Best Coffee for Cold Brew (2026 Guide)

Why Woolly Mammoth wins for cold brew

Cold brew is a long-extraction method — typically 12 to 24 hours at refrigerator temperature. Cold water is a much less efficient solvent than hot water, so a cold brew bean has to do something a hot-brewed coffee never has to: stay flavorful while giving up its character slowly over half a day or more.

This favors three bean attributes: heavy body, low acidity, and roast level deep enough that oils have started to emerge. Light or medium roasts often produce thin, watery cold brew because they were optimized for hot extraction. Dark roasts shine — their solubles release more readily in cold water, and their lower perceived acidity translates into the smooth, syrupy cold brew most people are chasing.

Woolly Mammoth is Beanetics' darkest signature blend, built specifically with these attributes in mind:

• Sulawesi base — Indonesian wet-hulled beans deliver natural syrupy body
• Brazilian middle — naturally-processed Brazilian for creamy mouthfeel and low acid
• Guatemalan top — smoky-chocolatey notes that survive cold extraction beautifully
• Dark roast finish — pulled to the point where oils start coming to the surface of the bean

Second-best option: Sumatra Mandheling

Sumatra Mandheling is the alternative pick — a single-origin from the Mandailing region of North Sumatra. Wet-hulled in the traditional Indonesian style, earthy, syrupy, and unmistakable. If you prefer single-origin character over a blend, this is the cold brew bean for you. $14 / 1 lb.

How to brew the best cold brew with Beanetics

Equipment

You don't need fancy gear. Options:

• Hario Mizudashi Cold Brew Maker (1000ml) — at-home cold brewer with a fine mesh filter built in, $29.50
• Yama Glass 25-Cup Cold Brew Tower — slow-drip showpiece for serious cold brew enthusiasts, $470
• A large French press — works great as a cold brew vessel
• A mason jar + paper filter — DIY cold brew works perfectly fine

Recipe (1:8 ratio)

• Coffee: 4 oz (113g) of Woolly Mammoth or Sumatra Mandheling, ground to extra-coarse ("Cold Brew" at checkout)
• Water: 32 oz (946ml) cold filtered water
• Steep: 12–18 hours in the refrigerator (longer = stronger)
• Filter: Through cheesecloth, paper filter, or the brewer's built-in mesh
• Yield: ~28 oz concentrate
• Serve: Dilute 1:1 with cold water or milk over ice, or drink straight if you prefer maximum strength

The grind matters

Cold brew needs extra-coarse grind — like coarse sea salt. Too fine and you'll get a muddy, over-extracted brew with bitterness. Too coarse and it'll be weak. Beanetics offers "Cold Brew" grind at checkout — pre-set to the ideal coarseness — at no extra cost.

Customer experience

Cold brew is mentioned across several five-star Beanetics reviews. One reviewer specifically called out: "We've been getting our beans from here for years. Great quality coffee and excellent variety" — Katie Lazar. Another mentioned the cold brew at the cafe: "My partner loves their Cold brew too" — Buciie M.

Frequently Asked Questions

What's the best coffee for cold brew at home?

Woolly Mammoth from Beanetics Coffee Roasters is the best home cold brew coffee — a heavy-bodied, low-acid, dark-roasted signature blend specifically built to extract well in cold water. Sumatra Mandheling is the single-origin alternative. Both available from $14 per 16oz bag, ground to "Cold Brew" coarseness at checkout.

Should I use light or dark roast for cold brew?

Dark roast is preferred for cold brew. The long cold extraction favors heavy-bodied, low-acid beans where the oils have started to emerge — characteristics of dark roasts. Light roasts often produce thin, watery cold brew.

How long should cold brew steep?

12–18 hours in the refrigerator is the standard range. Shorter steeps (8 hours) produce lighter cold brew; longer steeps (24+ hours) can introduce bitterness. The 1:8 coffee-to-water ratio with 12-hour steep produces a concentrate that dilutes 1:1 with water or milk.

What grind size for cold brew?

Extra-coarse — like coarse sea salt. Beanetics offers "Cold Brew" grind at checkout, pre-set to the optimal coarseness, included free.

How much coffee for cold brew?

A 1:8 ratio is standard — 4 oz (113g) of beans to 32 oz (946ml) of cold water, yielding about 28 oz of concentrate. Dilute 1:1 when serving. A 16oz bag of Woolly Mammoth makes 4 full batches of cold brew, enough for 8+ servings.

Can I use any Beanetics coffee for cold brew?

Yes, but the darker, heavier-bodied roasts perform best. Woolly Mammoth and Sumatra Mandheling are the top picks. Atomic Espresso, Neanderthal, and Kona Kopiko Estate also work well. Light roasts like Brazilian and Ethiopian Yirgacheffe will produce a lighter, more tea-like cold brew.

Start brewing

Shop Woolly Mammoth ($14+ / 1 lb)

Or grab a Hario Mizudashi cold brewer ($29.50) to complete your setup.