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Mt. Siyeh (Instant Mushroom Coffee)

Clear focus and calm energy in every cup.

A smooth, aromatic instant mushroom coffee crafted from Papua New Guinea single origin beans enhanced with Lion's Mane and Chaga. Expect clean sweetness and balanced body with gentle, grounding notes from the mushrooms — designed for clear focus and calm...
$27.991.9 oz
Grind Type
This purchase removes 1lb of ocean plastic
Mt. Siyeh (Instant Mushroom Coffee)
Tasting Profile

What's in the Cup

Berry Acidity
Cacao
Sweet Toffee
Toasted Almond
altitude
1400 – 1800m
origin
Papua New Guinea
process
Washed / Freeze-Dried
sca
N/A
The Story

Why Mt. Siyeh (Instant Mushroom Coffee)?

A smooth, aromatic instant mushroom coffee crafted from Papua New Guinea single origin beans enhanced with Lion's Mane and Chaga. Expect clean sweetness and balanced body with gentle, grounding notes from the mushrooms — designed for clear focus and calm energy in every cup. Silky instant mushroom coffee with toasted almond, berry-like acidity, and sweet toffee. Lion's Mane contributes a clean, cacao-like dryness and mental clarity, while Chaga adds gentle earthiness, subtle vanilla-bark warmth, and a rounded, calm finish. Premium instant mushroom coffee combining single origin Papua New Guinea Arabica with functional mushrooms grown in volcanic soils.
Shop Mt. Siyeh (Instant Mushroom Coffee) Back to Collection
CleanHub Certified
Mycotoxin Free
SCA Specialty Grade
Small Batch

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Verified Reviews

Sailor’s Log

5-star ratings from real customers, verified by Junip

Colombia Huila

“I've tried a lot of specialty coffee brands but Harbor Heights is on another level. The Colombia Huila is the best cup I've had all year.”

J
James R.
Boston, MA
Nantucket Medium

“Ordered the Nantucket Medium and it arrived fresh and beautifully packaged. The bag label artwork alone is worth it.”

T
Tyler B.
Newport, RI
Block Island Dark

“The Block Island Dark is bold without being burnt. Finally a dark roast that doesn't taste like charcoal.”

L
Lauren W.
Portsmouth, NH
Mission

“The fact that every bag removes ocean plastic makes me feel good about my morning ritual. Great coffee with a real purpose.”

S
Sarah M.
Portland, ME
Guatemala Reserve

“Clean, smooth, no bitterness. The Guatemala Reserve is my new morning go-to. Harbor Heights has earned a customer for life.”

R
Rachel D.
Brookline, MA
Colombia Huila

“I've tried a lot of specialty coffee brands but Harbor Heights is on another level. The Colombia Huila is the best cup I've had all year.”

J
James R.
Boston, MA
Nantucket Medium

“Ordered the Nantucket Medium and it arrived fresh and beautifully packaged. The bag label artwork alone is worth it.”

T
Tyler B.
Newport, RI
Block Island Dark

“The Block Island Dark is bold without being burnt. Finally a dark roast that doesn't taste like charcoal.”

L
Lauren W.
Portsmouth, NH
Mission

“The fact that every bag removes ocean plastic makes me feel good about my morning ritual. Great coffee with a real purpose.”

S
Sarah M.
Portland, ME
Guatemala Reserve

“Clean, smooth, no bitterness. The Guatemala Reserve is my new morning go-to. Harbor Heights has earned a customer for life.”

R
Rachel D.
Brookline, MA