Rooibos tea is naturally gluten-free — it’s an herbal infusion from a shrub, not a grain.
Yes. Rooibos (“red bush”) tea is made from the leaves of Aspalathus linearis, a South African shrub. Plain rooibos has a single ingredient — rooibos leaves — with no wheat, barley, rye, or oats. It’s not a grain and not true tea (Camellia sinensis). Major brands (Celestial Seasonings, Harney & Sons, Numi, Twinings) treat plain rooibos as gluten-free. Flavored blends are typically GF too; the only theoretical concern is a rare barley-malt flavoring in “caramel/malt” blends — verify those.
Rooibos tea is one of the safest gluten-free hot drinks — it’s a single-ingredient herbal infusion from the leaves of a South African shrub. There’s no grain involved at any stage. Plain rooibos is reliably gluten-free; the only thing to check is flavored blends, and even those are almost always fine.
Why Rooibos Is Gluten-Free
Per Celestial Seasonings’ rooibos product information: rooibos is made from the leaves of Aspalathus linearis, a shrub native to South Africa. It is NOT made from Camellia sinensis (the true tea plant) and contains no grains. Plain rooibos has a single ingredient — rooibos leaves. Per FDA labeling rules, none of the gluten-containing grains (wheat, barley, rye, oats) is involved.
Cross-Contamination Risk
Manufacturing
Low
- Single-ingredient herbal tea (plain rooibos).
- Major brands treat plain rooibos as gluten-free.
- Flavored blends: verify added natural flavors/spices.
Cafe
Low
- Sealed tea bags; plain rooibos is GF.
- Rooibos lattes/chai mixes: verify the mix, not the tea.
Home
Low
- Sealed box, standard pantry storage.
- Loose-leaf rooibos eliminates any tea-bag adhesive question.
Plain vs. Flavored Rooibos
Rooibos Forms — All GF (Plain)
- Plain rooibos tea bags (Celestial Seasonings, Twinings, Numi) — gluten-free
- Loose-leaf rooibos — gluten-free, no bag question
- Green rooibos (unoxidized) — gluten-free
- Flavored rooibos blends (vanilla, citrus, berry, chai) — typically GF; verify label
- Honeybush tea (related herbal) — naturally gluten-free
- Rooibos latte / chai mixes — verify the mix’s added ingredients
What to Look For — Or Avoid
- Plain rooibos — single ingredient (rooibos leaves), GF
- Major brands (Celestial Seasonings, Harney & Sons, Numi, Twinings)
- Loose-leaf rooibos — avoids any tea-bag adhesive concern
- Flavored blends with a clear all-GF ingredient list
- “Caramel”/”malt”-flavored rooibos — verify for barley malt (rare)
- Powdered rooibos chai/latte mixes — verify bulking agents
Frequently Asked Questions
Is rooibos tea gluten-free?
Yes. Rooibos is made from the leaves of Aspalathus linearis, a South African shrub — it’s not a grain and not true tea. Plain rooibos has a single ingredient (rooibos leaves) with no wheat, barley, rye, or oats. Major brands treat plain rooibos as gluten-free.
Is flavored rooibos gluten-free?
Almost always. Flavored rooibos blends (vanilla, citrus, berry, chai) use gluten-free natural flavors, dried fruit, and spices. The only theoretical concern is a “caramel” or “malt”-flavored blend that could contain barley-malt flavoring — verify the ingredient list on those specific varieties.
Is rooibos a real tea?
No, not in the botanical sense. True tea (black, green, white, oolong) comes from Camellia sinensis. Rooibos is an herbal infusion (“tisane”) from a different plant, Aspalathus linearis. Either way, neither is a grain and both are gluten-free.
Can tea bags contain gluten?
Theoretically, very low-quality tea bags could use a wheat-based adhesive on the seam. Major brands (Celestial Seasonings, Twinings, Numi, Harney & Sons) use food-safe bag materials and are treated as gluten-free. If you want to eliminate the question entirely, use loose-leaf rooibos.
Is rooibos chai latte gluten-free?
The rooibos and chai spices themselves are gluten-free, but powdered rooibos chai latte MIXES sometimes include bulking agents or “natural flavors” that should be verified. A rooibos chai brewed from plain rooibos plus whole spices and milk is gluten-free. Pre-made powdered mixes — read the label.
Is honeybush tea gluten-free too?
Yes. Honeybush (Cyclopia species) is a related South African herbal tea, similarly made from a shrub’s leaves and stems. Like rooibos, it contains no grains and is naturally gluten-free. The same caveats apply to flavored honeybush blends — verify added flavorings.