Soap Nuts: Soap Nuts are not Nuts (by Any Definition) at All!

Soap nuts (the natural detergent that actually ishigh concentration of saponin. Hence, it is the
found growing on trees) are not "nuts" (in thismost prized and highest valued. The Florida
case you can take the term anyway you desire).soapberry for example is a soap nut, but it simply
They are actually a fruit most commonly referreddoesn't work as well because its saponin
to as a soapberry. Now, that had to sound reallyconcentration pales by comparison. Hence it is not
weird, huh? It's no wonder people are confused. Ithe same as others. So far, easy, right?
just referred to a detergent as a fruit, and aSecondly, the harvest and back to grapes: The
detergent growing on trees. Jugs and bottlesgrowers are very precise as to when they
certainly don't grow on trees. And also, I certainlyharvest. The grapes are checked daily. Only at
would not call wine a grape. Are you confused,their optimal point, depending on what the grower
yet? I would be. It is my hope that this articlewants, are they harvested. Even a day can make
clarifies a great deal about what soap nutsa difference. Given that this is November, it is the
actually are. As your understanding grows, suchperfect time of year to address this issue. To
seemingly stupid statements will actually begin tokeep focus I will refer strictly to mukorossi
make sense. I've dedicated nearly a yearharvests, albeit the fundamentals are the same
intensely studying soap nuts and their inherentfor all.
properties. From lab test to standing in front ofAt this time of year (October/November
the washing machine, countless hours have beenDecember) the soapberry is maturing on the
spent. As a large US importer and a producttrees. From area to area and affected by the
formulator, that's my job. I hope my work willyear's weather in the area, we will find soap nuts
save you precious time.at various stages in their development. We are
Again, soap nuts are a fruit. They produce adealing with both wild and plantation grown soap
substance that is a natural detergent (or soap). Itnuts. Last years harvest of soap nuts has
is called saponin. Sapo is actually Latin for soap.become dark and the shells have shrunk
There are numerous botanical sources for saponin.somewhat in size. Only if stored properly will they
What makes the soap nut so special is itsstill be dry (nut gummy or sticky). The new
extremely high concentration of saponin. It is theharvest is, of course, of highest demand and
saponin that is Mother Nature's own naturalvalue. However, in the rush to bring newly
surfactant that effectively acts in the exact sameharvested soap nuts to the market, many soap
way as a chemical detergent or soap.nuts are prematurely harvested. When
Important break: "What the heck is a surfactant?"prematurely harvested, soap nuts will be a bright
Excellent question! I'm so glad someonegold to yellow color, but also they will be typically
asked!sur-fac-tant n. A substance or agent, forsmall (often in the 2cm range as compared to a
example, a detergent or a drug, that reduces themature soapberry at 4cm or larger).
surface tension of liquids so that the liquid spreadsA mature soap nut will have reached its peak in
out, rather than collecting in the form of droplets.saponin content - the most important factor.
All detergents and soaps are essentiallyHence, not only are the prematurely harvested
surfactants. It is surfactants that allow for thesoap nuts wasteful in that another six to eight
break up of dirt, grime, oil, grease, etc. in water -weeks could produce a much more bountiful
and thus enables things to be washed andharvest. But also, they will not be of the quality of
become cleaned. It's really that simple. (There area fully mature soap nut. Given drying and shipping
some minor exceptions but this is the KEY thingtimes, look for the best quality newly harvested
to realize about how detergents and soaps work.)soap nuts to begin showing up in the US in late
It is just the fact that most surfactants - thatDecember, January and February. Properly stored
we know of - have come out of chemical labssoap nuts from last year's harvest will be the
rather than grown by Mother Nature. I assure youbetter choice. If the soap nuts are very dark,
they are not picking fruit at Procter and Gamble.gummy and sticky (as is often the case at this
At least not when making detergent. I bet this istime), they have not been stored properly. Hence,
beginning to make sense.look elsewhere for the best quality - regardless of
Somewhere throughout the ages people startedtime of year.
calling the dried soapberries "nuts". Why? BecauseThirdly, the results of inexperience: Most sellers of
they feel and look more like a nut than anythingsoap nuts know little more than the average user.
else. They are hard and dry (when they areSoap nuts are so new to the US and western
ready for use) and even a nut-like color. If youhemisphere in general, that many sellers are selling
picked one up off the ground, your first guessonly due to the fact that there is a market.
would be: "some kind of nut." So, there you go.Whenever there is a market, there will be sellers
The rest is history. When growing on the tree,(and, of course, buyers). It is a caveat emptor
soap nuts remind me most of a cherry given(buyer beware) scenario. The quality of product
their large seed size relative to its pulp and skin.the buyer receives is largely a function of the
As they are dried in the sun, they becomequestions the buyers ask. Therefore, ASK
wrinkled and then look reminiscent of a date or anQUESTIONS. Ask about the species, quality,
overgrown (big time) raisin - just drier and harder.condition, color and size. Don't get too hung up on
During their first couple months they will beage. The shelf life of soap nuts is very long if
yellowish to golden in color. As they age they willproperly stored and maintained. Again, ASK.
redden in color. As time continues, they will simplyRequest representative samples if making a large
darken and shrink a bit in size. If properly storedpurchase. Moisture build up, often due to
in a cool dry environment they can last for years.condensation, is probably the leading causes for
As with nearly all dried natural or organic fruits,inferior quality soap nuts to come on the market.
vegetables, etc., if they are not stored properlyBe wary if you think they have been being stored
and allowed to become moist they will blackenin a garage somewhere (a common scenario). If
and even grow molds. I would not recommendyou don't get good answers, look for another
them at that point. (So much for common sense.)seller. Be cautious of cheap prices without good,
Again, it is the soap nuts' remarkable ability tological reasons. Improperly stored soap nuts are
produce saponin (that natural soap) in high levelsgetting bad at this time. Sellers will "fire sale" them.
that makes them so incredibly special - the idealYou typically get what you pay for.
natural detergent, soap and cleaner. As aLastly, bottom of the barrel hunting: The two
consumer, you receive them as simply the driedmain varieties that are being sold in the US are
fruits with their seeds removed (usually).Sapindus Mukorossi and Sapindus Trifoliatus. Both
However, as an apple is not just an apple, or agrow in relatively close proximity, particularly in
grape is not just a grape, a soap nut is not just aIndia. The trifoliatus variety is smaller and less
soap nut. Do you think a vineyard cares abouteffective. They are not as highly valued. Mixing
the type and quality of the grapes they grow?the varieties is a very common practice among
You bet - big time. If all is not right, a year'sharvesters and exporters. Not even those that
harvest could become worthless. Now, the grapeare very familiar with soap nuts can immediately
is probably the most extreme example that I canidentify the difference. Important note: A large
think of to make my point. Such is the beauty ofamount of soap nuts are pre-packaged overseas
extremes - the fundamentals are made easy tofor retail in the US to save on labor costs. (This
understand. It's such fundamentals that we are"note" is worthy of its own article, so I will just
going to apply to soap nuts.drop it here.) Hence, not even most US and
Note: The purpose of this article is also to provideCanadian sellers can inspect them carefully.
some additional fundamentals about soap nutsNaturOli, is an exception since the final packaging
that may lead to even better personalin done in the US. Soap nuts shipped by NaturOli
experiences, and also to assist you in becoming ahave been hand inspected within only weeks of
more informed consumer or seller.sale.
Firstly, the type, variety and strain: As withSo, the bottom line: You need not be a
grapes, they run the gamut. A vineyard isconnoisseur (as a wine master) to find quality
extremely particular regarding the grapes theysoap nuts. The very simple, and even common
grow. Different grapes will produce differentsense, knowledge shared in this article should help
wines. With soap nuts, we don't need to go toyou to make much better decisions. Be you a
that extreme for one reason: There is no culinarynewbie or veteran to soap nuts, you want a good
aspect to deal with. The value of a soap nutexperience - and the most value for your money.
distills (pun intended) down to one thing - saponin.Reliable quality and saponin content will ultimately
100% pure saponin (other than the extractionlead to increased affordability. You will never again
process that can result in significantly differentneed to rewash a load, or use more soap nuts
results and qualities) has no variables. It is what itthan required. A little knowledge goes a long, long
is. It is the concentration of saponin that we mustway.
concern ourselves with. From species to species inUnderstanding that soap nuts are Mother Nature's
the Sapindus tree family that grows across thefruits - not lab produced products - is the most
globe, the soap nuts vary greatly. Without goingcritical aspect of being a good user and consumer
into the many, many varieties in detail (that'sof them. If you think of soap nuts as a fruit - be
another long article), the fact is that theit a grape, cherry, or appleĀ  - you are half way
mukorossi variety contains the most consistentlyhome.