Simple cooking methods flush arsenic out of rice (2015) • Hacker News Board

Re: Simple cooking methods flush arsenic out of rice (2015)

#21

Post by Havoc » Sun, Apr 21, 2019, 8:53 PM UTC

DanBC wrote: post #8

deegles wrote: post #2

> “The team then cooked rice in an apparatus that continually condenses steam to produce a fresh supply of distilled hot water” What device is that?

---begin--- Cooking rice in where percolating cooking water is recycled through condensation Here all 41 samples of bought rice were cooked in a standard Soxhlet apparatus. Rice grain, fresh from the packet, was accurately weighed (2g) into a VWR Soxhlet thimble and was then placed into an 25cm long and 3.5cm diameter Quickfit Soxhlet which was attached to a 250ml receiving flask at one end and a dimpled Vigreux 25cm…

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I am a robot

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Re: Simple cooking methods flush arsenic out of rice (2015)

#22

Post by lefty2 » Sun, Apr 21, 2019, 8:55 PM UTC

Cooking rice that way makes it taste worse. Better to use rice that doesn't have arsenic in it in the first place. Asian grown rice has the lowest amount of arsenic: https://nutritionfacts.org/video/which-brands-and-sources-of...

Re: Simple cooking methods flush arsenic out of rice (2015)

#23

Post by jayalpha » Sun, Apr 21, 2019, 9:05 PM UTC

patrickg_zill wrote: post #19

jayalpha wrote: post #11

Wow. Nature. But then, really? Sounds to me like a terrible idea. 1. Consumes much more water than needed now. 2. Consumes much more Energy than needed now. 3. Yes, you leach out part of the Arsenic for sure, sounds like a "continuous extraction process". Rice contains nutrients and vitamins. How about them?

Consumes water? What is the water changed into at the molecular level, exactly?

Waste water? You realize there is a difference between drinking water, "Grey water" and waste water?

Sure, just a few liters of drinking water wasted. Now lets 1.5B Indians, 1.2 B Chinese and a bunch of other Asian countries do this, where people eat rice every day.

Re: Simple cooking methods flush arsenic out of rice (2015)

#24

Post by amelius » Sun, Apr 21, 2019, 9:21 PM UTC

Why doesn't my rice nutrition facts label indicate the amount of arsenic in my rice?

Re: Simple cooking methods flush arsenic out of rice (2015)

#25

Post by philliphaydon » Sun, Apr 21, 2019, 9:49 PM UTC

Rice contains arsenic??? I just found out a few days ago my favourite vege, bamboo shoot, contains cyanide... and is sold pre boiled to remove it...

Re: Simple cooking methods flush arsenic out of rice (2015)

#26

Post by sjg007 » Sun, Apr 21, 2019, 9:52 PM UTC

philliphaydon wrote: post #25

Rice contains arsenic??? I just found out a few days ago my favourite vege, bamboo shoot, contains cyanide... and is sold pre boiled to remove it...

Broccoli contains cyanide too. The rice arsenic thing is a bigger deal though. Some enterprising entrepreneur needs to come out with a percolating rice maker.

Re: Simple cooking methods flush arsenic out of rice (2015)

#27

Post by philliphaydon » Sun, Apr 21, 2019, 9:55 PM UTC

sjg007 wrote: post #26

philliphaydon wrote: post #25

Rice contains arsenic??? I just found out a few days ago my favourite vege, bamboo shoot, contains cyanide... and is sold pre boiled to remove it...

Broccoli contains cyanide too. The rice arsenic thing is a bigger deal though. Some enterprising entrepreneur needs to come out with a percolating rice maker.

It’s clearly a sign. Vegetables are tying to kill us. :( apparently bamboo is deadly to humans and only pandas and lemurs (spelling) can eat it raw. It must be boiled for a period of time for human consumption.

Re: Simple cooking methods flush arsenic out of rice (2015)

#28

Post by DanBC » Sun, Apr 21, 2019, 9:56 PM UTC

philliphaydon wrote: post #25

Rice contains arsenic??? I just found out a few days ago my favourite vege, bamboo shoot, contains cyanide... and is sold pre boiled to remove it...

Yes, and they were all bought in UK shops or online from UK shops.

> Market rice was purchased from major UK retailers in the city of Belfast, or purchased online through UK retailers, i.e. all products tested were widely available to the UK populace. Of the 41 samples tested in this study 2 were generically labeled as being from the EU, 11 from Spain, 6 from Italy, 5 from Thailand, 5 from France, 2 from Egypt, 1 from Japan, 1 from Australia, 1 from Lebanon, 1 from Pakistan, 1 from Turkey and 5 from the USA; with 13 being unpolished (wholegrain) and the rest polished. Descriptions of samples are given in S1 Table.

Re: Simple cooking methods flush arsenic out of rice (2015)

#29

Post by DanBC » Sun, Apr 21, 2019, 10:01 PM UTC

DanBC wrote: post #8

deegles wrote: post #2

> “The team then cooked rice in an apparatus that continually condenses steam to produce a fresh supply of distilled hot water” What device is that?

---begin--- Cooking rice in where percolating cooking water is recycled through condensation Here all 41 samples of bought rice were cooked in a standard Soxhlet apparatus. Rice grain, fresh from the packet, was accurately weighed (2g) into a VWR Soxhlet thimble and was then placed into an 25cm long and 3.5cm diameter Quickfit Soxhlet which was attached to a 250ml receiving flask at one end and a dimpled Vigreux 25cm…

I guess I should have included the plos link. https://journals.plos.org/plosone/article?id=10.1371/journal...

I use ---begin---/---end--- because HN has sub-optimal quoting, and pasting from PDF is often terrible.

bleep bloop.

Re: Simple cooking methods flush arsenic out of rice (2015)

#30

Post by witten » Sun, Apr 21, 2019, 10:11 PM UTC

I wonder how the boiling method (https://www.saveur.com/perfect-brown-rice-recipe) fares in regards to arsenic, given that: 1. You can use a higher water-to-rice ratio than with traditional methods, and 2. The remaining cooking water is discarded at the end.