Natural Food Coloring (No Red 40): What to Use Instead
Red 40 is in everything — the frosting, the sprinkles, the "strawberry" that's never seen a strawberry. It's a synthetic dye (Allura Red AC), made from petroleum, and it's the single most common artificial color in American food. Some parents avoid it because studies have linked synthetic dyes to hyperactivity in a subset of kids — which is why the EU slaps a warning label on it while the US just... doesn't.
Whatever your reason, the good news is you don't need it. You can color frosting, cake batter, and royal icing with actual food — beet, turmeric, spirulina, and butterfly pea. Here's the honest version of how, because most of the "natural coloring" guides skip the part where natural colors behave differently.
The honest tradeoff (read this before you buy)
Natural colors are not a 1:1 swap for Red 40. Know this going in:
- They're softer. Natural colors give you blush pink, not neon. If you want electric-red frosting, natural coloring won't get you there — and that's fine.
- They fade and shift with heat. Beet pink turns brownish if you bake it at 350° for 20 minutes. Most natural colors are best for frosting and no-bake uses, not batters you'll bake hard.
- Some taste like things. Turmeric is bitter in quantity. Spirulina tastes a little like seaweed. Butterfly pea is the exception — it's nearly flavorless.
If you're coloring frosting (the thing most home bakers actually color), natural is an easy, better-tasting swap. If you're trying to make a fire-engine-red birthday cake, that's the one place synthetic still wins — no judgment, just know the trade.
Color by color (the part that matters)
- Pink/red → beet. Beet powder or a few drops of beet juice gives blush-to-rose pink. Best in frosting and cream cheese icing. Fades with heat, so don't bake it.
- Yellow → turmeric. A tiny pinch goes a long way and gives a warm golden yellow. Beware the flavor — start with less than you think.
- Green → spirulina or matcha. Spirulina gives a soft green with a faint earthy note; matcha gives a prettier green but adds matcha flavor (and a little caffeine).
- Blue → butterfly pea. The hardest color to do naturally, and the one worth paying for. Butterfly pea flower powder is nearly flavorless and gives a real blue — and here's the fun part: add a squeeze of lemon and it turns purple. Same powder, two colors.
- Purple → butterfly pea + lemon. Skip buying purple; just acidify your blue.
What to buy
Best all-purpose natural set
Color Kitchen Natural Food Coloring — plant-based, no synthetic dyes, and it's a powder, which matters: powders don't thin out your frosting the way liquid dyes do. This is the one clean-label set we'd reach for first.
Best natural blue (butterfly pea powder)
| Pick | Price | Rating | Why it wins |
|---|---|---|---|
| Fraunitsh Butterfly Pea 1.76oz | $6.99 | 4.5 | Best value — a small bag goes a long way since you only need a pinch. |
| INCAS USDA Organic 4oz | $14.99 | 4.6 | Best organic option, and 4oz will last a home baker years. |
| Ancient Choice 4oz | $19.95 | 4.5 | Ceremonial-grade blue matcha — the highest quality, if you also drink it as tea. |
| Suncore Foods 3.5oz | $20.99 | 4.4 | A solid alternative; Suncore is a well-known natural-color brand. |
What we'd actually buy
For a first natural-coloring kit: the Color Kitchen set (covers red/yellow/green/blue in one box) plus one bag of butterfly pea powder (the blue, because it's the only color you genuinely can't fake with a pantry staple). That two-item combo colors about 90% of what a home baker needs — the rest you already own (beet juice, turmeric, matcha).
FAQ
Does natural food coloring taste like anything?
Butterfly pea and beet are nearly flavorless. Turmeric and spirulina aren't — use less than you think. Matcha adds a real (delicious, but real) green-tea flavor.
Why does my natural blue turn purple?
Butterfly pea is pH-sensitive. Acid (lemon, cream of tartar, buttermilk) turns it purple or pink. That's a feature — one powder gives you blue and purple.
Can I bake with natural colors?
Frosting and no-bake, yes. Batters you bake hard, mostly no — natural colors fade and shift with heat. Color the frosting, not the cake.
Is natural coloring more expensive?
Per drop, no — you use a pinch of powder where you'd use a few drops of liquid. The butterfly pea is the only one with any real cost, and a bag lasts years.