What dual extraction actually means and why it is not on the Mello label
If you have compared mushroom coffees you have seen the phrase dual extracted. It sounds like a quality mark and sometimes it is. But it describes a process, not a result, and it is used loosely enough that it is worth knowing exactly what it means before it sways a purchase. This is the plain explanation, including why we do not print it on our own pouch.
Why mushrooms need extracting at all
Mushroom cell walls are made of chitin, the same material as insect shells. Humans cannot digest it. The compounds researchers are interested in, mostly beta glucans and triterpenes, sit inside or within those walls. Eating dried mushroom powder gets you very little of them. Extraction breaks the chitin so the compounds end up in a liquid, which is then dried back to a powder. That powder is what goes into a mushroom coffee.
Hot water extraction
Simmering mushrooms in water for hours pulls out the water soluble compounds, chiefly the beta glucans, which are the polysaccharides most of the research on mushrooms like Turkey Tail and Shiitake has studied. This is the traditional method behind every mushroom tea and decoction in East Asian practice. Most mushroom extracts on the market are hot water extracts, and for beta glucans it is the method that matters.
Alcohol extraction
Some compounds do not dissolve in water. Triterpenes, which give Reishi its bitterness and are the part of Reishi the laboratory research focuses on, and the hericenones in Lion's Mane, are alcohol soluble. Soaking the mushroom in ethanol pulls those out. On its own, an alcohol extract misses the beta glucans.
Dual extraction
Dual extraction does both, either in sequence on the same batch or in parallel and combined. The result contains both the water soluble and the alcohol soluble fractions. For a mushroom like Reishi, where both fractions are of interest, that is genuinely more complete. For a mushroom like Turkey Tail, where nearly all the interest is in the water fraction, the alcohol step adds little. So dual extracted is meaningful for some species and mostly decorative for others.
What the term does not tell you
Four things. It does not tell you the ratio, that is how many kilograms of mushroom went into one kilogram of extract; an 8 to 1 extract is not the same as a 2 to 1. It does not tell you whether the starting material was fruiting body or mycelium on grain, which our fruiting body article covers. It does not tell you the beta glucan percentage, which is the number a lab can actually measure. And it does not tell you how much extract is in your cup, because a blend can be dual extracted and still be a small share of the serve. A pouch that prints dual extracted and nothing else has told you about the process and nothing about the outcome.
Why Mello does not print it
We could put dual extracted on the label. We have chosen not to until we can pair it with the numbers that make it meaningful, an extraction ratio and a measured beta glucan figure from a batch test, and we are not yet in a position to publish those as fact. Our position is that a claim we cannot back with a document is not one we should make. So the pouch says what we know: six mushrooms, listed as one blend, in a coffee and a matcha at about 48mg of caffeine a serve, with no added sugar. When we have the test results we will publish them and say so.
How to read another brand's extraction claim
Ask three questions. Is there a ratio? Is there a beta glucan percentage, ideally from a third party test? Is the starting material named as fruiting body? If a brand answers all three, the dual extracted claim is worth something. If it answers none, it is a word on a bag. Being able to tell the difference is most of what you need to compare mushroom coffees sensibly, alongside the cost per cup.
Ratios, in plain numbers
An extraction ratio of 8 to 1 means eight kilograms of dried mushroom were reduced to one kilogram of extract. A higher ratio usually means a more concentrated powder, but not always a better one, because a very high ratio can mean the process stripped out fibre and left a powder that is mostly the compounds that survived the solvent, not a balanced extract. The number to pair it with is beta glucan percentage. An extract listed at 30% beta glucans from fruiting body at 8 to 1 is a specific, checkable thing. A powder described only as dual extracted is not. This is the standard we are working towards for our own label and the reason it is not there yet.
Why brands lean on the phrase
It sounds technical and it is easy to print. It also costs nothing to claim if no one asks for the certificate. That is not an accusation against any particular brand; it is a description of how a category with little regulation behaves. The fix is a customer who asks for the document, and a brand that either provides it or admits it does not have one yet.
The research angle
The human studies on these mushrooms mostly used specified extracts with known ratios and beta glucan content, which is why the extraction question matters: a food product using a different extract is not the same thing as the trial material, and we say so on our research pages. Research suggests the compounds are biologically active; what a given cup of coffee delivers is a separate question that only a batch test answers.
The caveat
Anyone with a mushroom allergy should avoid all mushroom extracts however they were made. Anyone with another food allergy should read the back of the pouch. Anyone pregnant, breastfeeding, on medication or managing a medical condition should check with a GP or pharmacist first. Both Mello blends are 30 serves, ship free Australia wide and carry a 30 day money back guarantee.