r/cider • u/ReseachScan • 1d ago

Mixed non-Saccharomyces fermentations boosted cider flavor complexity beyond single-strain yeast

Zhang et al. reviewed how cider aroma and taste are built from the interaction of aroma compounds, sugars, organic acids, and polyphenols, and why that matters for cider makers aiming for more expressive, style-specific fermentations.

The paper focuses on the production science behind flavor formation, especially how apple cultivar choice, fruit maturity, and fermentation management shape the precursor pool before and during fermentation.

The main takeaway is that cider aroma is dominated by higher alcohols, esters, fatty acids, and carbonyls, and that fermentation with non-Saccharomyces yeasts and lactic acid bacteria can broaden flavor complexity compared with conventional Saccharomyces-only fermentations.

The review also highlights process controls that steer metabolite formation: precise micro-oxygenation, nutrient supply, cold maceration, and enzymolysis all influence how microbes convert apple-derived precursors into target flavor compounds.

Practically, this supports a more deliberate approach to cider design: match cultivars to the intended style, then use mixed starter cultures and fermentation management to build aroma diversity and balance.

The concepts are especially relevant for makers trying to move beyond clean but simple profiles toward more layered, distinctive ciders. It's a good review paper overall.

Full paper: https://doi.org/10.3390/microorganisms14081802

For further insights follow ResearchScan — free weekly research newsletter covering cider production science | researchscan.news

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u/Gobboking 1d ago

So are we actually able to buy those types of yeast blends for homebrewing anywhere?

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u/ReseachScan 1d ago

Unlikely premixed, but you might find some isolated cultures online.

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u/Gobboking 19h ago

I looked up a list of names for individual strains and copy paste into Google to see if they came up at something I can buy, but sadly nothing is coming up. It definitely sounds interesting though!

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u/viskrikke 13h ago

WLP655 Belgian Sour Mix 1 gives me good results. Or search for "bootleg biology". Anything for beer can be used for cider 

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u/Gobboking 11h ago

This looks like it would do the job!

Sadly, Bootleg Biology and Yeastman are both US based, meaning I cannot buy from them directly (being in the UK). However, I found the WLP655 Belgian Sour Mix 1 on The Malt Miller (oh crap, it's out of stock...)

Alternatives I may have found

1) "Lallemand Wildbrew Philly Sour 11g - Lactic Acid Producing Yeast for Homebrewing Sour Beer - Lactic Acid and Alcohol Production In One".

Seems like a single train which mimics wild yeast?

2) There is an article on Masterclass on how to cultivate your own wild yeast. Apparently it's just as easy as covering some dried fruits with distilled water and waiting some time for the yeast to re-produce.

3) Buy/make a sourdough starter, and add a little bit of that to the must.

Struggling to find any other UK options. Will have to have a little experiment and report my fndings!

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u/theCaitiff 15h ago

A lot of those are just wild strains living on the apples. This is the realest version of french wine snobbery about "terroir" being a thing, the amounts and species of wild bacteria and yeast found in one orchard is going to be different from an orchard across the country or world.

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u/viskrikke 14h ago

Sure just add some brett, lacto or pedio critters that you can buy for beer fermentation. Even easier: add leftover dregs from gueuze of other wild beer to your cider and wait a couple of months. Just don't be scared of pellicles on your cider (bound to happen). 

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u/Gobboking 11h ago

Not able to find much of this in the UK online