly through the
2:46so the cidery adds water back into the
3:00says the promise has lots of uses like
3:02composting heating and making vinegar
3:14the biggest problem is moving the wet
3:22jose gets thomas delivered to his
3:24property by the truckload
3:47so far the cheapest option is simply
3:49dumping thomas on the ground and waiting
4:01then a worker uses a bulldozer to move
4:03the gunk into a specialized machine
4:22with the help of a tractor the machine
4:23dispenses a line of pumice onto the
4:25ground and slices it into brick shapes
4:41jose piles up the dry pieces
4:45he often tries out other systems like
4:47drying smaller batches in a rectangular
4:56the mold could help him make thinner
4:58bricks that don't need to be flipped
5:15he's considered making other products
5:16like animal feed but right now he only
5:18sells the so called bio logs
5:48jose says their different skills make
6:05she sells the logs to some local
6:07businesses and to people who use them at
6:10traditional argentine barbecues or
6:12asados date back to the 16th century
6:15nowadays lots of people use charcoal but
6:18some say wood gives me the best flavor
6:20so it's popular with restaurants
6:33jose says meat grilled with biot doesn't
6:57about the same amount of energy as
6:58regular firewood and burning them has
7:01about the same effect on air quality
7:04jose says it costs the same too
7:06and the business is profitable because
7:10customers have to come to his farm to
7:17in 2019 jose and christina supplied the
7:20local government with biot which gave it
7:22out to low-income households
7:24but elections brought in a new
7:25government that didn't renew the deal
7:27leaving them with almost 100 metric tons
7:31christina says their current processes
7:33are slow and difficult to scale up
8:00no matter what he's proud to leave
8:02behind a legacy of invention
