How To Compensate for Dried Orange Peels Affecting Lye?

[PaintyLiz]

Hi All,

I looked through a lot of posts, didn't see this info, but maybe I just missed it. I'm still fairly new to soaping, so I guess I didn't think I needed to do any research, but when I did, I didn't find any answers anyway.

I make 0% SF 100% Coconut Oil dish bars & love them! I thought I'd add some old dried orange peels I had laying around, so ground them up & threw them in at trace.

I noticed the bars did not set up as quickly as usual. Huh .. now when I use them they are wonderfully creamy, but not sure they clean as well. Also, a white bloom formed on the ones I took out of the molds early. The ones I left in longer look fine.

I'm thinking it's that the citric acid in the orange peels affected the lye - but how would you know how much to offset the lye? I'm not finding any info. Also these peels had a lot of pith (white part) in them. That probably had an impact.

Anyway, wondering how to adjust this next time. Since it's 0% SF I don't want to end up with unsaponified lye, although it would probably clean dishes great LOL

Thanks for any help/suggestions! You all are great!

sorry, I didn't specify - the soap is just organic coconut oil & lye. No other ingredients. 0% Super Fat

 

[DeeAnna]

"...citric acid in the orange peels..."

It's the juice in the fruit that contains citric acid. Orange zest contains essential oil, but does not contain juice. The pith (white part of the peel) also does not contain juice.

Even if there were small bits of fruit sticking to the peelings, the amount of juice in these bits will be tiny. So if you use dried orange peel the way most soap makers do, the amount of citric acid supplied by the peelings is small to non-existent. Don't worry about that.

Best guess is your soap didn't get warm enough to go into gel. The most obvious issue caused by this is the sap will be softer.

Soap that doesn't get sufficiently warm is also slower to saponify. That means it is more likely to form soda ash (the white stuff you mention) as the soap is exposed to air.

At zero superfat, your soap may be slightly lye heavy even with the best of conditions. Don't fret about this as long as you're taking reasonable care to weigh your ingredients and make the soap properly. A slight amount of lye heaviness in properly made soap will dissipate as the soap cures.

As to why the soap appears to not clean as well, it's possible you're not as objective about your soap as you would like to be. You suspect the soap has been damaged by citric acid, so therefore the soap does not clean as well as you think it should. This is a common factor in human psychology called "observational bias." This bias happens to all of us, even the best of soap makers. But that's just a guess, not a fact -- I'd have to test your soap myself to have a better opinion.

More about using citric acid and citrus juices in soap making: https://classicbells.com/soap/citricAcid.asp

 

[PaintyLiz]

"...citric acid in the orange peels..."

It's the juice in the fruit that contains citric acid. Orange zest contains essential oil, but does not contain juice. The pith (white part of the peel) also does not contain juice.

Even if there were small bits of fruit sticking to the peelings, the amount of juice in these bits will be tiny. So if you use dried orange peel the way most soap makers do, the amount of citric acid supplied by the peelings is small to non-existent. Don't worry about that.

Best guess is your soap didn't get warm enough to go into gel. The most obvious issue caused by this is the sap will be softer.

Soap that doesn't get sufficiently warm is also slower to saponify. That means it is more likely to form soda ash (the white stuff you mention) as the soap is exposed to air.

At zero superfat, your soap may be slightly lye heavy even with the best of conditions. Don't fret about this as long as you're taking reasonable care to weigh your ingredients and make the soap properly. A slight amount of lye heaviness in properly made soap will dissipate as the soap cures.

As to why the soap appears to not clean as well, it's possible you're not as objective about your soap as you would like to be. You suspect the soap has been damaged by citric acid, so therefore the soap does not clean as well as you think it should. This is a common factor in human psychology called "observational bias." This bias happens to all of us, even the best of soap makers. But that's just a guess, not a fact -- I'd have to test your soap myself to have a better opinion.

More about using citric acid and citrus juices in soap making: https://classicbells.com/soap/citricAcid.asp

Thank you for your long reply

Don't know if you've ever made 100% coconut oil soap, but it sets up pretty much as soon as you pour it. Bars can be cut within a couple hours. This did not set up 'normal' hard until the next day, although I unmolded some after a couple hours to see what they looked like.

At this point, I don't know if it cleans as well, but the feel, creaminess & softness is definitely different. It's very very nice, maybe too nice for dish soap LOL

You have a different opinion on how much citric acid is in orange peels, and I guarantee you there was something in the peels that changed the lye reaction.

Citric Acid in Orange Peels​

Orange peels contain a significant amount of citric acid. Specifically:

• One medium orange typically contains 53% of its vitamin C content in the peel, which translates to a substantial amount of citric acid.

While the exact concentration of citric acid in orange peels is not explicitly stated, these findings suggest that orange peels are a rich source of citric acid, with a percentage likely in the range of 40-60% or higher.

If my soap cleans as well as it used to (it is totally awesome) then I'm going to keep putting orange peels in because it is really lovely now.

 

[DeeAnna]

Don't know if you've ever made 100% coconut oil soap, but it sets up pretty much as soon as you pour it. ...

Yes, I've made quite a few batches of 100% coconut oil soap. Yes, this type of soap usually does set up fast and get very hard soon after making. But that point is true is IF and ONLY if the soap gets warm enough to go into gel.

If the soap does NOT get hot enough to go into gel, coconut oil soap can end up just as soft and pasty in the mold as any other soap that doesn't go into gel. I've batches go both directions and know very well what I'm talking about.

I stand corrected about the citric acid in orange peel. Thanks for the information on that point.

 

[PaintyLiz]

Yes, I've made quite a few batches of 100% coconut oil soap. Yes, this type of soap usually does set up fast and get very hard soon after making. But that point is true is IF and ONLY if the soap gets warm enough to go into gel.

If the soap does NOT get hot enough to go into gel, coconut oil soap can end up just as soft and pasty in the mold as any other soap that doesn't go into gel. I've batches go both directions and know very well what I'm talking about.

I stand corrected about the citric acid in orange peel. Thanks for the information on that point.

Well, we'll just have to disagree, because my soap doesn't gel, I slice it just about as soon as I pour it. I do really like whatever happened with the addition of the orange peel - it really is soooo creamy

Oh & forgot to say thanks for the info on the lye dissipating, good to know

 

[PaintyLiz]

oh, one more thing that probably doesn't matter at all
I make shampoo bars that are 10% superfat & they are NOT at all creamy. Great lather, but not the 'creamy' feel of this soap. So I think something special happened, I don't think it's just that there is some reduction in the lye ... I wonder what it is. Maybe all that white pith

 

[Ephemerella]

I'm totally fascinated by this, @PaintyLiz would you mind sharing some details please? I'd like to give this a go!

Your orange peels, you peeled yourself, let dry, and then ground in a food chopper or coffee grinder? How much did you add?

I assume you like it for cleaning dishes, does it make your hands dry? Leave streaks? Leave soap scum? Is your water hard or soft?

Sorry for a thousand questions, and thank you for sharing this, I'm really intrigued!

 

[PaintyLiz]

I'm totally fascinated by this, @PaintyLiz would you mind sharing some details please? I'd like to give this a go!

Your orange peels, you peeled yourself, let dry, and then ground in a food chopper or coffee grinder? How much did you add?

I assume you like it for cleaning dishes, does it make your hands dry? Leave streaks? Leave soap scum? Is your water hard or soft?

Sorry for a thousand questions, and thank you for sharing this, I'm really intrigued!

I started making dish soap & shampoo because I have multiple horrid chemical allergies & most soaps (especially liquid) and lotions cause terrible rashes.

TBH I don't remember where I got the original recipe for the dish soap since every one I've seen since has multiple oils. This is just a very basic 100% coconut oil 0% SF. I get Organic Coconut Oil at Sam's Club for cheap. I added a little charcoal swirl to be fancy schmancy & poured it into molds. But you can just slice it up.

You can see the orange peel better on the back

The original recipe is THE BOMB for cleaning greasy burnt pans! It is the most awesome dish soap I've ever used! Just rub it over the dirty wet pan & use a plastic or metal scrubby & it cleans amazingly fast! I usually just rub it on a wet scrubby. It also make great laundry soap (add 5 oz soap, 3 cups each borax, washing soda & baking soda). I add some water in the washer first & put in about 1/3 cup for large toploader & let it dissolve a bit before I add the clothes.

Hands: I actually use it just for washing my hands many many times a day. They are not dry & no longer have rashes.

Dishes: It cleans dishes really well, but I have a dishwasher for most Does a fantastic job on pans, no streaks. Caveat - I do not know if the new 'orange' soap will behave the same way, I haven't had any dirty pans yet LOL Perhaps the orange oil will improve the cleaning (you can make good cleaner by putting orange peels in a jar of vinegar)

Water: possibly hard, but the soap foams like crazy. I also make 100% coconut oil shampoo bar with 10% SF which also foams like crazy (I think I will reduce SF next time after reading all about too much fat causing plumbing problems.) We live in a small travel trailer so my plumbing is very different from house plumbing.

Note about Citric Acid - apparently it can reduce soap scum - so hopefull orange peels will reduce soap scum - I plan to add them to my next batch of shampoo. Since theoretically they might be decreasing the lye activity, I really will have to remember to lower the SF

Peels: The orange peels were from oranges we ate & dried in a dehydrator. The ones I happened to use had very thick white pith. They were really hard & I ground them in a small bladed coffee/spice grinder. I don't remember how much I added, probably about 1/2 orange's worth. If I had realized it was going to have a chemical effect, I might have thought to measure it. Then again, maybe not LOL

For complarison, there is an 'original recipe' version. It's actually much smaller & I learned my lesson - bigger is much better. I end up with a bunch of soaps the size of a dice that I have to try to stick together.

Let me know how yours turns out & whether you like it as much as I do!

 

[PaintyLiz]

Okay cleaning results are in! The orange peel soap cleans fantastically. We had a pan with hard baked-on cheese - it cleaned it really well, left no greasy feel. That was what I was concerned about because it feels so creamy I thought it might have too much fat to clean without leaving streaks/grease

Here's a pic of the lovely creamy suds even while cleaning greasy cheese!