What are Soap Nuts?
Do you ever get excited to do laundry? Hmm. For some reason, I’m having trouble hearing your kazoos and drum rolls. Come on, people. It’s LAUNDRY! yeah!
Okay. I confess I have only been excited about laundry once – the day I didn’t have to go to a laundromat because we finally saved up to get our own washer. I really didn’t think I could get excited about dirty laundry ever again. Seriously – laundry? Yawn. Gag. Ehh. And now… well now I might pull out a few kazoos for all of us.
Hilde filled me in on the greatness that is soap nuts. Have you heard of them? They’re often mentioned in the comments here on Making This Home, especially when I start talking about eco-savvy cleaning tricks (like chemical-free dusting, cleaning with vinegar, and all-around eco-cleaning tips). I just didn’t know if I should take the plunge and try soapnuts. I mean – cleaning my clothes with a pile of nut shells? That really is nuts.
Or so I thought.
So here’s Hilde from right here in Germany, ready to give us the nitty gritty of all that is great about soap nuts because I imagine many of you are probably wondering about the little things as much as me. She’s been using them for the last ten years! So take it away, Hilde. Tell us what you know:

I am a housewife in my mid-fifties living in a village near Koblenz [in Germany] with my husband and sometimes one of my two grown-up sons. Since about twenty years, I have tried to live as eco-friendly as possible, which often means simply going back to the way we lived when I was a child (no car, cooking from scratch, having fewer clothes etc.).
Ten years ago, I started volunteering in a Fair Trade shop. Of course I had to be able to tell the customers about the things we sold, which was no problem with things like chocolate. But when we gor the soap nuts, my inner German housewife revolted. No way would I put some sticky brown lumps into my washing machine! But as I was the youngest of the volunteering ladies, I was chosen to try those lumps – and I never bought washing powder again.
Instead of a heavy container with a list of unpronounceable ingredients and some warning hints you get a drawstring bag made of unbleached cotton, containing three or four small cotton bags, a piece of paper and the soap nuts, or more accurately the empty shells. The piece of paper tells you what to do:
- put between 3 and 5 half shells in one of the small bags
- tie the bag tightly shut with the strings
- put it into your washing mashine and wash as usual.
- when the washing cycle is finished, take the nutshells out of the bag and put in in the compost
I have a front loader and usually chose the short cycle with 30 or 40°C (86 or 104°F), but I also have used the soap nuts at higher temperatures. The laundry was always clean, and very soft without using a fabric softener. If I have a load of whites only, I sometimes add a tablespoon of baking soda, but it isn´t really necessary. And since the laundry is without any fragrance, I sometimes add two drops of lavender oil directly on the bag for just the faintest hint of lavender.
And the costs? The price tag for my 1 kg bag says 12, 50 €. One nut weighs about 1 g, which gives you about 300 loads from one bag of soap nuts, or one load for 4-5€ cents. And when the nuts are all used up, you get a reusable cotton bag!

Like I said. Who knew laundry could be fun again? I’m pretty sure you can find soap nuts at health food and organic grocery stores if you want to give ‘em a try. Or have you tried them? Loved ‘em? Never heard of them? Either way – I’d love to know your thoughts because as Hilde and I discussed between emails, really – who knew laundry could get so interesting?
Thank you a million times, Hilde. And if you have any thoughts on laundry, now’s the time. Please dish the dirt. Air that dirty laundry. We’d love to hear.








March 2nd, 2010 at 2:57 pm
Thanks for sharing! I haven’t heard of soap nuts before, but will definitely check them out.
March 2nd, 2010 at 3:35 pm
There is an entry in Wikipedia about them, though I have never seen or used them. Where are your soap nuts grown?
They sound very good for front-loading washing machines, but I have a large top-loader, which holds 10kg of dry washing. I am guessing I would use quite a few more nuts in my washing!
Another thought: How good are soap nuts in “hard” water (for people using water from wells, not rainwater)?
March 2nd, 2010 at 4:56 pm
What is the theory behind soap nuts? I’m confused about how they work….
March 2nd, 2010 at 5:03 pm
I am equal parts fascinated and scared :)
Will have to find these somewhere in Portland. I do a lot of laundry!
March 2nd, 2010 at 5:46 pm
I have just started using soap nuts. I read about making a concentrate from the nuts. I put 8 nuts in a crock pot with 4 cups of water. I leave it on high for about 6-8 hours. Then I take the nuts out and use the liquid. (I keep the liquid in the fridge because it could rot after several days.) This works well of us because I use cold water most of the time, which might not allow the nut to soak well enough.
March 2nd, 2010 at 5:54 pm
Yes, but what is the “thing” that helps them clean laundry. Is there a soap product added to the bag of nuts? Please explain further. THANKS!
March 2nd, 2010 at 7:33 pm
I have been thinking about using soap nuts for a while, having read about them on a different blog. My hang up has been that I do my laundry in cold water and I heard that these have to be used in warm or hot. I rather enjoyed the dip in my electric bill when I switched to cold water washing and I prefer not to have to go back. Can these work with cold water?
March 2nd, 2010 at 10:48 pm
Yes these are amazing!! I use them to clean cloth diapers & the soapnuts get them sparkling white & smelling fresh!! I think if they can work on diaper they can get almost anything clean:)
March 2nd, 2010 at 11:56 pm
I’ve been using soapnuts for 4 or 5 years now, and I love them. I find they work as well as a non-bio on my laundry (DH and 3 children at primary school). I pretreat stains as usual and they work great for me.
Cameron- the soap nuts (as Hilde said, really the shells of the soap nut) contain saponin, so they are gently foaming. Enough to clean your clothes, but as you don’t remove them before the rinse cycle, not enough to leave a residue on laundry.
I actually reuse mine several times before composting them. I think they must cost be a couple of pence a wash. You can also blend them with water to make a liquid soap/cleaner, though I’ve never tried. There are lots of instructions online.
I knew DH would be sceptical about a detergent that didn’t come out of a packet, so I used them for a month without telling him, and he didn’t notice any difference with his laundry.
I was concerned about the air miles, as they come from the Indian subcontinent, but I figure who knows where the chemicals in the packet detergent have come from, then they’ve been shipped around before being mixed together and then packaged and transported to the supermarket- it can’t be much different in the end.
I get my soapnuts from a lady who has a Fair Trade stall at a local Farmers Market. I know from holidaying in the Black Forest that they are a lot cheaper in Germany for some reason (I’m in the UK). They were among my holiday souvenirs that year! Lots of people here buy them on German ebay.
I do find the string on the little cotton bag gets jammed after a few washes, so I use one of those bags that you put detergent tablets in now (a neighbour saved all her free ones).
I also tend to add washing soda and bicarbonate of soda to a white load.
Whew! Sorry, long post, but hope it’s useful!
March 2nd, 2010 at 11:58 pm
Okay, I’ve heard of them but haven’t tried them yet. They are on my “list of things to try” this year. Thanks for the tips…and I love the comments, too.
March 2nd, 2010 at 11:59 pm
Thanks for helping us out with everyone’s questions, Hazel.
How interesting that soap nuts are so much cheaper in Germany than the UK. I appreciate your tips and info… especially that your guy didn’t know the difference when you switched. Sneaky!
Katie
March 3rd, 2010 at 12:04 am
Chookie – I suspect you would add a salt/bicarbonate of soda/or something similar just like normal. Berlin has really REALLY hard water. This addition is a must with any cleaner in order to keep our machines functioning over the years. Hope that helps you out.
Katie
March 3rd, 2010 at 12:19 am
Since I am in Germany – it is a common thing, almost everybody eating BIO use those things, before 2-3 years you could buy this only in organic shops (on every corner here, but still) and now I was at Rewe, just a common grocery supermarket, and you can buy them there too.
Somebody asked about a hard water – well, in Germany we have very hard water and as Hilde writes it seems to work. I never tryed this way of washing, but some of my friends do. I like the fresh smell of the washing liquid…
Here you can buy nuts or powder made of them.
http://www.fair-natur.de/catalog/waschnuss-c-3.html
they sell 10 kg for 69,90 which makes 6,90 for kg. My friend clames 1 kg last her for months (she has a big familiy). Just yesterday i bought some Ariel, Persil and something for silk, something to bleach and paid everything around 20,00 €.
Even doctors recomand them if you have allergies.
And not every sorf of nuts are o.k. (be carefull if there is really very very chep offer) only those with high amount of saponin (the indian nuts for example)
http://www.billiger-waschen.de
March 3rd, 2010 at 12:30 am
I’m a new soap-nut convert. I use them to wash my baby’s clothes, blanket etc. Very economical and great for removing odor as well — truly amazing!!
March 3rd, 2010 at 3:36 am
I have a half-used bag of soap nuts in my laundry room. Not very pleased by the results on my clothes (compared to the olive oil soap powder I use)
But after reading the comments I have to rethink some issues:
-Maybe I should use something along to soften the water (very hard water here)? Like vinegar or baking soda?
-Maybe I should wash in higher temperatures?
-Maybe use more nut shells per load?
I’ll give it a few more times and we’ll see…
March 3rd, 2010 at 3:48 am
Aahh! I love soap nuts. I was excited to have stumbled on a description of your blog somewhere or another (oh the age of a.d.d.) and then got even more excited that the first post was about soap nuts, which I also use and tell everyone very excitedly about. Nice blog. Huzzah!
March 3rd, 2010 at 4:49 am
Will agree that the water in Germany is hard as nails. I once saw a display map of the country somewhere that showed which areas had harder water, and mine was actually in a lower range – HA! I always have to use a vinegar-soaked cloth to de-calc my faucets, hate it! So, if these things work in Germany, they should work on your well water!
March 3rd, 2010 at 6:27 am
I had no idea these even existed. How interesting!
March 3rd, 2010 at 9:51 am
How interesting to open your blog this noon and read about a very interesting subject. I never knew there was such a thing as “soap nuts”. I’m going to have to check this out today. We have a Nature Market just down the street from us…and this is going to be the first item I go and explore!
Thanks for always giving such an interesting blog!
March 3rd, 2010 at 10:56 am
Very interesting – I’m always checking our laundry aisle at the grocery for something natural and reasonably priced and tend to be disappointed. I think if I try them though I might have to not tell my husband about it for a little while like Hazel!
March 3rd, 2010 at 11:00 am
I used to make my own detergent until recently when I bought an energy efficient front loader. The instructions say to use “HE detergent” made especially for these types of machines. So I’ll have to find out more about soap nuts and this type of machine. Thanks.
March 4th, 2010 at 6:24 am
I make my own detergent and really find it works great. The recipe is very simple and it last a long time.
I got tired of dragging home large plastic bottles, even though we recycle. I have never heard of soap nuts.
We lived in Germany for a total of 3 years, so I really enjoy your site and hope that you have a chance to visit the Lake Constance area which is beautiful! Oh how I miss the laugen brezels! However, I do not miss the small laundry machine…:) Take Care.
March 5th, 2010 at 10:32 am
You may have touched off a mini-revolution in my city. I went to the Very Popular and Cutting Edge health food store and asked if they had soap nuts. They did not. And they were puzzled and curious. They said, “Wow – it sounds Cutting Edge.”
March 6th, 2010 at 10:08 pm
Fascinating! On a mission now to find some of these locally. I’ve seen references to them in the past but had no idea what they were or what they did until now. Thanks for some great tips!