Soybean extract is the fifth of nine ingredients on the Joe's Blend box, printed as 'Soybean seed extract (Glycine soja extract)'. It means the drink contains soy, which food labelling standards list among the foods known to cause hypersensitivity, or allergy.
Updated 29 September 2026. Checked against the printed box and Eurofins report AR-25-E9-005753-01.
Sources for this section: the printed Joe's Blend box, batches 140525JCA3 and 140525JCA7; Codex Alimentarius labelling standard CODEX STAN 1-1985, FAO and WHO.
In every 21 g sachetYes. Soybean seed extract is on the printed ingredient list, fifth of nine, and the allergen note on our facts page reads: contains soybean seed extract (soy). Soy is the only allergen that note names.
The Codex labelling standard lists 'peanuts, soybeans and products of these' among the foods and ingredients known to cause hypersensitivity, which must always be declared. If you avoid soy, Joe's Blend is not for you.
We checked all nine printed ingredients against that Codex list. Soybean seed extract is the only match: none of the other eight names a cereal containing gluten, crustacea, egg, fish, peanut, milk, a tree nut or sulphite.
Sources for this section: the printed Joe's Blend box, batches 140525JCA3 and 140525JCA7; Codex Alimentarius labelling standard CODEX STAN 1-1985, FAO and WHO.
The box names the plant as Glycine soja. In botany, Glycine soja is the wild soybean, the wild ancestor of the cultivated soybean, Glycine max. The label does not say whether the extract came from wild or cultivated soybeans, or what part of the seed it concentrates.
We have not seen the supplier's specification sheet, so this page does not guess at either.
Source for this section: Kofsky and colleagues, Frontiers in plant science, 2018, PMID 30038633.
The box prints no amount. Because labels list ingredients from heaviest to lightest, by the label's order a sachet holds less soybean extract than Arabica instant coffee, which is fourth, and more than each of L-carnitine, L-theanine, glutathione and the silicon dioxide added on its own. That is an inference from the order, not a measured amount.
The Eurofins analysis measured 1.02 g of protein in a whole 21 g sachet. It does not say which ingredients that protein comes from, so we do not attribute it to the soy.
Sources for this section: the printed Joe's Blend box, batches 140525JCA3 and 140525JCA7; Codex Alimentarius labelling standard CODEX STAN 1-1985, FAO and WHO; Eurofins nutrient report AR-25-E9-005753-01.
The Joe's Blend label does not say what job the soybean extract does. In food science, plant proteins are being studied as replacements for sodium caseinate in non-dairy creamers, but whether this extract plays any such role in Joe's Blend is not stated on the box. We leave it as an open question rather than turn a typical use into a claim about this product.
Source for this section: Wang and colleagues, Food chemistry: X, 2026, PMID 42358314.
We read both printed panels of the box for this page, the ingredient side and the nutrition side. Everything marked 'not printed' stays unanswered here until the supplier's sheet is published; we would rather leave a gap than fill it with an answer borrowed from another product.
Source for this section: the printed Joe's Blend box, batches 140525JCA3 and 140525JCA7.
Two papers, used only for what they measured.
Review of the wild soybean, Glycine soja, the wild ancestor of the cultivated soybean, Glycine max, covering its genetic diversity and its use in breeding.
PubMed 30038633 →Review of plant proteins used in place of sodium caseinate in spray-dried non-dairy creamers, and how processing changes their performance.
PubMed 42358314 →Education, not advice. Joe's Blend is coffee, not medicine, and carries no approved therapeutic claims. If you have a condition or take medication, talk to your doctor before adding anything new to your day.
Sources for this section: Kofsky and colleagues, Frontiers in plant science, 2018, PMID 30038633; Wang and colleagues, Food chemistry: X, 2026, PMID 42358314.
Yes. Soybean seed extract is the fifth of nine ingredients printed on the box. If you avoid soy, do not drink Joe's Blend.
It is the botanical name of the wild soybean, the wild ancestor of the cultivated soybean, Glycine max. The Joe's Blend box uses it for its soybean seed extract.
The box does not say, and we have not seen the supplier's specification sheet, so we cannot answer this yet.
The box does not print an amount. By label order it is less than the Arabica instant coffee and more than the L-carnitine.
The label does not say what the soybean extract does in Joe's Blend, and we have not seen a specification that states its purpose.
Arabica with L-theanine, L-glutathione and L-carnitine, in a 21 g sachet. Hot or iced, 30 seconds.
