Update: I have obtained very cool thing
Added 2024-07-26 20:32:56 +0000 UTCHowdy y'all!
I FORGOT TO WARN YOU ABOUT SOMETHING:
This topic can lead you down a YouTube rabbit hole that can lead to weird places (mainly prepper stuff). Unless you want to go there, you should probably ignore any recommendations it might throw at you based on the title.
so yeah, i bought a freeze dryer
https://www.youtube.com/watch?v=pyvVQZqSHfI
Comments
This will be so great for my backpacking trips! :D
Leif Dyrsten
2024-08-31 20:14:58 +0000 UTCIf you do a video on Peltier devices, it might also be fun to include Seebeck generators, which are basically Peltier devices in reverse (apply heat, generate electricity). There were some weird old Soviet radios that were kind of kerosene lamps and radios in one, using the heat from the lamp to power the radio. This was for far-flung corners of the USSR that didn't have electricity.
Circuitmike
2024-08-29 19:52:46 +0000 UTCSpeaking as someone with decades in the commercial water damage restoration industry: desiccant dehumidifiers are typically used for a couple of reasons: 1. Large areas of damage; as these units are more readily scalable to trailer-mounted sizes, they can be more easily used on massive water damage incidents. 2. Cold temperature operation; desiccant units operate well below the threshold where refrigerant and even low-grain refrigerant dehumidifiers can operate. Since a water damage incident can happen at any time, equipment that functions even in freezing conditions can be immensely helpful. (Although restoring heat to a building and using refrigerant dehumidifiers can be more helpful in the long term, water damage typically needs to be addressed immediately.) 3. Drying beyond the capabilities of a refrigerant unit; desiccant dehumidifiers can continue drying effectively even long after a refrigerant unit has long stopped being effective. Standard refrigerant dehumidifiers typically stop being useful once specific humidity gets to 55 grains of water per pound of air, low-grain refrigerant units can go further to around 25-35 grains of water per pound of air, a desiccant unit can continue to operate and pull moisture until the moisture is completely gone (with diminishing returns, obviously.) This allows a desiccant unit to dry harder to dry materials (materials such as natural hardwood, plaster, tile, etc.) more easily than a refrigerant dehumidifier. Despite these advantages, desiccant units are not a frequently used device due to a number of disadvantages: A. Massive electrical draw; a desiccant capable of 130 pints of water removal a day draws 24 amps (split across two circuits), while a low-grain refrigerant unit capable of 135 pints of water removal a day draws under 9 amps. Power availability can be a huge factor on a drying project. B. Over drying of materials; since a desiccant can, given enough time, dry materials to 0% moisture content, extra care needs to be given to monitoring materials in an area being dried this way. Too little moisture in a material and you've destroyed the material just as effectively as not drying it at all.
Sean Kennedy & Katharine Huseby
2024-08-09 15:54:24 +0000 UTCNot a great rhymer but definitely related, dehydrator.
Richard Glickman
2024-07-31 02:11:09 +0000 UTCThis audio is really weird in headphones — when recording your VO while behind the camera, please disable stereo audio, or mix to mono in post!
Tuesday M
2024-07-30 01:29:12 +0000 UTCJerky via the freeze dryer? Also, FYI, freeze dried cheese is awesome, but pricey.
Jerrad Pierce
2024-07-29 18:37:27 +0000 UTCMy parents bought a much cheaper model that has been in use for 5+ years now. My mom uses it often to freeze dry herbs, fruits, veggies, etc. from the garden because it's often too much ripening all at once for the two of them to eat before it goes bad. But they also use most of the dried stuff through the winter before next planting season. It's a bit gratuitous but they also have a decently sized supplementary solar array that powers lots of extra tools around the house like this.
ast_rsk
2024-07-29 06:42:07 +0000 UTCA Mallomar
Ryan Butler
2024-07-28 22:51:33 +0000 UTCYes - get a decent Peltier device and measure the temp on both sides over time along with the current draw and graph it?
Donald J Arndt
2024-07-28 15:35:58 +0000 UTCGiven recent content, you and Robert Dunn need to do a joint video again. Call it "Why Peltier coolers seem like a cool idea...but probably aren't"
Tnarg42
2024-07-28 04:18:26 +0000 UTCI was tempted by one of those 6 can "fridges" at Walmart the other day. I'm suddenly very glad I didn't get it!
Stumblr
2024-07-28 02:11:09 +0000 UTCI would probably watch at least some of the freeze dryer live stream.
Minecraftchest2
2024-07-27 22:32:08 +0000 UTCGet a dehydrater to round out the 3rd way.
alphawhiskey
2024-07-27 22:15:34 +0000 UTCI think the peltier dehumidifier could probably be included, but that you should tease a peltier video rather than talk about the "fridge" too. But, like, just trust your gut. You're the expert, here.
Kristian Høy Horsberg
2024-07-27 21:25:58 +0000 UTCMan I would love a freezedrier, or access to one at least. Always imagined that being able to freeze-dry tomatoes at the peak of flavor, and break them down into frozen 'powder' for cooking. I bet you'd get better/quicker freezing if you had all the trays and food chilled down to fridge temp at the least. Make a short, sweet Peltier video. Get it all out. Desicants: have you seen Tech Ingredients' Desicant AC video?
brokenearth
2024-07-27 20:33:16 +0000 UTCfreeze dryers seem pretty cool! curious to see just how good it does with the junk foods. I bet it's make good savory stuff like carrot, zucchini, or other produce in healthy snacks. I'd watch a live stream of it! I have a pelltier dehumidifier i use at home for after a shower in the bathroom, and when traveling to keep the closet area of my hotel rooms dryer when i place damp things in there. it does pull a bit of water out of the air, but i need to measure the humidity with/without it some time and see just how good/bad it is. I'm predicting I'll get similar results to yours. . we shall see
eaglebeagle
2024-07-27 18:45:18 +0000 UTCI just recently got one of those Peltier dehumidifiers to help take the edge off the humidity in my bedroom. It was a complete failure, running all night it pulled MAYBE an ounce of water out of a room with significant relative humidity. Useless, it went back to Amazon.
Walter
2024-07-27 17:38:26 +0000 UTCI am always delighted when you fail to keep it brief, 30+ minutes of Alec rambling is my favorite thing! A standalone video on peltier devices would be great and +1 for a freeze dryer livestream
Mars (glitchykitsch)
2024-07-27 16:51:21 +0000 UTCI once used a freeze-dryer in the lab at the university when I was doing my Master's, I guess it was probably for preparing fungal samples for storage. I wouldn't know why the hell to have one at home either... Peltier elements we use in laboratory devices where we need to control the temperature of a relatively small spot very accurately. But are indeed highly inefficient, and also have a limited life span: it happened a couple of times during development that the regulation parameters were wrong and the heating/cooling device got into terrible oscillation. When that happened over the weekend, on Monday you would find your temperature regulator dead: Peltier element needed to be replaced... Looking forward to some content about dehumidifiers, in summer here in Switzerland, it tends to be not extremely hot (though still too hot for me) but also very humid... Only reducing the humidity inside would probably already bring a lot more comfort, it might be easier than installing air conditioners, in spite of summers getting hotter, air conditioning is still not really a thing here at home.
MrHammond
2024-07-27 16:48:51 +0000 UTCI purchased one of the TED dehumidifiers about a year ago after a water leak on a car where i wanted a way to pull out some of the dampness. It didn't pull much out, but eventually it got relegated to the bathroom, where it has a noticeable increase in water level after a shower. I hope you have a comparison of the efficiency of all 3 designs!
Michael Taylor
2024-07-27 15:16:57 +0000 UTCWhat’s that chime sound at 27:07? Can I get it somewhere?
Kalan
2024-07-27 13:55:01 +0000 UTCPelltier devices: Spy satellite technology that never came down to earth. Do a separate video on them.
Mike Bird
2024-07-27 12:49:27 +0000 UTCHa, new toy! No need to make excuses, the video on this is going to be really interesting, as usual, and I'm looking forward to it. Have a lot of fun with it!
Johannes Franke
2024-07-27 11:50:13 +0000 UTCSo I have one of those cheap dehumidifiers because of a crazy edge-case we're in with our apartment right now which would take too long to explain in detail. Mine captures between 100 mL and 200 mL of water per day depending on how hot it is and measures 35 W of power usage, which yes, that's barely any water at all given that I've calculated the air in my bedroom has nearly a litre of water in it during our warmest Summer days so far, but again, crazy edge case where our air conditioning is not reaching my bedroom and where it's electrically impossible to add an air conditioner to my bedroom without tripping breakers, thus even that tiny little bit of dehumidification is better than nothing. We're taking our landlords to tribunal soon over the ridiculous situation they've put us in, though the backlog means it will be well into next year before our case is heard. :/
Kris Asick
2024-07-27 11:32:20 +0000 UTCLove to hear the little red fridge is still in use! I'm curious if freeze dried soy sauce would make a soy sauce powder...
Liliana
2024-07-27 10:51:47 +0000 UTCNeat! Seems lab equipment is a valid use case for them (there was another comment linking to a spectroradiometer). Thank you for the response!
Jan Busch
2024-07-27 09:01:43 +0000 UTCI bet you could make deep-fried pickles even crispier!
Anapan
2024-07-27 07:50:52 +0000 UTCSweet! I've wanted one of those for so long! Well, I also wanted the HDMI capable Paper tablet too, but the freeze-drier makes you so much more capable (and the tablet just makes game really hard). So stoked to see what you do with it!
Anapan
2024-07-27 07:48:17 +0000 UTCI was thinking blenders! would be interesting.
Minecraft Chest1
2024-07-27 05:34:53 +0000 UTCYou should do a collab with LTTLabs and use there environmental chamber to test dehumidifiers.
Minecraft Chest1
2024-07-27 05:31:46 +0000 UTCI know someone who keeps theirs in their laundry room.
Minecraft Chest1
2024-07-27 05:30:05 +0000 UTCOf course you did.
Minecraft Chest1
2024-07-27 04:57:10 +0000 UTCside note, its unbeatable for preserving herbs. dehydration kills the flavor, and if you can grow your own herbs, you save a LOT of money.
Uhm Mu
2024-07-27 04:51:24 +0000 UTCThats awesome! We have a freeze drier one size down from yours weve been using to preserve extra food from the garden for the last two years, which has been awesome. It definitely is not a logical purchase, canning/freezing can preserve food too, but we often have so much produce it makes sense to store it for extremely long term, and freeze drying is the way for that. We made some candy for a lark, since the stores sell it for an arm and a leg, but we dont eat candy much these days so that didnt last long.
Uhm Mu
2024-07-27 04:48:36 +0000 UTCI can't believe you didn't at least open that panel to read the specs on the thingy.
Amy Tobol
2024-07-27 04:05:05 +0000 UTCI used to work for a lab equipment company that use them. It was a machine that burned food products to measure the protein in it and the gases that came off from combustion were ran through a series of scrubbers and then a small metal chamber that was cooled by a Peltier in order to condense out moisture
Tony Drake
2024-07-27 04:03:21 +0000 UTCI'm still logging temperature and power but I have a somewhat bigger peltier minifridge with a thermostat, unlike the tiny ones, for medication storage where I'm actually targeting 19-20C, much warmer than normal refrigerator temperature, but cooler than just ambient summertime. It seems to be working great, very stable 19C +/- maybe a degree and about 7-8 watt average. But I wouldn't try to store food in it! One exception: Will keep your chocolate from getting melty and weird in summer!
Michaela Pereckas
2024-07-27 02:27:39 +0000 UTCRegarding the video options: I'd prefer separate videos. I've watched pretty well all your content, but I much prefer the <20 mins ones. Something about breaking the 30 minute mark triggers something in me to thinking I ought to be doing something more productive. But watching three 20 minutes videos in a row? No problem! Anyway, that's my vote; I have no idea how that stuff impacts your monetization.
Matt Deres
2024-07-27 02:04:08 +0000 UTCAs a biochemist, my laboratory lyophilization never involved quite so much hardware! (Just freeze stuff first, maybe in the -80°C freezer, and let the sublimation of the water keep it frozen under vacuum at room temp.) But I mostly do mass spectrometry now so to me that's a lil' baby vacuum pump!
Michaela Pereckas
2024-07-27 02:00:08 +0000 UTCI can't tell you how many times I've thought about buying one of these. My biggest problem is figuring out where to put it.
The 8-Bit Guy
2024-07-27 01:53:11 +0000 UTCYes, desiccant dehumidifiers are better than other dehumidifier types in cold, damp conditions. From memory they’re more effective than other types under about 10C (about 50F) if the humidity is over about 50%. Temperatures under 10C with humidity over 50% are fairly common in subtropical climates near lots of water, during winter, if they don’t get cold enough to snow / freeze over (since snow/ice takes a lot of the moisture out of the air). Eg, parts of the UK/Ireland, Aotearoa (New Zealand), and the southern parts of Australia, etc. But the relative effectiveness of desiccant humidifiers falls off pretty quickly in warmer temperatures. I suspect over about 15C (about 60F) it’d probably be very inefficient to use them. Ewen
Ewen McNeill
2024-07-27 01:11:33 +0000 UTCI've always wanted one and can't wait to see the results. So happy you are doing this.
Just LB
2024-07-27 01:03:55 +0000 UTCVery cool
Minilla
2024-07-27 00:03:18 +0000 UTC"Keep this thing pretty brief" > 34 minutes
SkaveRat
2024-07-26 23:48:12 +0000 UTCWow yeah YouTube now immediately believes that I am a prepper
Greg Bell
2024-07-26 23:43:10 +0000 UTCYes!! Freeze dried skittles are the best!
Jimmy Dorff
2024-07-26 23:21:07 +0000 UTCGreat. Now I want Twinkies.
Don Eitner
2024-07-26 23:04:41 +0000 UTCFreeze dried slices of cheesecake are really delicious.
Laurel Carty
2024-07-26 22:41:39 +0000 UTCAlso don’t forget the third (and probably most practical) rabbit hole: human spaceflight. Mmmm… freeze-dried ice cream!
Elsie Hupp
2024-07-26 22:25:49 +0000 UTCI think we can all agree that the most important thing we can learn from preppers is that you should have offline copies of all your favorite media so that at least you have, idk, Super Mario or the Twilight novels to help you survive the irretrievable collapse of society. Can you imagine how much freeze-dried food you’d have to barter for a SNES cartridge?!?
Elsie Hupp
2024-07-26 22:23:41 +0000 UTCHey you finally got a vacuum chamber (technically)!
PerfectlyAdequate
2024-07-26 22:12:54 +0000 UTCA fun Peltier device you might find useful would be a small actively cooled spectroradiometer: https://www.oceanoptics.com/
Nick Gully
2024-07-26 21:51:38 +0000 UTCI think "utilitarian" was the word you wanted to describe Sublimey's boxy beige gestalt.
Kaitie Mabey
2024-07-26 21:42:08 +0000 UTCFreeze drying can lead you down two rabbit holes: backpacking and doomsday prepping There's hope. I prefer the backpacking side 1000%
simolator
2024-07-26 21:37:22 +0000 UTCThat ain’t no Ronco product. I’d imagine it’s only consuming power in bursts since once the vacuum sets it likely remains without much more suckage.
Rick LaBanca
2024-07-26 21:35:57 +0000 UTCI want some freeze-dried water.
Nick Gully
2024-07-26 21:31:02 +0000 UTCSeparate video would be better.
Big Car
2024-07-26 21:27:04 +0000 UTCI'd be interested in a dedicated Peltier video. Maybe they have an actual use in some neat (niche?) product or something? Re: freeze drying ideas, does it have to be food related items only? If so, maybe you can make powdered milk with it? If other stuff is also okay, I'd like to see what happens to kid's modeling clay (like Play-Doh) :)
Jan Busch
2024-07-26 21:21:02 +0000 UTCHe's got the dry look today
Jeff Groves
2024-07-26 21:17:22 +0000 UTCFreeze dryer… Air fryer… Hair dryer? Just don't get one of those things from that Dyson feller. We in the UK have things to say about him. *cough*brexit*cough*singapore*cough*
Tom Gidden
2024-07-26 21:15:43 +0000 UTCHey I think for the peltier cooler “fridge” you could maybe make a “No Effort November, but in July/August” quick video. Those things are pretty prolific.
Sean Hearrell
2024-07-26 21:06:58 +0000 UTCWell you bought two: A huge freezer and a tiny fridge
Jonathan
2024-07-26 20:59:03 +0000 UTCDon't turn it on! Take it apahhhhhrt!!! :D
Jason Wellband
2024-07-26 20:53:45 +0000 UTCthat ain't happening this time
Technology Connections
2024-07-26 20:48:01 +0000 UTCThrough the magic of buying 2 of them…
Kenneth Garrett
2024-07-26 20:45:23 +0000 UTCHappy to be here! Put some skittles in there!!
Matt Govero
2024-07-26 20:37:35 +0000 UTC
