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Portland, Maine · Specialty Coffee Brand Deep Dive

Tandem Coffee Roasters

Editorial sacred-geometry artwork for Tandem Coffee Roasters; not a documentary photograph
IndependentRoasts its own coffeeSourcing: Farm level
TagsTandem Coffee RoastersMaine coffee roastersColombiaEthiopiaEcuadorKenyaBrazilRwandaIndependentFarm levelRoasts in-house
Visit Tandem Coffee Roasters's site

Tandem Coffee Roasters is a Portland-based specialty coffee company founded by industry veterans with roots in the San Francisco coffee scene. They operate a small-batch roastery and multiple cafe locations that integrate high-quality coffee with a community-focused bakery. The brand is celebrated for its precise, light-to-medium roast profiles that highlight the unique characteristics of their global coffee partners.

Ownership
Tandem Coffee Roasters is an independent, family-owned business founded by Will and Kathleen Pratt.
Founded
2012
Roasting
Reported to roast in-house.
What it's known for
Tandem is known for its high-clarity, fruit-driven single-origin coffees and its significant influence on the Maine specialty coffee scene. The brand is also recognized for its dual focus on high-quality roasting and its popular in-house bakery operations.
Sourcing countries
Colombia · Ethiopia · Ecuador · Kenya · Brazil · Rwanda
Farm-level sourcing
Tandem sources its coffee through partnerships with importers who prioritize fair treatment and environmental practices. They frequently identify specific producers or washing stations for their single-origin offerings, such as Faver Ninco or Fausto Romo. Their catalog includes both distinct single-origin lots and curated espresso-leaning blends.
Notable coffees
  • — Faver Ninco (Pink Bourbon)
  • — Fausto Romo
  • — La Piramide (Inza, Colombia)
  • — West End Blues (Blend)
Documented coffee offerings

Coffees researched from Tandem Coffee Roasters

These are examples recorded during editorial research. They are not a live product feed. The coffee, lot, price, and availability may have changed. We have not necessarily brewed these coffees ourselves.

External customer, cafe, marketplace, and class ratings are not comparable measures of the quality of an individual coffee. We do not convert them into original tasting scores or brand-wide star ratings. Our independent reviews are published separately after a coffee has actually been brewed and evaluated.

Verify original product sources

Retailer information: Tandem Coffee Roasters

Documented physical retailers
Tandem Coffee Roasters Café + Roastery
Historical source note (not live inventory): Physical location in Portland, Maine, selling bags of roasted coffee.
Physical
Tandem Coffee Roasters Coffee + Bakery
Historical source note (not live inventory): Physical location in Portland, Maine, selling bags of roasted coffee.
Physical
Documented online sources
Tandem Coffee Roasters's online shop
Historical source note (not live inventory): The brand's official website selling a variety of single-origin and blend coffee bags.
Website

I was able to verify the brand's two physical locations in Portland, Maine, and their official online store; however, no third-party retail partners were identified through the provided search results.

These references come from public store locators, retailer listings and brand materials. Last checked Oct 17, 2026. They are research links, not proof of current stock or a buying recommendation. Verify availability, price and location directly with the source.
In the news

Recent news and media coverage about Tandem Coffee Roasters, as documented by outside outlets. We link to the original reporting and do not rewrite or endorse it.

2026-08-07 · Portland Press Herald
What is coffee cupping? I tried it at a Portland roastery.

A local reporter participated in a public coffee cupping event at Tandem Coffee Roasters to demystify the specialty coffee tasting process. The feature highlights the roastery's commitment to transparency and education, detailing how the team approaches roasting to highlight natural coffee flavors.

2026-06-02 · Portland Press Herald
Longtime Tandem staffer leaves to tend to coffee cart business

Kenny Peterson, a veteran employee of Tandem Coffee + Bakery, departed the company after a decade-long tenure. He left to focus full-time on his independent coffee cart venture, Side by Side Coffee, with support from the Tandem ownership team.

Sources used in this deep dive
Research disclosure — this profile was compiled from public online sources on 2026-10-01. This company overview is not a tasting review. Original tasting reviews are labeled separately when they exist. Ownership, roasting and sourcing details are attributed to documented sources. While the brand provides specific producer names for many of its current single-origin offerings, it does not maintain a comprehensive, publicly searchable database of every farm or producer relationship for its entire historical catalog.

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