Search found 773 matches

by manu de hanoi
Fri Nov 27, 2020 7:54 am
Forum: Essential Oils
Topic: Vacuum distillation...experiment results and silly question.
Replies: 5
Views: 1067

Re: Vacuum distillation...experiment results and silly question.

what was the volume of water and weight of skins/lemongrass ?
by manu de hanoi
Fri Oct 04, 2019 8:34 am
Forum: Research and Theory
Topic: ideas for breaking down an azeotrope
Replies: 18
Views: 2471

Re: ideas for breaking down an azeotrope

pope wrote:
Fri Oct 04, 2019 8:27 am
This is a very old thread but my brain is all about this topic today - what is the point of going from 96% to 100%? Remove any trace impurities trapped in the water?
fuel ethanol is the point
by manu de hanoi
Mon Sep 02, 2019 7:42 pm
Forum: What Not To Use/Do
Topic: Chinese stainless steel needle valves
Replies: 9
Views: 2569

Re: Chinese stainless steel needle valves

so far I'm satisfied with my dirt cheap chinese needle valves :
https://item.taobao.com/item.htm?spm=a2 ... t=8#detail
by manu de hanoi
Sun Sep 01, 2019 3:45 am
Forum: The Construction Site
Topic: Cutting glass - Hardened, Pyrex, Quartz and plain old glass
Replies: 35
Views: 3002

Re: Cutting glass - Hardened, Pyrex, Quartz and plain old glass

As far as I know hardened glass = tempered glass, except for some speciality "gorilla" glass for mobile phone. so I'm surprised anyone could cut "hardened" glass without it shattering (I've had my share of explosions). Btw u can tell tempered glass by putting it in from of LCD sceen (emits polarized...
by manu de hanoi
Thu Aug 29, 2019 10:53 am
Forum: Column Builds
Topic: What is the most "hands-off" design?
Replies: 19
Views: 2315

Re: What is the most "hands-off" design?

continuous stills are the most hands off especially for larger runs Yep. Running grain in solids however still means that an operator needs to be on hand,,,,so that he'll know when to run away :lolno: Running grain in solids ? I dont understand. Anyways it's important that the wash be well filtered...
by manu de hanoi
Thu Aug 29, 2019 4:49 am
Forum: The Construction Site
Topic: my vacuum still build
Replies: 22
Views: 3198

Re: my vacuum still build

I have been working on a vacuum setup, Its like learning to distill all over again. Great power savings can be achieved as you need less heat to boil ethanol with minute power to obtain vacuum. Its a work in progress, i have a working model but needs more work. I will post pics and updates as i wor...
by manu de hanoi
Thu Aug 29, 2019 4:42 am
Forum: The Construction Site
Topic: Everlasting gaskets compress, then leak
Replies: 18
Views: 1622

Re: Everlasting gaskets compress, then leak

The gasket looks white like PTFE, if the gasket is indeed PTFE then you should change it for silicone gasket (PTFE isnt elastic, it "creeps" ->leaks)
by manu de hanoi
Thu Aug 29, 2019 4:36 am
Forum: Column Builds
Topic: What is the most "hands-off" design?
Replies: 19
Views: 2315

Re: What is the most "hands-off" design?

continuous stills are the most hands off especially for larger runs
by manu de hanoi
Thu Aug 29, 2019 4:32 am
Forum: Column Builds
Topic: Otis’ Vacuum Still Build
Replies: 35
Views: 3632

Re: Otis’ Vacuum Still Build

TL;DR
In vacuum it's very hard to get fractionation, you should remove the reflux condenser
by manu de hanoi
Mon Aug 19, 2019 10:33 pm
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 1931

Re: Food dehydrator (and vacuum distiller)

here's a deep dry run on beef for the jerky lovers:
by manu de hanoi
Wed Aug 14, 2019 8:00 pm
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 1931

Re: Food dehydrator (and vacuum distiller)

Very interesting. My two-cents suggestions for improving. The part of the tube outside of the microwave should be made of food-grade "anaconda" tubing, such as those produced in Germany by Anamet https://www.amazon.it/dp/B075GK4C1D/?coliid=I1V422FAH32VOJ&colid=XYLCG4GPAVKM&psc=1&ref_=lv_ov_lig_dp_i...
by manu de hanoi
Wed Aug 14, 2019 11:11 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 1931

Re: Food dehydrator (and vacuum distiller)

microwaves penetrate differently than the hot air It's not the penetration that I was referring to, it's the off gassing of the water. The areas of the item to be dehydrated that are in contact with another surface won't off gas as evenly as the areas in the open. I'm not knowledgeable on the off g...
by manu de hanoi
Wed Aug 14, 2019 10:20 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 1931

Re: Food dehydrator (and vacuum distiller)

If you build your vacuum container to accept standard dehydrator trays it probably would make it able to hold more product at one time and have a more consistently dry end product. What you have so far looks really good regardless. microwaves penetrate differently than the hot air from dehydrators,...
by manu de hanoi
Wed Aug 14, 2019 9:43 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 1931

Re: Food dehydrator (and vacuum distiller)

I had a rather vigorous Q&A on reddit, but I clarified a lot there (and upvote if you can):
https://www.reddit.com/r/Ultralight/com ... ated_food/
and there
https://www.reddit.com/r/preppers/comme ... ated_food/
by manu de hanoi
Wed Aug 14, 2019 5:49 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 1931

Re: Food dehydrator (and vacuum distiller)

I ask them to prove or disprove their point of view, or present a constructive alternative
This is a prototype, changes can be made, criticism will help me build a better product.
by manu de hanoi
Wed Aug 14, 2019 4:49 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 1931

Re: Food dehydrator (and vacuum distiller)

What are your thoughts on the taste of your products compared to traditional methods? I cant really compare the tastes as I've never tried myself traditional methods. Drying in the saturated vietnamese atmosphere is tricky or impossible in some seasons. A friend had success fridge drying raw meat, ...
by manu de hanoi
Wed Aug 14, 2019 3:52 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 1931

Food dehydrator (and vacuum distiller)

My latest invention, one year in the making, is finally ready to sell. It dries food at low temperature in any weather and in 3 hours or less. _S1kK1BQefg Comments are welcome (yes it can distill too) EDIT I had a rather vigorous Q&A on reddit, but I clarified a lot there (and upvote if you can): ht...
by manu de hanoi
Sat May 25, 2019 10:01 am
Forum: Craft Distillers
Topic: vacuum still for essential oil
Replies: 14
Views: 2089

Re: vacuum still for essential oil

Sunshineer wrote:What was your cost start to finish. And will you custom build one for me.
This one was sold 4000 USD + shipping (vacuum pump not included), the build took 2 months. All of the bigger stills I make are more or less customized.
by manu de hanoi
Wed May 15, 2019 10:22 am
Forum: Research and Theory
Topic: Double Column stills
Replies: 15
Views: 1911

Re: Double Column stills

Yes you are missing the fact that SPP works best in reflux stills made for Azeo type products , Vodka / Neutral type spirits. Plates are better for columns used to make flavoured brown spirits like Rum, Whisky and Brandy...............Two very different stills made for very different jobs. No, beca...
by manu de hanoi
Mon Feb 18, 2019 5:15 pm
Forum: Craft Distillers
Topic: vacuum still for essential oil
Replies: 14
Views: 2089

Re: vacuum still for essential oil

Thanks manu. That explains the multiple vacuum hose connects at different locations that I see on your smaller still. It’s hard to see all the plumbing on either of your rigs, simply because there is a lot going on there and only limited angles/pictures. A logical diagram would be wonderful to see,...
by manu de hanoi
Sun Feb 17, 2019 1:01 pm
Forum: Craft Distillers
Topic: vacuum still for essential oil
Replies: 14
Views: 2089

Re: vacuum still for essential oil

Hi manu. Do you simply run the still until the collection tank is full, then release vacuum to collect, or do you drain it part way through the run if/when it fills? the collection vessel is valved so that you can drain it part way and re vacuum it without having to re vacuum the whole still. If yo...
by manu de hanoi
Sun Feb 17, 2019 10:10 am
Forum: Craft Distillers
Topic: vacuum still for essential oil
Replies: 14
Views: 2089

Re: vacuum still for essential oil

Hi Manu,is the whole distiller in 3mm plate or just the boiler? Just the boiler I saw the movie, can you tell me more about how you handle the vacuum? I saw that the pump first acts up to the vacuum, then, after having activated the heater, when the first steam rises you restart the pump to recreat...
by manu de hanoi
Sun Feb 10, 2019 10:20 am
Forum: Craft Distillers
Topic: vacuum still for essential oil
Replies: 14
Views: 2089

Re: vacuum still for essential oil

Hi Manu, big and nice job! the application of vacuum to the process is the new big challenge, easier for essential oils, much more problematic for alchol. Please let me know more: how much vacuum? what kind of pump did you use for the big red one? The same for the prototype? A low vacuum, so. Do yo...
by manu de hanoi
Sat Feb 02, 2019 8:19 pm
Forum: Research and Theory
Topic: Continuous STRIPPING still... again
Replies: 17
Views: 1966

Re: Continuous STRIPPING still... again

Edit: Ah Manu said 50 liters so 5389 watts per gallon for that feed rate I didnt put numbers in this thread, u prolly meant to address "swedish pride". I forgot to mention that after pre heating the yeast dies and forms a nasty goo layer on the packing where it meets the rising vapour. So it's impo...
by manu de hanoi
Wed Jan 30, 2019 12:52 pm
Forum: Research and Theory
Topic: Double Column stills
Replies: 15
Views: 1911

Re: Double Column stills

Hi madshine, Originally the intent was to reduce the footprint required for a more typical divorced side column. In this case the top side of the kettle is nothing more than the base for column #2. Column #2 does not receive any vapor directly from the kettle. Vapor is fed over from column #1. At t...
by manu de hanoi
Mon Jan 28, 2019 1:38 pm
Forum: Research and Theory
Topic: Reactive Distilling Techniques
Replies: 9
Views: 1387

Re: Reactive Distilling Techniques

esters (heads) often having a lower boiling point than ethanol (heart), I would expect a slow refluxing on a long column to promote esterification because the esters move up the column as soon as they are formed (and so the equilibrium is moved in favor of esters )
by manu de hanoi
Sat Jan 19, 2019 8:35 am
Forum: Research and Theory
Topic: Continuous STRIPPING still... again
Replies: 17
Views: 1966

Re: Continuous STRIPPING still... again

spencer321 wrote:my dream of going "pro" might be q reality, like to build something with some scalability in mind.
the trouble in being a "pro" is more about sales, taxes, paperwork, inspections, fees than distilling.
by manu de hanoi
Sat Jan 19, 2019 8:32 am
Forum: Research and Theory
Topic: Continuous STRIPPING still... again
Replies: 17
Views: 1966

Re: Continuous STRIPPING still... again

@swedish , it's more energy efficient to have the mash go through the condenser first (<100C) then to the spent wash heat exchanger (100c)
by manu de hanoi
Tue Jul 31, 2018 8:41 pm
Forum: Craft Distillers
Topic: vacuum still for essential oil
Replies: 14
Views: 2089

Re: vacuum still for essential oil

Oldvine Zin wrote:Cool looking device, would love to see a little more how she works.

OVZ
it's more or less the same as this previous device:
http://www.artisan-distiller.net/phpBB3 ... f=1&t=8238" onclick="window.open(this.href);return false;" rel="nofollow
by manu de hanoi
Tue Jul 31, 2018 1:56 am
Forum: Craft Distillers
Topic: vacuum still for essential oil
Replies: 14
Views: 2089

vacuum still for essential oil

I wished to post this under essential oils but the size is above 30 gal. This is my latest build. The purpose of this one is to redistill essential oils and remove a fraction of it (rectification). The big reservoir hanging on the top left of the column (it should be straighter but I didnt tighten ...