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Re:Ask HN: What are the things that you have automated in yo... by DoubleGlazing on Sunday June 24, 2018 @06:59PM (#17388821)
I have semi-automated cooking for the week ahead.

We recently started cooking meals for the week ahead on Sundays and then freezing them. The aim was to give us more time with the kids and to cut down on housework.

To save time on the Sunday cooking session I have cobbled together a very clunky, and I mean VERY clunky semi-automated cooking system. It comprises a Raspberry PI which controls a couple of WiFi mains switches attached to the induction hob and the slow cooker. A wooden spoon attached to a 360 degree servo motor hangs above the pot on the hob and can be activated by the Pi for stirring. Initially I tried to use one of those cheap three-legged novelty vibrating pot stirrers, but that didn't work out. Thermocouples feed back to the Pi to help control cooking.

The whole thing is controlled by a messy Python script and 'recipes' are JSON based text files. They just define how long each device should stay on, a max temp to turn them off and how often they should be stirred. I get an email when cooking is done.

I plan to add some functionality over the summer to tip in ingredients as needed. The biggest issue is that it doesn't handle chunky food, it works for soups, chili sauce, pasta sauce etc. I'd love to figure out a way to fry and separate mince as you would with a spatula..

Re:Ask HN: What are the things that you have automated in yo... by elvisds on Sunday June 24, 2018 @10:35PM (#17389568)
A friend is getting such a system to production for Indian recipes with Mechnical Chef [1] The demo looks incredibly cool [2]

[1] http://www.mechanicalchef.com/

[2] https://www.youtube.com/watch?v=lBB0ZaN1paE

Re:Ask HN: What are the things that you have automated in yo... by DoubleGlazing on Monday June 25, 2018 @03:59AM (#17390682)
That's impressive, really impressive.

My system looks like it was put together by a drunk person. That is somewhat true.

Re:Ask HN: What are the things that you have automated in yo... by golergka on Monday June 25, 2018 @07:03AM (#17391380)
> My system looks like it was put together by a drunk person. That is somewhat true.

This made want to see it even more.

Re:Ask HN: What are the things that you have automated in yo... by coreypreston on Friday June 29, 2018 @10:25AM (#17424691)
That's how you know its built with quabity!
Re:Ask HN: What are the things that you have automated in yo... by vijucat on Monday June 25, 2018 @11:59AM (#17393407)
A bit off-topic: Not only is this incredibly impressive, it's a great white noise video, IMHO. Can listen to the robot cook do it's thing for a loong time. The Capsicum Sabzi video has a good amount of unintended ASMR, too:

https://www.youtube.com/watch?v=Z0kf17jxeSY

Re:Ask HN: What are the things that you have automated in yo... by aws_ls on Monday June 25, 2018 @02:06AM (#17390209)
Your friend is a genius! Any idea, how much is it going to cost? And will they plan to sell it in India?
Re:Ask HN: What are the things that you have automated in yo... by navinsylvester on Monday June 25, 2018 @10:02AM (#17392475)
It costs around 25k INR which would be around 370 dollars. Here is the source - https://www.thebetterindia.com/147371/bengaluru-mechanical-c....
Re:Ask HN: What are the things that you have automated in yo... by easytiger on Monday June 25, 2018 @03:32AM (#17390578)
Whilst an impressively ambitious amateur electronics project, this is clearly not productisable and won't work for a whole ton of reasons. A reduced scope project or device however might be.
Re:Ask HN: What are the things that you have automated in yo... by mosselman on Monday June 25, 2018 @03:27AM (#17390553)
Building a clunky device that imitates human actions is hardly 'genius'. Resourceful maybe. An electrical coffee grinder isn't a normal coffee grinder with some rotating lever attached to it. An electrical coffee grinder has small motors attached to the grinder mechanism in order to make it move. This contraption is fun to build I am sure, but not 'genius'.

Much closer to genius is the thermomix: https://thermomix.com/

Re:Ask HN: What are the things that you have automated in yo... by exodust on Monday June 25, 2018 @05:54AM (#17391112)
Here in Australia, Thermomix was recently ordered to pay $4.6 million in penalties for knowingly keeping safety issues relating to one of their appliances secret.

A malfunctioning lid caused hot liquid to escape from the bowl, giving several consumers severe burns. The Court found that Thermomix knew of this risk but still continued to promote and supply the faulty product.

Beware of genius inventions, you may get burned.

Re:Ask HN: What are the things that you have automated in yo... by RankingMember on Monday June 25, 2018 @09:51AM (#17392389)
Re:Ask HN: What are the things that you have automated in yo... by fipple on Monday June 25, 2018 @04:11AM (#17390742)
I've been served Thermomix food and it was extremely unimpressive. I don't know how easy it was to make though, since I didn't participate in the cooking. I can just say that if it's any harder than microwaving it's probably not worth it.
Re:Ask HN: What are the things that you have automated in yo... by vr46 on Monday June 25, 2018 @09:04AM (#17392059)
Our Thermomix is in use everyday, and we love it, but it's not a device for the clueless or careless. Thermomix food is like any other food, the quality is entirely down to the recipe and person cooking it.
Re:Ask HN: What are the things that you have automated in yo... by scarejunba on Monday June 25, 2018 @12:38AM (#17389920)
I'm not able to seek on the video he has embedded (using Chrome on Android here). I'd probably have looked for more than 10 s if I could have.
Re:Ask HN: What are the things that you have automated in yo... by a_rahmanshah on Monday June 25, 2018 @01:44AM (#17390127)
Re:Ask HN: What are the things that you have automated in yo... by scarejunba on Monday June 25, 2018 @03:16AM (#17390503)
Thank you.
Re:Ask HN: What are the things that you have automated in yo... by err4nt on Monday June 25, 2018 @02:25PM (#17394504)
I have a lot of questions about how it might work, but above all else I'm absolutely in awe of what MechanicalChef can already do! Truly amazing automation, and I can see how this could directly benefit…nearly everyone. I wish your friend success with this (and many delicious meals too)
Re:Ask HN: What are the things that you have automated in yo... by sushid on Sunday June 24, 2018 @07:17PM (#17388897)
That sounds amazingly complex and cool at the same time. Have you looked into sous vide machines or pressure cookers? Those two are the items I use the most to get precisely cooked meals done in batches.

I've found that a lot of meals done via the slow cooker tend to taste the same because of the consistently and the type of ingredients typically involved in them.

Re:Ask HN: What are the things that you have automated in yo... by ghaff on Sunday June 24, 2018 @09:27PM (#17389358)
The problem with slow cookers is that the chop a bunch of stuff up, toss them in the slow cooker, and turn it on approach doesn't work all that well. You generally want to brown things etc.--and then you're not gaining that much. But, then, I'm mostly not a huge fan of stews in general.
Re:Ask HN: What are the things that you have automated in yo... by noxToken on Monday June 25, 2018 @08:58AM (#17392022)
I think there are three problems with most slow cooker recipes.

1.) My hi/low setting probably doesn't match your hi/low setting. From the get go, we're cooking the same meal at two different temperatures.

2.) A lot of recipes seem to call for low setting for 8 hours. This works well for a lot of people with a standard American work day, since a stew/soup will stay above safe warming temperature in a nearly sealed pot. However, the cook times are too long. Thawed chicken for 8 hours on low almost never turns out with the right texture. In this case, it's convenience > taste.

3.) The flavor is cooked out of the ingredients, and/or there isn't enough seasoning or too many ingredients. When you get the seasoning right, too long of a cook time can dull the flavor. When there isn't enough seasoning, then your meal is bland from the start. When there are too many herbs and spices, you get a mish-mash of flavors that are all competing for attention. There was an article on here a long while ago that categorized foods into low and high amplitude flavors. Something sharply distinctive was high amplitude (think nacho cheese Doritos), while a low amplitude food had weak, hard to discern flavors (plain grits). Too many different ingredients can lead to low amplitude foods, and when I see an ingredient list with 15 different herbs and spices, I almost always steer clear.

Re:Ask HN: What are the things that you have automated in yo... by ghaff on Monday June 25, 2018 @09:06AM (#17392072)
Rozanne Gold made something of a career out of cookbooks using short, simple ingredient lists and mostly easy prep. I don't care as much any longer as I mostly work from home, but my work night preference--as opposed to slow cookers--has always tended toward the fast, easy saute. Especially with so many pre-prepped vegetables etc. in the grocery store these days, it seems like the best option for my tastes.
Re:Ask HN: What are the things that you have automated in yo... by noxToken on Monday June 25, 2018 @03:43PM (#17395194)
I'm a huge fan of simple meals that don't involve a crock pot. There are so many variations on stir fry, that you can eat a distinctly different tasting meal every day of the week. You can even combine the two to help with meal prepping.

Brown a flank steak in a pan. We're not sealing in juices - we're making a crust. Throw it in the slow cooker for a few hours. Check to make sure it's tender. Prep some veggies by cutting and portioning them in containers. Find a stew sauce that's simple. When you're ready to eat, saute your veggies in a little oil, and add a generous portion of sauce when your stir fry is near complete. Throw in the meat towards to end to heat. Serve over potatoes or rice or something simple.

Re:Ask HN: What are the things that you have automated in yo... by krrrh on Sunday June 24, 2018 @10:14PM (#17389498)
Not GP, but he was saying pressure cooker over slow cooker. I got an instant pot about 6 months ago and I probably use it as much as my stovetop now. Even if you're pressure cooking a stew (it makes Indian cooking actually achievable) you can brown the meat in the same pot.

While it does double as a slow cooker, I have never actually used that functionality.

Re:Ask HN: What are the things that you have automated in yo... by ska on Monday June 25, 2018 @11:00AM (#17392911)
Absolutely, pretty much anything I could think of doing in a slow cooker would be better off done in a pressure cooker, for about the same time investment from me.

Sous-vide much more specialized, but I find super useful not for saving time, per say, but being more flexible about it. It's great when you are doing other things at the same time as cooking dinner, i.e. - leave the steaks another 30 min while I do this chore? no problem....

Re:Ask HN: What are the things that you have automated in yo... by sjg007 on Monday June 25, 2018 @10:15AM (#17392570)
Or a crock pot.
Re:Ask HN: What are the things that you have automated in yo... by Operyl on Monday June 25, 2018 @10:21AM (#17392619)
Crock pots and slow cookers are essentially the same, as far as I know. The only difference I can remember is that one is a metal bowl, and the other is a ceramic bowl.
Re:Ask HN: What are the things that you have automated in yo... by jajern on Monday June 25, 2018 @10:57AM (#17392887)
I've always thought Crock Pot was a brand. It's the Kleenex of slow cookers. I call my slow cooker a crock pot even though it's made by some Target brand.
Re:Ask HN: What are the things that you have automated in yo... by Operyl on Monday June 25, 2018 @10:59AM (#17392904)
Yep. They’re effectively the same in the end.
Re:Ask HN: What are the things that you have automated in yo... by hangonhn on Monday June 25, 2018 @03:26AM (#17390544)
Your tone sounds mildly apologetic but what you've cooked up (pun intended) is overflowing with pure hacker audacity and just mad nerdiness. You are a hero!
Re:Ask HN: What are the things that you have automated in yo... by _emacsomancer_ on Sunday June 24, 2018 @11:12PM (#17389675)
You don't have this pushed to a repo somewhere, do you? It would be great to be able to see how you do some of this.
Re:Ask HN: What are the things that you have automated in yo... by hx2a on Monday June 25, 2018 @12:56AM (#17389986)
I'd really like to see a YouTube demonstration & explanation. Seriously, if you can make a Raspberry Pi and Python code cook for you, you will be my hero.
Re:Ask HN: What are the things that you have automated in yo... by klekih on Monday June 25, 2018 @02:05AM (#17390208)
And how much time did you spend automating those things? Is it worth? i.e Is the time spent on cooking minus time spent on automating a positive number?
Re:Ask HN: What are the things that you have automated in yo... by slg on Monday June 25, 2018 @02:25AM (#17390298)
Your comment reminds me of my favorite Douglas Adams quote:

"I am rarely happier than when spending an entire day programming my computer to perform automatically a task that would otherwise take me a good ten seconds to do by hand."

Sometimes it simply isn't about net time saved.

Re:Ask HN: What are the things that you have automated in yo... by cstrat on Monday June 25, 2018 @02:34AM (#17390344)
oh man that is hilarious. I am so on that wavelength :)
Re:Ask HN: What are the things that you have automated in yo... by copperx on Monday June 25, 2018 @06:14PM (#17396291)
Don't read his blog though, or you'll be tremendously disappointed.
Re:Ask HN: What are the things that you have automated in yo... by neilsimp1 on Tuesday June 26, 2018 @10:38AM (#17400896)
Are you confusing him with Scott Adams?
Re:Ask HN: What are the things that you have automated in yo... by copperx on Tuesday June 26, 2018 @04:59PM (#17403942)
I did. Shame on me. I was just quickly skimming the comments.
Re:Ask HN: What are the things that you have automated in yo... by roryisok on Wednesday June 27, 2018 @02:29AM (#17406157)
You might still be disappointed at the lack of updates :*(
Re:Ask HN: What are the things that you have automated in yo... by DoubleGlazing on Monday June 25, 2018 @04:08AM (#17390727)
I spent the best of a weekend putting it together. I could have done it quicker, but my son was helping. It was his mainly his idea.

I don't really save much time. The real benefit is knowing that the food won't burn. Growing up my mother would make soups and stews, she'd leave them to simmer for 30 mins without checking. The food on the bottom of the pot would burn and make the whole thing taste nasty. I wanted to make a system that would prevent that, whereas my son just loves building robots and playing with motors.

It was as much a project for me and my son to mess around with as much as an actual kitchen time saver. But we have plans to develop it and just see where it goes.

Re:Ask HN: What are the things that you have automated in yo... by magduf on Monday June 25, 2018 @03:55PM (#17395295)
Sometimes it's not just the time saved over doing it by hand, which assumes that when you do it manually, you do it correctly. Automating things also removes potential for human error: when doing something by hand, you might screw up, which could cost you far more time (and materials). You should factor this into the "do I bother automating this?" decision.
Re:Ask HN: What are the things that you have automated in yo... by aws_ls on Monday June 25, 2018 @02:11AM (#17390235)
(Not OP) I think, it is worth a lot, just for the fact, that if you are the lazy partner/spouse in the house. Then you can make things easier for the one that does the bulk of the chores.
Re:Ask HN: What are the things that you have automated in yo... by andrewstuart2 on Monday June 25, 2018 @02:12AM (#17390245)
One of these activities builds upon highly valuable skills and, when done, leaves more time to build upon said skills (or do anything else). The other does not.
Re:Ask HN: What are the things that you have automated in yo... by narrator on Sunday June 24, 2018 @07:58PM (#17389018)
I did this with the healthiest packaged food I could get on Amazon (quest makes pretty good stuff) and doing subscribe and save to get a 15% discount + 5% cash back on the Amazon visa card. It comes every month and I just eat all that.
Re:Ask HN: What are the things that you have automated in yo... by xor1 on Sunday June 24, 2018 @08:26PM (#17389125)
Do you have any links to what you buy? I'd like to try some.
Re:Ask HN: What are the things that you have automated in yo... by wodenokoto on Sunday June 24, 2018 @07:20PM (#17388911)
Please do post pictures and videos. It sounds like a real life rube goldberg machine!
Re:Ask HN: What are the things that you have automated in yo... by King-Aaron on Sunday June 24, 2018 @10:35PM (#17389566)
> It sounds like a real life rube goldberg machine!

It has a very "Wallace and Gromit" sounding vibe to me!

Re:Ask HN: What are the things that you have automated in yo... by kbutler on Sunday June 24, 2018 @11:44PM (#17389760)
We're /inventing/, Grommie!
Re:Ask HN: What are the things that you have automated in yo... by rorykoehler on Monday June 25, 2018 @01:42AM (#17390123)
I just bought an electric slow cooker. I leave it on for 12-24 hours depending. Does the same job without the complexity.
Re:Ask HN: What are the things that you have automated in yo... by samatman on Sunday June 24, 2018 @07:29PM (#17388940)
I'd consider retrofitting a Kitchen-Aide or other stand mixer. The epicyclic rotation should give you pretty good dispersion.
Re:Ask HN: What are the things that you have automated in yo... by sAbakumoff on Monday June 25, 2018 @08:51AM (#17391977)
I'm just wondering, how do you spend this time you saved by using this terribly sounding device?
Re:Ask HN: What are the things that you have automated in yo... by speg on Monday June 25, 2018 @06:56AM (#17391354)
I want to try this when my wife goes back to work (Sunday meal prep, not the robots). Are you following any resources or just winging it? Ideally a single source that includes all the materials needed for the week and then recipes to make the dinners. Preferably with multiple weeks to rotate through.
Re:Ask HN: What are the things that you have automated in yo... by gricardo99 on Monday June 25, 2018 @07:38AM (#17391513)
please add some photos or video of your system in action. It sounds super cool. Especially the "very clunky" nature of it would inspire people to take on pretty daunting projects like this and get a "MVP" up and running. Just your description is inspiring. Thank you.
Re:Ask HN: What are the things that you have automated in yo... by joeyjojo on Monday June 25, 2018 @06:06AM (#17391153)
Any chance you could share your recipes?
Re:Ask HN: What are the things that you have automated in yo... by mosselman on Monday June 25, 2018 @03:23AM (#17390539)
You might find investing into a Thermomix a good idea:

https://thermomix.com/

Re:Ask HN: What are the things that you have automated in yo... by SmellyGeekBoy on Monday June 25, 2018 @08:46AM (#17391940)
I imagine the reason you're being downvoted is because you've posted this link multiple times without explaining your connection (if any) with this company. At the moment you look like a spammer.
Re:Ask HN: What are the things that you have automated in yo... by mosselman on Monday June 25, 2018 @09:03AM (#17392050)
Fair point. I dont have a connection. I just found it relevant in both branches of the discussion. In fact, I’d never buy one. But I would buy one before I started automating stirring food in pots.
Re:Ask HN: What are the things that you have automated in yo... by fredoliveira on Monday June 25, 2018 @08:52AM (#17391980)
Unrelated to GP, or to the company that makes those machines. But I do have one and it's pretty decent (but also loud on high speed settings). Saves us a bit of trouble here at home by automating some common things in cooking. Most of the time we use it for soups and batters.