finally, after all these years; deactivated charcoal!

Would have loved to have seen a comparison with “properly” activated charcoal.

"Injecting superheated steam into charcoal isn't easy - I've done it" - Cody 2021

You could say, the lemon juice deactivated the charcoal

Most people grinding charcoal : Mortal and pestle Cody : C I N D E R B L O C K

Glad to see that Cody is back in action and uploading regularly!

The bad science on KZfaq is a menace, well done for challenging it.

1:26 You know it's dangerous chemical, when Cody is wearing gloves.

Love how you had a call to action at the end and clearly made this partially out of concern for the effects of false information out there, great video :)

Activated charcoal should pull out between 80 and 90 mg/g... You're welcome.

3:17 This was not an accident. No. This was the behavioral consequence of Buddy missing. It's called compensation by induced artificial clumsiness normally attributed to one very missed feline. I feel for you Cody.

Something tells me that "household chemicals" in your household is somewhat different from the average hosehold ;)

You're part of Big Activated Charcoal aren't you? Always tryin' to squash the little guy! 😉

Uh oh guys cody's getting addicted to charcoal again... I thought Hes clean now! Ugh back to rehab.Please Cody get some help

You should have tested like store Bought activated charcoal so that we can see that differences from the home treated stuff and stuff made in a lab or factory.

Cody at the end: "I'm not angry, just disappointed"

"maybe you think i make a fast one..." literaly nobody thinks something like that. Cody is the best.

love ur rant! "test it, it's the least you can do" :D

11:20 I've never seen Cody get so passionate over safety before.

Hey Cody! If you are reading this, there were some things you did wrong in the video. I work with activated carbon (AC) on a daily basis and I think you were trying to chemically activate the charcoal. First of all, chemical activation needs heat, at least 600ºC. Second, you should impregnate the charcoal with the reagents and then dry the mix for about 24h. After this step you use heat, with an inert atmosphere to prevent burning. All that is left to do is wash the AC with water until the pH is neutral. Although the quantities of activating agent seemed right you can try to change amounts used to find the optimum. Hope this helps.

I'm shocked, the internet has false information.

Cody I don't know what's different but you're looking great, man! Cheers!

Since the loss of Grant, your channel is one of only a very few that I can rely on for good chemistry and science content. Keep at it and please don't ever stop. Much love and respect.

0:51 On account of his hair, Cody has officially turned into a mad scientist

the lemon juice did not cause the charcoal to fail. the charcoal just did its job by filtering the lemon juice. the charcoal was all used up by time you got to the iodine test.

I get a burst of happiness when you post

Would love to see the last experiment with the titration for an activated charcoal control to get an impression on what improvement to expect. Edit: just saw it in your other video. Activated is like ~45x more, so very significant difference. Very cool!

Certainly most of us can understand your frustration over these videos of simple ways to make things that are completely fabricated BS. Thank-you for trying to set the record straight with good science. Great to see you making videos regularly again.

dude it's fate that you make this video... i have been looking into making this just tonight haha. thank you

3:21 Ah yes, knocking chemical solutions over is a great thing to do when you've waited hours for it to soak.

Missed the uploads. Glad you have been uploading more content. I look forward to watching your videos with my middle son. Appreciate ya much! Please keep on keepin' on!

the reason why the lemon juice didn't work is because it contains citric oil so the charcoal absorbed it and won't let go of it. the charcoal became locked with the citric oil and would not allow any other liquid to be absorbed. citric oil is used in wood stains and wood cleaners and the oil is lock in it and creates a protection layer that help keep wood hydrated.

Ah yes, my favourite KZfaqr Cody Slab!

That clock looks like one of those old radium clocks

I love that the most exasperated thing I've ever heard Cody say it "Test it yourself! It's the least you can do!" Legend!

Cody, I’m a very very long time viewer of yours although I’ve gone through many KZfaq accounts. I started watching you quite some time before the mine series began even. I’m so glad to see you uploading again and hope all is well. I would love to see a vlog updating us on your happenings!

new mythbuster right here if only the million dollar companies would know how to activate charcoal, people doing tik tok videos are just way smarter than them ;)

You didn't show us how a gram of real activated charcoal would perform!

It feels like it’s been a couple of years since we’ve seen you doing experiments with such conviction. Glad to see you back. :)

Cody, you are looking good. So glad you are back, and looking happy and healthy. I’ve always had an interest in science, but your videos have really reignited my love of experimenting and learning. I am going to be teaching a small group of kids in a few weeks, and having them do some experiments. I hope I can have a similar effect on at least one of them as you have for me. Keep up the great work.

Thanks Cody, really appreciate your vids man. Been pretty depressed lately and binge watching your old vids has helped me get out of bed and try again. Thanks man.

Thanks Cody for bringing me a great video again. Have a great Day. I really miss your style of video from todays youtube

"So if you see a video like this, test it!" Here I go Nile Red, I knew you lied about that cyanide being poisonous!...

Thanks, was about to use the lemon juice 'recipe' to activate charcoal myself and make a filter for my laser cutter and 3d printers. Gladly saw this video and changed my mind 😊

Love the content! I do believe this experiment should’ve had 2 more controls. One control being untreated charcoal, and the other being purchased (known) activated charcoal

Tipping it over right when it's about to get good, that my kind of science. Haha why its funny when you it

11:00 this is the first time i've heard Cody irritated on cam.

The lil malfunction you had in this video made it like 1000x better. It was hilarious seeing you drop that container. Hahaha goes to show, even the _greatest_ *geniuses* can make mistakes

One day Cody is gonna make gold from lead. And Im here to watch it.

sees "actually making activated carbon" link: I see where this is going

@3.17... too funny, much clever. I replayed that way too many times.

Here's my recipe for activated charcoal: 1. Put some charcoal in a jar 2. Add equal parts lemon juice, soda water, and vodka until jar is full 3. Let sit for at LEAST 3 days 4. Turn jar upside down, while chanting by the light of a new moon 5. Dump all that out of the jar, and add activated charcoal Guaranteed activated charcoal.

Happy 2M!

Can you do a Lord Kelvins Generator with Mercury? Would love to see it!

Was expecting this to be you turning lemon juice and household cleaners into charcoal and kept waiting for the reveal. Thanks for showing how easy it can be to test it.

Not everyone seems to be willing to stand by their work. So many people on YT just post shit that is meant to get views, but don't realize the potential for harm they've caused. Thanks for being a good one.

thanks for saving my time, i was about to try to make "activated charcoal" at home

Wait, superheated steam isn't a household chemical?

Cody I’ve been regularly watching your videos since late 2015 and I gotta say keep it up and stay motivated. A lot of people are like me and like you and your content. (p.s I miss the explosive videos although I know KZfaq doesn’t like them one of the first videos I ever watched was you opening a lock with nitroglycerin and I thought it was the coolest thing ever.)

Thank you for makeing me understand which solution to use It helped a lot ❤

That clock is tripping me out

CODY IS SO CLOSE TO 2M SUBS🤩🥳🥳....LOOKING FORWARD FOR THE 2M SUBS CELEBRATION VIDEO

Looking good Cody. Surprised you managed not to curse when you spilt that water. Too wholesome.

Hey, I'm nobody, but your appeal to rational inquiry and verification really resonates with me. I deeply respect the callout, thank you so much for being vocal about misinformation!

10:26 moments like this make me comfortable in life because I know that even though people like Cody are incredibly intelligent, we are all human and sometimes even people like Cody say things like 'sawn'

"Test it! That's the least you could do!" I love this. I got in what to most seems like a very petty argument with a youtuber recently in a comment section because he was giving opinions on hunting arrows and their effectiveness, but his stance was in complete contradiction to what testing shows. The people who put the info out include a couple guys who have post graduate STEM degrees and spent their whole careers studying ballistics. The tests can be replicated with just a scale and a $100 chronograph, and I tested it out and got very similar results. It drove me nuts though because people take his advice and if they do they are going to go out and try to take the life of an animal with a much less effective setup, and even though he knows this and tests stuff out on his channel all the time, he does not seem to have any interest in taking an hour and testing it for himself. Call me what you like but I think if you are going to go kill an animal, you owe it to the animal to do everything you can to be an effective, efficient killer and minimize its suffering. To have hunting be such a big part of your life and refusing to take an hour to find out if your thoughts on arrows are off base blows my mind. When I thought my setup might not have been as effective as possible, it was my obssession to gather quantifiable data and correct that.

Great video and a good teaching lesson on kitchen chemistry. Using principles of chemistry, you can get good results using mason jars and sieves. One tip would be when you use the syringe, draw up 10 ml of liquid in the syringe and deliver 9 ml. This would avoid losing liquid at the end of the syringe travel. One more example of basic reality brought to the tubes by the mad wizard of Utah...

"I recorded that right?" You're a real youtuber now, always thinking about the content :D

Cody Slab , We need a chicken hole base update!

at least we've found a way to de-activate charcoal

Lookin great Cody! I'm glad to see you're back!

Apparently a heavy aquarium salt to hot water solution is what’s recommended for cleaning already active but full carbon. Maybe that could work on inactive

I like when he whispers "your fine" to the charcoal after he puts it back into the jar. Cody makes me feel not as weird or at least not alone in my weirdness 😊 Now when my family/friends say "your weird" my response is "I know isn't it great" . . . Thank you Cody

Hey you should Kalab with ghost town living!!!

Thank you for your time and effort’s to teach me that which I have wondered about. You saved me from making mistakes and your right we owe it to ourselves to do our own testing. Have a great day.

Dude I love your videos, please keep making them.

4:38 "hopefully we'll end up with just the charcoal" thats true for all the methods :P

Is there an already established electrolytic method for activating charcoal of a generally useful grain size? It seems like with the right setup, possibly using a carbon cathode and an anode made with charcoal grains conglomerated with an inert binder that can be easily dissolved out after electrolysis combined with the right electrolyte and voltage, it should be possible.

How did I know you were going to test this after you commented on Nate`s video on TikTok. Glad you are back!!

Your videos are fascinating. they are really fun to watch

Still waiting on that geology series you promised back when you were doing cody's mine

I like the intro with the charcoil , you should keep that one

Great video as always. Off to watch the bonus video.

Good experiment, in this case the acidic solution (lemon) may not have adsorbed onto the charcoal surface and hence lower removal efficiency. Also, charcoal is activated depending on what you need to remove. You may need another type of acid to provide the functional groups required for iodine adsorption.

you had drawn CODY SLAB - on a slab of concrete... who is going to clean that up?

OH YES, HERE WE GOOOO! cody videos are a treat in and of themselves - extra bonus points for charocal stuff! good to see you again cody! EDIT bummer.. it really would have been too good to be true :/ thanks for clearing things up!

Reflux for an hour with 10% nitric acid is a sure method. Mixtures of HNO3 and H3PO4 are sold as pipe descaler. The one I found at my local hardware store was 40% HNO3 and ~15-20% H3PO4.

3:17 The Control is OUTTA CONTROL

So dirty and unprofessional and yet still light years better than the other videos on the topic.

Just stopped to say, I enjoy watching Cody'sLab and even more when he seems at least enthusiastic, please never give up Cody, you made me want to learn science :) (chemistry? Wait, was it physics???? WHAT DOES CODY NOT DO!?!?!?!)

I have seen in most videos that heating is required to activate the carbon. Here we have seen the results where the samples are not heated, im not suprised that it failed to work, but its still interesting and calls for further investigation.

I love that you keep your fck ups in the videos, makes them feel more genuine. Just finished the vid, gotta say I appreciate your frustration with fake potentially dangerous videos and information on the internet. It is absolutely appalling what people will do for clicks.

Here before the 2M :)

I make what I call "activated charcoal" by reacting pure sugar with sulfuric acid. Have never tested it, but from the light and foamy texture of the end product, I suspect it performs much like the bought product. (After rinsing several times with distilled water).

Experience has taught me that coconut activated charcoal is the best at absorbing organic compounds, especially at eating odors. Coal activated, especially good at absorbing and even decomposing toxic chemicals after certain impregnations like ASZM TEDA. You could make some fascinating videos about this topic.

Glad to see you keeping well Cody. It looks like you've been enjoying making videos more and doing ones you actually want to do. keep doin what you're doing bud.

"Inject it with steam" So just shove it in a pressure cooker?

CODY CODY CODY!!! you're astonishing and I'm so freaking glad you're making videos again. THANK YOU THANK YOU THANK YOU!!!!!!!

2 MILLION SUBSCRIBERS CONGRATULATIONS CODYYYYYYYYY

Alcohol vinegar in a pressure cooker at low heat for a couple hours, should work well with your desired granule size. Ofc, rinse well in water and dry afterwards at 200 Celsius for ~25 mins.