Slippery elm tea: how to make it and what it does

Slippery elm tea is made by stirring or steeping bark powder in hot water, where its mucilage forms a thick, slightly gelatinous texture. No clinical trial has tested tea specifically — the research that exists used bark powder inside capsule-style formulas, not a brewed drink.

How to make it

Stir about 1 to 2 teaspoons of slippery elm bark powder into a cup of hot water, or steep whole or chopped bark pieces for a few minutes if that's the form you have. The mucilage thickens as it hydrates, so the texture changes the longer it sits — some people prefer it after a short steep, others let it thicken further. There's no research-based "correct" steep time; it's a matter of taste and texture.

What it tastes and looks like

Slippery elm tea has a mild, slightly sweet, oat-like flavor, and turns cloudy to opaque as the powder mixes in — it looks and feels noticeably thicker than a typical steeped-leaf tea because of the mucilage, not because anything has gone wrong with the brew.

Commercial tea products

Slippery elm shows up in commercial herbal tea blends, often combined with licorice root or marshmallow root, another mucilage-forming plant with a similar demulcent property. Buying a blend means you're also getting whatever else is in it — check the ingredient list if you specifically want slippery elm alone rather than a blend.

Tea versus other forms

No trial has compared tea against capsules or straight powder for any outcome. All three deliver the same bark powder; tea is simply the powder mixed with more water and taken as a drink rather than swallowed. See slippery elm powder and liquid for how the other forms are typically used.

Sore throat and reflux

The mucilage's coating property is a physical, mechanical effect regardless of format — hot water or capsule, it's the same polysaccharide. Separately, a lab-dish study found a slippery elm bark extract slowed the growth of the bacteria that causes strep throat, and a 2019 review described slippery elm as a popular but under-tested remedy for reflux and related esophageal symptoms. Neither result was measured using tea specifically, and neither is a clinical trial in people drinking it for a sore throat or reflux.

A few practical questions

Slippery elm tea made from bark alone, without added sweetener, contains minimal calories — no meaningful fat, sugar or protein — though whether that counts toward a fast depends on the specific fast someone is following, not something research on slippery elm addresses. No evidence identified for this page connects slippery elm tea to drowsiness or a sedative effect.

Safety

The safety picture for slippery elm tea is the same as for other oral forms — see slippery elm side effects and who should not take slippery elm for what's documented and what isn't.

Questions people ask

How do I make slippery elm tea from bark powder?

Stir 1 to 2 teaspoons into a cup of hot water. It thickens as the mucilage hydrates; there's no research-based ideal steep time.

What does slippery elm tea taste like?

Mild and slightly sweet, with an oat-like flavor and a texture noticeably thicker than a typical tea because of the mucilage.

Does slippery elm tea help acid reflux or a sore throat?

No trial has tested brewed tea specifically for either. The closest evidence is a lab-dish antibacterial test and a review calling slippery elm popular but under-tested for reflux — neither is a clinical trial of tea in people with either symptom.

Is slippery elm tea safe to drink?

See slippery elm side effects for what's documented; there's no dedicated safety trial of tea as a form.

Related reading: how to choose a slippery elm product, slippery elm benefits: what the research does and doesn't show, and slippery elm powder and liquid.