Ground Coffee · Medium-Dark Roast · 340g Bag

The Mentalist — Bulletproof® Medium-Dark Roast Ground Coffee 340g

A medium-dark roast Arabica ground coffee with a full-bodied, smooth flavour and tasting notes of cherry, almond, and caramel. Single-origin beans from high-altitude estates in Guatemala and Colombia.

340g bag · Hand-picked beans · Rainforest Alliance Certified · Nitrogen-flushed packaging with degassing valve for freshness.

Key Points

  • Single-origin coffee — sourced from high-altitude estates in Guatemala (June–December roasting) and Colombia (December–June roasting)
  • Hand-picked beans — only ripe berries selected by skilled harvesters
  • Medium-dark roast — full-bodied and smooth, with tasting notes of cherry, almond, and caramel
  • Rainforest Alliance Certified beans from estate farms
  • Sustainable processing — washed and mechanically dried via established techniques
  • Pre-ground to a medium grind — suited to drip, syphon, and pour-over brewing methods

What It Is

This is The Mentalist in pre-ground format — Bulletproof®'s medium-dark roast option. It uses the same estate-sourced Arabica beans as the Original Bulletproof Coffee, taken to a longer roast for a fuller body and darker flavour profile. No added ingredients — just coffee.

The medium-dark roast sits between the Original (medium) and French Kick (dark) — if you prefer a bolder coffee than the Original but not as intense as the darker French Kick, The Mentalist is the middle option.

If you prefer to grind your own beans, the same coffee is also available in whole bean format.

Sourcing

Where the beans come from: Bulletproof sources beans from estate farms in Guatemala and Colombia on a six-month rotation — beans roasted between June and December come from a Guatemalan estate; beans roasted between December and June come from a Colombian estate.

How the beans are picked: Hand-picked by experienced coffee harvesters who select only perfectly ripe berries.

How the beans are processed: Beans are sustainably washed and mechanically dried before being roasted to a medium-dark profile.

Product Specifications

Format Pre-ground coffee
Grind Level Medium — suited to drip, syphon, and pour-over brewing
Bag Size 340g
Roast Level Medium-Dark
Bean Type 100% Arabica
Origin Guatemala (June–December) and Colombia (December–June)
Tasting Notes Cherry, almond, caramel — full-bodied and smooth
Packaging Nitrogen-flushed bag with one-way degassing valve
Storage Store sealed at room temperature. For long-term storage, unopened bags can be frozen — place tape over the degassing valve first.

Brewing Notes

The medium grind in this product is set up for:

  • Drip coffee makers — ideal grind
  • Syphon brewing — ideal grind
  • Pour over — works well
  • Moka pots — works well (the medium-dark roast suits moka pot brewing especially)

For AeroPress, French press, cold brew, or Turkish coffee, the medium grind isn’t ideal — you’ll need to increase the brew time (typically 3+ minutes) to compensate. If you regularly use these methods, the whole-bean version may suit you better. For espresso, the whole-bean version is strongly recommended — the medium-dark roast is excellent for espresso but requires a fine grind not available in this pre-ground product.

The Bulletproof Coffee Recipe

"Bulletproof Coffee" is a popular preparation method that combines brewed coffee with grass-fed butter (or ghee) and MCT oil.

Bulletproof Coffee Preparation

  1. Brew 2 cups of coffee using the method of your choice
  2. Combine with 2 tablespoons of unsalted grass-fed butter (or grass-fed ghee for a dairy-free option)
  3. Add 2 tablespoons of MCT oil (such as Primal Warrior C8 MCT Oil or Bulletproof Brain Octane)
  4. Blend in a high-speed blender (or use an Aerolatte® frother) until a creamy head of foam forms
  5. Pour and drink while hot

The medium-dark roast profile of The Mentalist gives Bulletproof Coffee a fuller, richer body compared with the Original.

Packaging Notes

Pre-ground coffee tends to lose freshness faster than whole beans because the increased surface area accelerates oxidation. To extend freshness, this product is packaged in a nitrogen-flushed bag with a one-way degassing valve — the nitrogen displaces oxygen at packaging, and the valve lets CO2 from the beans escape without letting oxygen in. Bags stay fresh at room temperature for several weeks once received. For longer storage, unopened bags can be frozen (place tape over the degassing valve first to prevent moisture infiltration).

Good to Know

How is this different from the Original Bulletproof Coffee?

Same estate-sourced beans and processing, but roasted longer to reach a medium-dark profile. The result is a fuller-bodied cup with darker flavour notes (cherry, almond, caramel) instead of the Original’s brighter fruit-and-spice profile (cinnamon, plum, orange).

Which roast should I pick?

If you like a smooth, balanced cup with brighter notes, go with the Original (medium roast). If you like a fuller-bodied cup that carries through milk-based drinks, The Mentalist (this product) is a good pick. If you want something darker and more intense, try French Kick (dark roast). If you want to try all three, the 3-Roast Variety Pack has one bag of each.

How much caffeine is in a cup?

Coffee caffeine varies with brewing method and water-to-coffee ratio. A typical cup of brewed drip coffee (240mL) made from this coffee contains roughly 80–120mg of caffeine. Australian dietary guidelines recommend adults limit caffeine intake to no more than 400mg per day from all sources combined.

Do I have to make Bulletproof Coffee with it?

No. This is regular ground coffee. Make it however you normally make coffee. The Bulletproof Coffee recipe (with butter and MCT oil) is one popular option but not the only way to use it.

  • 5 stars: 162 (92%)
  • 4 stars: 10 (6%)
  • 3 stars: 2 (1%)
  • 2 stars: 1 (1%)
  • 1 star: 1 (1%)
M
Moana Young (Perth, AU)
Best coffee ever!!

I always start my day with the Bullet Proof coffee, it’s the best. My fav is the original but time to time will mix it up with the Mentalist.

V
Verne Maree (Perth, AU)
Smooth, rich and satisfying

Sorry - that title might sound like a 70s commercial for cigarettes, which sort of gives my age away! Anyway, after several years of drinking mainly espresso, I'm now enjoying a plunger/cafetiere-style brew, secure in the knowledge that it's mould-free and sustainably sourced. And whizzing it up with a shot of Bulletproof MCT Oil takes coffee-drinking to a whole new level.

S
Shirley Ingham (Perth, AU)
The Mentalist

This coffee has become my favourite

J
Jacqueline (Brisbane, AU)
Love it!

I love this coffee.
The flavour is fresh and full bodied.
The aroma alone when popping the lid is a great pick up.
I love how fresh it is!

M
Mike Dennehy (Lower Hutt, NZ)
Reliable quality, great taste

I've been using The Mentalist dark roast, both beans and ground, for at least 7 years now. It's part of my morning routine and I really enjoy the taste, quality and consistency. I've never had a bad batch, or bag, and it lasts me exactly 2 weeks so I can ensure I buy in advance of running out (as long as Optimoz has stock!)

J
Jessica (Gold Coast, AU)
My favourite Mycotoxin free plunger coffee

Came back to Optimoz and Bulletproof coffee after some time. This blend, "The Mentalist" is just the right depth and richness. The grind is super for French press. Price is reasonable.

J
Jessica (Gold Coast, AU)
Really well rounded coffee

I like the organic mycotoxin free coffee and this flavour is a great all-rounder. Sometime mix with a scoop of French Kick for more punch :-)

G
Graeme White (Melbourne, AU)
Superpowers

Once I have had a cup of mentalist I seem to be able to predict people’s thoughts….spooky!

M
Michael Webber (Melbourne, AU)
Even better than Original

This has such a smooth flavour. Goes so well as a Bulletproof coffee. This one is my favourite

T
Todd Newlands (Sydney, AU)
My favourite

I start with the original bend but much prefer the deeper darker favours of this blend. I’ll be purchasing again.

S
Sally G (Melbourne, AU)
Perfect coffee

The Mentalist Bulletproof coffee is my favourite coffee along with French Kick. It comes perfectly ground for an Aeropress and always tastes divine. Highly recommended.

S
Sonya Whitton (Brisbane, AU)
Mentalist roast

This coffee is one of the most delicious coffee I've had the pleasure to purchase, it is an absolute joy waking every morning knowing my delicious coffee awaits me,what a beautiful start to my day.

I
I. (Sydney, AU)
Smooth and steady

TLDR: this coffee has a smooth flavour, doesn’t leave me with the jitters or irritate my bladder.
I’m one of these people whose brain doesn’t really switch on with a coffee but I never got around the bitter taste and always would get the jitters. I actually didn’t notice until switching to bulletproof coffee that other coffees were probably irritating my bladder or something, because those times that I forget to reorder before I run out and use the other coffees in the house I definitely notice now how much they have me needing to relieve myself often. And this coffee doesn’t leave me with the jitters like other coffee does.

A
Alison B. (Gold Coast, AU)
Smooth but rich flavour

Highly recommend you buy this coffee, a little French press and MCT oil. It's delicious and you won't even want to go out for coffee after trying it. It's smooth and rich in flavour. Not at all bitter.

O
Olivia

The best coffee and the best customer service

D
David

Not bad. I’m enjoying my morning coffee very much.

J
Jess Verdier (Sydney, AU)
Best coffee

The best for making bullet proof coffees!

D
David Berry (Sydney, AU)
Part of my staple bullet proof rotation

Part of my staple bullet proof rotation, always a good way to start the day and not be hungry for ages.

T
Throestur Hrafnsson (Perth, AU)
Very Good Taste

Love the taste of The Mentalist.

R
Ros Reid (Melbourne, AU)

The Mentalist Dark Roast Ground Coffee - 340g

J
John

Great coffee, just a bit expensive for coffee.

R
Robert Loats (Melbourne, AU)
Mentalist dark roast ground coffee

Like the coffee, drink every day, how do I use my reward points?

C
CRAIG GORDON (Gold Coast, AU)
Mentalist Dark Roast

Delicious, great for energy, mental alertness and memory recall. Paired with MCT and Butter for a pre workout boost.

D
Daniel Luhrs (Melbourne, AU)
Great coffee

Awesome coffee. Bought as toxin free

S
Sara Sidor (Toowoomba, AU)

The Mentalist Dark Roast Ground Coffee - 340g

D
Donna Gudgeon (Sydney, AU)
BULLETPROOF COFFEE

You can taste the difference. Cleaner and with added bonuses!

W
Watt B (Townsville, AU)
Devine

It is heavenly

M
Michelle Allenby (Perth, AU)
Great Product

shipped quickly

L
Luke Buttigieg (Jordan Springs, AU)

The Mentalist Dark Roast Ground Coffee - 340g

D
Daniel Waterson (Auckland, NZ)
Yum

Yum

N
Natalie (Canberra, AU)
My favourite blend of bulletproof coffee

My favourite blend of bulletproof coffee

A
Andy Hannagan (Central Coast, AU)
Excellent

Love these products