Three Men In Shed - Ep 1 - The Day We Made A Freeze Dryer and a Few Other Things
2015 ж. 27 Шіл.
200 408 Рет қаралды
In which we - make a freeze dryer, some medieval ink, go foraging and learn to do a wheelie....Join in with the fun experimenting with kits and materials available from our webshop at www.workingink.co.uk
Love it. I think a set of lapel mics would take your production quality to the next level!
good idea mate - i think we will try that
You all are GREAT!! Thank you for sharing!!
It may help to add a desicant to the cold trap. Takes up volume so less work to pull the vacuum. Provides surface area to condense on, and or absorbe moisture helping to sustain a vacuum. Im guessing these are possible: 1) Dry heat treated uncented cat liter 2) Dry heat treated crushed sheet rock 3) Dry heat treated calcium chloride 4) Dry heat treated silica gel, sodium silicate.
“Freeze dried” is hard to believe when there’s is strawberry juice on his fingers when he removes it from the glass. Back to the drawing board boys.🤣🤦♂️🤣
Very nice. I am doing this in almost same way for the past one year and also doing vacuum Packging can seaming. This cooker freezer and vacuum pump combination is a wonderful combination.
Rob been watching your channel since the kitchen days and I am more stoked about this new format. All of your experiments have been incredibly interesting and always prove how approachable and fun science and engineering are. Eagerly awaiting next episode.
anticipating the next episode. you fellows enrich my life thanks
Loved it!
How am I just now stumbling upon this! You guys are nuts! This is hilarious and useful 🤣
Good to see you having fun!
Geoff Hurst it's always fun in the lab mate lol
By judging the first episode "three men in shed" will turn out to be an amazing season, liked every bit of it. As well i now know how to do a wheelie. Great first episode
M_U_R_R_A_Y lol - glad you liked it mate
For freeze drying (actual sublimation) to occur the vacuum pressure needs to be below 6 mbar absolute. With it being well below 1 mbar in manufactured freeze dryers.
So 5pa would do the trick? I know nothing about this stuff but im trying to figure it out. If im correct, 5pa would be less than 1mbar? I know this is an old comment but I need to know! lol
too fun, Thanks Rob👍❤️
This was a lot of fun to watch - thanks lads.
Kendal Cole lol - cheers mate
Gentlemen. Sound quality, story board and post production, need to add those to list.
missed this one way back when i first found your channel or so. amusing!
Fun education, can't beat it 😊
cool troops lol - we try mate
great show , gave me a solution for my idea
Craig Basham brilliant - I am well pleased mate
excellent, interested to make one like this
You blokes are quite entertaining. Blimey!
lol - cheers mate
It was almost really good. It was entertaining and it gave me some ideas. The process you are using seems a tad flawed though. Perhaps try putting the pressure cooker in the freezer with the lid off, wait for the strawberry to freeze solid, put the lid on the pressure cooker, then turn on the vacuum pump, get it down to the right vacuum, and leave it for a few days and see what happens? I would be very curious to see the result.
Very informational and made me laugh a ton. Like an informational comedy variety hour. The scientific Laugh In so to speak, which is a show way before my time. Pro video editing too haha! Good times fellas, good times. :)
Diadon Acs cheers mate - sound needs doing something with lol
Awesome! But you were right, I was horrified by the file and the lathe ;) Love the avant-garde approach, more health to you mate.
aivkara lol - i did it just for you mate lol
Good job I thought you guys were great I'll sub.
he is using a Laboratory vacuum pump, and it will draw a real deep vacuum, unlike a refrigeration vacuum pump. sublimation is when something goes from one phase directly to another and it skips over one of the phases which it normally would go through, like a solid to gas, it didn't go liquid then to a gas! eutectic is something different, u need to learn what is! its the highest and lowest boiling points of liquid!
Fantastic! good job! i also buillt one, is very usefull tool. another interesting think you can do with freezer dryer is a thermic insulating organic sponge made with agar-agar! Agar-agar gelatin is biodegradable polysaccharide so i suggest adding silver nanoparticle for inhibit microbial degradation. ;) (y) I look forward to the next episode!
Dalil Giorgi that is anice one - cheers mate - I will give it a try
You are so cool RMS!
+Michelle Franklin lol - so are you!!
Could you please clarify how to use the freeze dryer? It looks like the food chamber is outside it at just over room temp on the hot plate. Is that correct? I actually want to make my own freeze dryer because I don't like the harvest right model due to it's having to be defrosted so frequently. Also I want to do good size batches back to back. I already have the freezer and a water collection chamber. I'm planning on using an air tight box with shelf supports for the food chamber. (Think commercial bakers rack with an air tight chamber.) I'll be building that out of wood with a sealed polycarbonate shell on the outside. I'll be using aluminum sheet pans for the food trays.
My god... all you need now is James May. Interesting idea though. :O)
lol
you guys aren't very good actors, but in a charming This Old House kind of way :)
Joseph Pryor we'll get there mate lol
I like this format. Looking forward to seeing how it develops!
Joseph Pryor cheers mate
Nice but that's not freeze drying as the product was not taken below it's eutectic in temperature hence you had chemical degradation as the water went from liquid to vapour instead of solid to vapour. What you have is a vacuum chamber dryer.
ok - fair enough
nope
If it wasn´t dry, what went wrong, it should have worked?
poor vacuum probably
Well how can it be fixed to work correctly?
I like the idea of a portmanteau show with loads of little ideas, hints, and builds all coming together. As always, I'm fascinated by Rob's chemistry bits and I think that part could be expanded by combining it more with the foraging section to show how chemical products (inks, paints, glues, perfumes, medicines, etc) used to be made in the past. I've got to agree with the comment below about getting a better solution for miking you all up and getting the sound right though, it really would make the whole thing much better. I've only got one small question to ask; apart from it being cool to do, why exactly did you want to build a freeze dryer in the first place?
David Worth that's a good idea mate - i like it and will use it if that's ok - we want one to freeze dry graphene foams and sponges
ashley, have you tried freeze drying your shrooms? if you have, is it essentially the same thing as using a dehydrator? watched this video last week but it just occurred to me today that this could be a viable method for long term storage..
Good god, what lake did you dredge that vacuum pump out of?
Saves on table space for drying GO?
what would happen if you freeze dried a graphene solution? It it held it's structure, might be a great conductor. Stick it in some DES with some aluminum foam, which you could make with your vacuum set up, and you might have some pretty decent results from your rechargeable aluminum air battery.
Oseois nice ideas mate - cheers
Very entertaining! Good idea to pack all those little titbits in-between the main show! Makes it far easier to actually keep the audiences' attention. The audio is a bit soft in areas (remote mics, maybe?) but this is certainly quite an improvement from the lecture hall format in earlier shows (not that I mind - I teach) :)
Mathew Titus sound does need work - but i am glad you liked it mate
Don't you put the pressure cooker in the freezer? And a small heat source under it.
Is gallic acid that you extracted from oak apples? Can you convert it to catechol? Catechol can be oxidized to o-quinone and used in your EESD.
v cool - cheers mate
I have to say I'm disappointed in the final product, and you need only do a photo or video search for "home freeze dried strawberry" to see that something is amiss in your setup. The extra bit about making ink was great, and the banter is somewhat entertaining, but the point of watching is really to see how to make a WORKING freeze drier setup. So when your project doesn't work out, either figure out and correct what's wrong or chose a title more fitting, like "The day we tried but FAILED at making a freeze dryer". CHEERS!
An apple seed does NOT make the apple tree from where it came. It literally makes 1/6 of that apple tree, which makes its apples suitable for alcoholic cider.
i am trying to make a lyophilizer (freeze dryer) as my college final year project, and i seriously need some guidance, tell me how can i contact to you,,please reply
so long and away from the point im here for , more important is its hard to understand what u all say cuz of poor sound quality , fluctuating volume , backgroung and ambient noise ,but after all its enjoyable as a vlog , i like the mood u live in lol
This method is way cheaper than spending $1700 USD in a freeze dryer. But JAYZUS that's an ugly strawberry
This lifehack with paper and nail was interresting :) but... do you really think that lyophilised food looks like your strawberry?
lol - no of course not - this was all done in fun mate
You probably know this, perhaps increase the surface area in the freezer/condenser, perhaps by removable metal plates. This would give the moister an increased chance to condense on one of the various surfaces. update, feb 2021, thanks for the piece on the oak apple , disease. I see some here in Pa, Usa about a year ago and managed to look it up what it was. Something about induced dna mutation by the fly may be involved.
trailkeeper cheers mate
lol you guys look like having more and more fun one day after the other :D but besides that vinyl hoses collapse on low presure right?
сталкер чворович they do mate - we used reinforced hoses
Robert Murray-Smith yeah i saw i was just asking i never succeded with my vacuum chamber lol
сталкер чворович bummer - it's all about the seals mate - steve did a very good job of them
a freeze dryer it's like a vacuum chamber within a cooler, dont heat it, the food must be already frozen when the vacuum begins and the temperature must be maintained below freezing point at all moment
cheers mate
Those wouldn't be granny smith apples. Granny smith apples are essentially apples that grew out of branches that were part of the original tree that produced the granny smith apple. In other words, they are grown from trees that were multiplied from cuttings.
ok - cheers
Really like the format and content but the audio is all over the board. Definately get some better mics!
nice haircut ;)
cheers
what is that intro music called? thanks
Three men in a shed....hilarious, educational, and random. The banter between you guys is great. I think this series should be a regular on this channel. hahhah Good stuff! I am glad you're experimenting with formats and having fun doing it.
directeeccks it was a lot of fun to do mate
Sooooo, can I freeze dry the extra food in my garden?
robert lanham you can certainly give it a go mate
about freez dry. how about a jar with holes in it vaccume bag vacume cleaner and freezer? so much easyer P
sounds like a plan to me mate - do a video
i dont want to be a star ;) but thx i leave all the fame to u xD
aww mate - i was looking forward to a vid - lol
I like this video only thing I would work on is equalizing your audio, i had to adjust my volume often to either hear what what being said or to keep from having my ear drums blown out. :)
+Mark Fontana we'll fix that for next time mate - promise
Excellent!
+Mark Fontana Yep, just thinking this would be great if I could hear anything they were saying besides when they are speaking directly towards the camera Mic.
+pau even then it is spotty
+pau bish lol - we must try harder then
Clove oil :)
Mark Durbin hehe :)
Good content guys, really good stuff, but you need to invest in some audio equipment to put a mike on each of you and normalize the sound. In some scenes the speaker is barely intelligible due to background noise and the distance from the microphone, others had me scrambling for the volume control as they were far too loud.
+Stephen Bungay lol - cheers mate - it was a first effort though
And a very good one, love your philosophy re.:"investigative thinking". I've subscribed!
+Stephen Bungay i like the way you summed that up mate - i will have to use it lol
That was very interesting aswell as entertaining and fun good stuff ! some positive criticism, there were alot of ups and downs with the sounds hard to hear you guys sometimes, and echo in the room :).
+Thomas Syxe cheers mate - i know - but it was a first try and a go at setting a format for a show i would like to develop - kind of a pilot
It rocked! the viewscount just proves that :)
+Thomas Syxe cheers mate
Robert Murray-Smith great show still laughing
YOU STOLE OUR IDEA OF A NAME
I live an hour from Oregon feeze dry, (now it's called mountain house). they don't have a factory outlet! SUCKS....
Love it mate. You are crazy guys lol that s great. That s a mix of the monty python and mac gyver lol.....Ash my brother do better better wheelie lol
Mo Kha lol
Mo Kha hehe, my skills have laxed a bit in my old age!
Ashley Mills lol I know mate but please another vid like that. It s great
I thought freeze drying was done at freezing temperatures?
+mdimarco87 the freezing bit is - but the drying bit is sublimation
Thanks guys for sharing but terrible sound..
sorry for that mate - the sound does get better in later vids
Wonder if anyone has ever tried to freeze dry wood
Aren't you supposed to freeze it?
Blokes...check. In a shed...check. Flat caps.... ... ... Flat caps?
How does this have almost two hundred thousand views?
Kwan hem niet zien
who is Kwan?
Sound is a problem guys...
cheers mate
18:16 FAKE TAXI DRIVER in their parking lot!
It’s a Black Cab, what’s fake about it?
I'm really board and please try to make interesting and educational.
Sorry that's not a freeze dried
Slow dow n when you explaining
Thanks for that total waste of time
+john smythe my pleasure lol - i am sorry you didn't get anything out of it - but i suspect that is more to do with you than me - have a good one
Haha
what a waste of my, and your, time. stay focused on subject or leave it out.
or maybe just do it because it is a bit of fun
I found it all very helpful, the ink recipe is of use to me, and I happen to be a fan of rum.
lol - cheers mate