Beetroot Powder as a Natural Colour: Pigment Stability, pH and Heat for Formulators

By the Silk Route Ventures Trade Team | 12 October 2026

Buyer’s snapshot

• Beetroot powder colours through betalains, a water-soluble pigment family. Published work on red beet betalains finds the colour holds best around pH 5 and falls away toward pH 3 and pH 8, with heat accelerating the loss (Molecules, 2022).
• In the US, dehydrated beets (beet powder) is a listed colour additive exempt from certification under 21 CFR 73.40, with a volatile matter ceiling of 4 percent.
• In the EU, whole dehydrated beetroot can sit on the colouring-food side of the line, while a pigment-concentrated beetroot extract is the additive E162 and must be labelled as a colour. Confirm the classification for your exact ingredient before you print a label.
• Silk Route Ventures (SRV) supplies bulk and private-label beetroot powder from a BRCGS and FSSC 22000 V6 audited facility in Matale, with a 50 kg first-order MOQ and samples in 3 to 5 business days.
• For bakery, dairy-free and dry-mix colour, this post is the spec. For a bright red in a hot, low-acid, long-shelf-life beverage, a carotenoid or anthocyanin colour is the more honest answer.

Most beetroot powder complaints reach a supplier after a product has been developed, not before. The pink bakery crumb that went grey-brown in the oven. The dairy-free latte that looked right on day one and dull on day sixty. None of those is a supplier fault. They are what betalain chemistry does when pH, heat and light are not designed around it. This piece covers where beetroot powder works as a natural colour, where it fades, and what to write on the RFQ.

What gives beetroot powder its colour?

Beetroot powder is dehydrated, milled red beet (Beta vulgaris), and its colour comes from betalains: red-violet betacyanins, mainly betanin, and yellow betaxanthins. These pigments are water-soluble and sit in the root’s cell sap, so the powder behaves differently from a carotenoid colour such as paprika or annatto. It dissolves into aqueous systems, tints fat-free matrices well, and does not rely on oil to carry it.

That is the first design fact. Beetroot powder is a whole-food ingredient that also colours, not a standardised pigment. Colour strength varies with variety, harvest and drying, and the pigment sits alongside the root’s sugars, fibre and the earthy, geosmin-type flavour note some buyers find on the nose. A formulator who needs a fixed hue every batch should buy against a colour-strength basis, not against the word “beetroot.”

How do pH, heat and light change the colour?

Betalain colour is more sensitive than most buyers expect, and the three drivers act together. In a study of red beet betalain-rich extract, stability was highest at pH 5 and declined toward pH 3 and pH 8, and the effect was stronger at 85 °C; at that temperature and pH 3, betanin and isobetanin retention fell to 3 to 6 percent in an acetate buffer (Molecules, 2022). Lower temperatures of 30 and 50 °C kept the pigment far better in acidic conditions.

The same paper reports that transition metal ions lower betanin stability in storage and at high temperature, and that chelators such as EDTA and citrates slow the loss. Light and oxygen are the other two drivers named in the literature, and both matter most in wet systems with metal contact.

Condition	What happens to beetroot colour	Practical response
pH around 5	Highest stability reported	Target the mildly acidic window where the product allows it
pH 3 or below	Faster loss, shift away from true red	Avoid in strongly acidic beverages and sour coatings
pH 8 and above	Degrades toward yellow-brown	Avoid in alkaline bakery systems and high-leavening mixes
High heat (85 °C and above)	Large betanin loss, orange-red shift	Add late, shorten time, or choose another colour
Light exposure	Gradual fade in clear packs	Opaque or light-barrier packaging
Iron or copper contact	Faster oxidation in wet systems	Chelator such as citrate; check water and equipment
Dry powder, low moisture	Far more stable than the wet pigment	Control moisture and water activity in the blend

The row that matters most to a CPG scale-up is the last one. Dry betalain in a low-moisture matrix is the use case where beetroot powder is strongest: dry mixes, coatings, seasonings, dairy-free powder premixes. The moment the same powder goes into a hot, wet, long-shelf-life system, the chemistry turns against it.

Where does beetroot powder work, and where does it fade?

The reliable applications share three traits: moderate pH, low to moderate heat exposure, and short or dry storage. The fragile ones break at least one.

Where it works: cold-set and dry-mix products, dairy-free latte and shake premixes, pasta and noodle doughs cooked briefly, savoury seasoning blends, sugar-based coatings and fillings, and cold beverage bases near pH 4 to 5.5. The dairy-free premix category is a good fit because the powder is the colour and the flavour is mild and earthy; the dairy-free hot chocolate and latte premix guide covers how colour fits the blend.

Where it fades: baked goods with long oven times and chemical leaveners, which push the crumb alkaline and add heat; acidified beverages near pH 3; retorted or hot-filled products; and anything in clear glass with a long shelf life. A baker who wants a pink velvet crumb will usually get a brown one. A coating added after the bake, or a pH-adjusted filling, is the more reliable route.

A short operator note from the SRV procurement desk: the most common reformulation request on colour powders is not “find a different supplier,” it is “move the beetroot step later in the process.” Heat history decides the shade more often than the powder does.

How do the US and EU treat beetroot powder?

The label consequence is as important as the chemistry, and the two markets draw the line differently.

In the US, dehydrated beets (beet powder) are a listed colour additive exempt from certification under 21 CFR 73.40 (eCFR). The regulation describes a dark red powder from sound, mature edible beets, with volatile matter at 4 percent or less, acid-insoluble ash at 0.5 percent or less, and limits of 10 ppm lead and 1 ppm each for arsenic and mercury. Use is allowed in foods generally at levels consistent with good manufacturing practice, except foods with a standard of identity that does not permit added colour. Verify the current rule text with your regulatory adviser before you finalise a label.

In the EU, the line runs between a colouring food and an additive. Guidance notes adopted by the Commission’s Standing Committee on the Food Chain and Animal Health in late 2013 set the criteria (Food Ingredients First, December 2013): a colouring food is a food ingredient with colouring properties that is minimally processed and retains the characteristics of its source, while a product made by selective extraction of the pigment is an additive colour. For beetroot, that generally means whole dehydrated beetroot powder can be treated as a colouring food, and a betanin-enriched extract is E162 (beetroot red), which is declared as a colour. The classification decides whether “colour” and an E-number appear on the pack, so confirm it for your exact ingredient and destination.

What should the beetroot powder spec cover?

A usable spec names what the colour has to do, then tests for it. The Spec snapshot below is the working core.

Spec snapshot: bulk beetroot powder

• Source: red beetroot (Beta vulgaris), whole root, dehydrated and milled
• Colour: strength measured on a stated basis, reported per batch, with a reference sample or hue target agreed before the first order
• Moisture: set a ceiling (the US colour additive listing caps volatile matter at 4 percent) and report water activity
• Mesh: stated against the application, finer for beverage and premix dispersion, coarser for seasoning and coating
• Screening: microbial (TPC, yeast and mould, Salmonella, E. coli), heavy metals, pesticide residue to the destination market
• Certification: BRCGS and FSSC 22000 V6; USDA Organic and EU Organic on selected SKUs, confirmed per SKU
• SRV MOQ: 50 kg first order; sample dispatch 3 to 5 business days by international courier

One discipline helps more than any single number: agree a colour reference with the supplier before the first order, and keep a retained sample. Without a physical reference, two batches can both pass the COA and still look different in the finished pack. The fruit powder RFQ primer covers moisture, mesh, carriers and sampling in the wider powder category, and most of it applies here.

Sourcing beetroot powder from Matale

Silk Foods Ceylon (SFC) mills and blends vegetable and fruit powders at its Matale facility, on a spice and powder line rated at 100 to 200 kg per hour, with spray-drying capacity of 50 kg per day for carrier-based powders. Every batch ships with a COA, and the full documentation pack (commercial invoice, packing list, bill of lading or air waybill, certificate of origin, phytosanitary certificate and, for organic SKUs, the transaction certificate) travels with every order. The facility’s broader powder capacity is set out in the fruit and vegetable powder manufacturing capacity guide.

Timelines are simple to plan around: production runs 2 to 3 weeks from purchase order to dispatch, and sea freight adds 3 to 4 weeks to the EU and Australia or 4 to 5 weeks to the US. For a brand developing a colour-led SKU, R&D from a signed brief to an approved formulation runs 3 to 4 weeks at most, so a shade trial and a stability check can both fit before a first production order.

Buyer’s checklist: specifying beetroot powder as a colour

1. State the application, pH and the heat step it must survive.
2. Set a colour-strength basis and agree a reference sample or hue target.
3. Set moisture and water activity ceilings, and a mesh for the application.
4. Confirm the EU classification (colouring food or E162) for your exact ingredient.
5. Require the cert stack and, for organic SKUs, the organic transaction certificate.
6. Request a retained sample and a stability trial in your own matrix before the first PO.
7. Plan packaging: light barrier and low moisture ingress.

FAQ

Is beetroot powder stable enough to use as a natural food colour?
It is stable in dry, low-moisture and mildly acidic systems, and unstable under heat, strong acid or alkali. A 2022 study in Molecules found betanin retention highest at pH 5 and, at 85 °C, down to 3 to 6 percent at pH 3 in an acetate buffer. Add it late, keep it dry, and trial it in your own matrix.

Is beetroot powder a colouring food or an additive in the EU?
Under the 2013 Commission guidance notes, a minimally processed ingredient that keeps the characteristics of its source can be a colouring food, while a pigment obtained by selective extraction is an additive colour. Whole dehydrated beetroot generally sits on the colouring-food side; a betanin extract is E162 and is labelled as a colour. Confirm the case for your product.

What does the US require for beet powder as a colour?
Dehydrated beets (beet powder) is listed as a colour additive exempt from certification under 21 CFR 73.40, with volatile matter at 4 percent or less and lead at 10 ppm or less (eCFR). It is allowed in foods generally at good manufacturing practice levels, except where a standard of identity bars added colour.

Does Silk Route Ventures supply private-label beetroot powder?
Yes. Silk Route Ventures supplies bulk and private-label beetroot powder from the BRCGS and FSSC 22000 V6 audited Silk Foods Ceylon facility in Matale, with USDA Organic and EU Organic transaction certificates on the certified SKUs. First-order MOQ is 50 kg, samples ship in 3 to 5 business days, and a COA accompanies every batch.

How Silk Route Ventures can help

Silk Route Ventures supplies vegetable and fruit powders and the wider Ceylon ingredient range to specialty brands, CPG scale-ups and multi-category distributors across the US, EU and Australia. Bulk beetroot powder ships against the buyer’s colour and moisture spec from the BRCGS and FSSC 22000 V6 audited Silk Foods Ceylon facility in Matale, with a COA on every batch and organic transaction certificates on the certified SKUs. First-order MOQ is 50 kg, with production at 2 to 3 weeks from purchase order to dispatch. For brands launching a colour-led private-label SKU under their own label, SRV runs private label manufacturing from the same site, with R&D to an approved formulation in 3 to 4 weeks at most. Contact us to send an inquiry or request a sample. For the wider range, see our Ceylon spice and ingredient supplier page.