Why this took almost two years

The mushrooms were the easy part.

Most probiotics die in a hot drink. Shroombiosis survives it two ways: the DE111® probiotic is a Bacillus subtilis spore, a form built to endure heat and stomach acid, and the BPL1® HT postbiotic is already heat-treated, so there is nothing left alive to kill. That pairing took almost two years.

Choosing seven mushrooms and dosing them honestly is mostly arithmetic and a willingness to pay for real extract. What took us close to two years was the biotics — because most of what gets sold as a probiotic inside a drink mix is decoration. It's on the label, it's in the marketing, and by the time it reaches your cup it isn't doing much.

The problem is simple once someone says it out loud. Most probiotic strains ship as live, vegetative bacteria. Live things die. They die in heat, they die slowly on a shelf, and plenty of them die in your stomach before they get anywhere useful. That's why so many probiotics tell you to refrigerate them, and why the careful ones print "potency at time of manufacture" — a number that was true at the factory, not the number in your mug.

So we picked two ingredients that don't fail that way. What I like is that they get there by opposite routes.

DE111® is a spore, and spores are built for exactly this

DE111® (Bacillus subtilis DE111) doesn't arrive as a fragile live cell. It arrives as a spore — the dormant, armoured form bacteria produce specifically to sit out conditions that would otherwise kill them. That's not a marketing angle, it's why Bacillus strains hold up through food processing and storage in a way Lactobacillus and Bifidobacterium generally don't.

ADM, who supply it, state that DE111® viability is maintained at temperatures up to 100 °C for up to five minutes. Their researchers have also published heat testing in real liquids — oat milk and dilute apple juice — at 45, 75 and 90 °C with no measured loss of viability. Let me be straight about the limits of that: it's the supplier's own data, and nobody has published a test in a brewed cup of coffee. What I can tell you is that the mechanism is the right one, and the temperatures that have been tested are hotter than the drink you're about to make.

Ours is dosed at 20 mg, which is 1 Billion CFU — the supplier's own recommended and most-studied amount. Not a sprinkle for the label's sake.

BPL1® HT solves it by already being finished

BPL1® HT (Bifidobacterium animalis subsp. lactis CECT 8145) goes the other way, and this is the part worth understanding — I described it imprecisely myself for a while.

The HT means heat-treated. The cells were deliberately inactivated at the factory, before the ingredient ever shipped. Which means there is nothing left in there for your coffee to kill. A live probiotic's entire label promise is a count of cells that can still reproduce; heat it and that count drops and the product quietly under-delivers against its own panel. A postbiotic has no viability to lose. It's inanimate on purpose and still functionally active — which is precisely how the ISAPP consensus defines the category.

It's also why our panel reads 10 Billion cells and not "CFU." A colony-forming unit is, by definition, something that can still form a colony. Printing CFU on a heat-treated postbiotic would be a category error. Small thing. Small things are the entire point here.

That's 100 mg, which is the amount used in the published human research on this strain. We're not going to walk you through what that research measured, because it was done on a single ingredient in a capsule and not on this formula — borrowing someone else's trial and implying it describes our drink is exactly the move we're trying to be the alternative to.

Why we bothered

Because we didn't want to sell words. Two years is a ridiculous amount of time to spend on two ingredients most people will never look up. But "contains probiotics" is a sentence, and a spore-form strain at its studied dose next to a postbiotic that can't be destroyed on the way in is a product. We wanted the second one — in something you'd actually drink every day, at the temperature you'd actually drink it.

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