Frequently Asked Questions (FAQs)

Frequently Asked Questions


Why Moccamaster?

1. 5-year limited warranty.
2. All Moccamasters meet strict brewing guidelines set forth by the European Coffee Brewing Centre (ECBC), Specialty Coffee Association of America and Europe (SCA), these guidelines include: brew at the correct temperature (196°F - 205°F), -- with a copper boiling element -- which is important for coffee soluble extraction steep coffee grounds for the right amount of time (less than 6 minutes to brew full cycle) -- via a cone-shaped brew-basket (for less than 1.8 liter brewers) Hold brewed coffee at the right temp, without burning (175°F - 185°F) -- using a unique, independent hot-plate element with auto-shut-off in 100 minutes
3. Handmade in the Netherlands using quality parts, durable metal housings, and where plastics are used, they are BPA/BPS/BPF and Phthalate FREE. To ensure quality, every brewer is tested before shipping.
4. Moccamasters use a copper boiling element which allows for consistent water temperature control (copper is antibacterial in function).
5. Moccamasters are simple to use, with a quiet brew process.
6. All Moccamaster brewers are energy efficient, timeless in design, long-lasting, reliable, cleanable, recyclable and sustainable!

What are the differences between Moccamaster brewer models?

Volume: 0.3-liter (10-oz/ 2.5 Cup) - Cup-one 1-liter (32oz/8-cup) – KB-8, KBTS 1.25-liter (40oz/10-cup) – K, KB, KBG, KBT, KBGT, CDG, CDGT, CDT 1.8-liter (60oz/15-cup) – CD Grand, CDT Grand
Body: K Series: rectangular tower housing C Series: cylindrical/round tower housing
Carafe: Thermal Carafe (without hot-plate) or Glass Carafe (with hot-plate)
Brew-Basket: Manual-adjust drip-stop, Automatic drip-stop, Pour-over style
Auto-off power switch: Glass carafe models switch off at 100 minutes, Cup-One models immediately switch off after brewing. There isn’t a need for an AO power switch on Thermal Carafe models because the copper boiling element automatically turns off via the float switch, after water drains from the water reservoir. The power switch light remains on, but only indicates it’s ready, but doesn’t draw any power to the element.

Brewing coffee

Does coffee grind (particulate) size make a difference?

Brewing parameters are important, however grind is also important. Consistent and equal grind particulate size will ensure your coffee-to-water contact time is producing an even homogeneous extraction and well balanced perfect cup. Moccamaster recommends a medium (drip) grind particulate size, following the water-coffee ratio below. Too fine a grind may cause an over-flow of the brew-basket and/or an over-extracted bitter tasting outcome; and too coarse a grind may under-extract and cause a flavorless result.

What is coffee bloom?

Moccamaster brewers are scientifically designed to brew with an ultra-precise, pre-immersion drip-style system, which creates a natural pulse action process. As water (heated to the proper temperature) contacts the coffee grounds, and a gas is released, causing the “coffee bloom”, which is the flavor being released from the coffee grounds. The pulse action can easily be viewed through the clear water reservoir and glass transfer tube. While the coffee bloom can be witnessed when peeking under the brew-basket lid near the beginning of the brew process, we don’t recommend removing the brew-basket lid as it will release heat, and could potentially cause a burn, compromising your safety.

What formula does Moccamaster recommend?

We recommend guidelines set forth by the ECBC and the SCA: 55 grams of coffee per 1 liter of water or 2tbsp for every 6oz of water.

Volume(note: European cup size is 4oz) Grams Moccamaster 2-Tbsp Scoop Table spoons "About"
1.8 L / 15-Cup (Grand) 99 10 20 10-level scoops
1.25 L / 10-Cup 68.75 6.66 13.32 7-level scoops
1 L / 8-Cup 55 5.33 10.66 5-heaping scoops
3/4 L / 6-Cup 41.25 4 8 4-level scoops
5/8 L / 1/2 pot (5-Cup) 34.4 3.33 6.66 3-heaping scoops
1/2 L / 4-Cup 27.5 2.66 5.32 3-level scoops
0.3 L / Cup-one 16.5 1.66 3.32 2-level scoops

NOTE: If the final brewed coffee seems too strong, we recommend not changing the formula, but adding hot water to your cup, weakening the coffee, while protecting the taste. If you find the final brewed coffee too weak for your taste, we recommend changing your coffee variety and/or roast profile; we do not recommend increasing the formula.
ECBC – European Coffee Brewing Centre
SCA – Specialty Coffee Association of American & Europe

What about water?

If it tastes good to drink, it’ll make good coffee. If you wouldn’t drink it, then don’t brew with it! We recommend fresh tap water if it tastes good, otherwise filtered or bottled water is fine too. We do not recommend the use of reverse osmosis filtered water or distilled water because it can cause damage to the copper boiling element.

Is there a difference in filters and why does Moccamaster recommend oxygen whitened paper filters?

Moccamaster oxygen whitened filters are the perfect choice for clean, crisp, unflavored coffee. Brown unbleached filters may leave a “cardboard” taste in your coffee, and permanent wire-mesh type filters can clog with coffee oils quickly, overflowing the brew-basket and/or steeping the coffee too long, potentially resulting in over-extracted bitter tasting coffee.

Brewer Questions

Can the Moccamaster instruction manual be found online?

Yes, Technivorm Moccamaster USA website: Moccamaster or email

Why is there a dual-phase hot-plate switch on Glass Carafe models? Is it illuminated or not?

This switch setting is adjustable when brewing a ½ carafe (16-20oz mug) or full carafe of coffee, allowing you to control holding temp within the range of 175°F – 185°F. We recommend setting at low for ½ carafe brewing or for drinking “black” coffee and high for a full carafe or for “cream” coffee drinkers. (Note: Model K-741-AO (Homeline) does not have a dual-phase hot-plate switch, and holds about 180°F on the hot-plate element and will not burn your coffee!)
The hot-plate switch is NOT illuminated on current models, however on older models it was. The on/off power switch is still illuminated.

Why do Thermal Carafe models come with two lids?

Moccamaster Thermal Carafe model brewers come with 2 different lids.
1. The Brew-Thru Lid is engineered to allow coffee to drip into the carafe during the brew cycle and minimize heat loss while holding the coffee. The lid is also a pour-thru lid, so there isn’t a need to take it off or loosen it to pour coffee. For this reason, if properly used, your coffee will stay warm for up to 1 hour (although coffee experts suggest consumption within 30 minutes).
2. The Travel Lid is for keeping coffee hot for longer than an hour or for traveling with your carafe. The travel lid is also a pour-thru lid, but you’ll need to loosen it by ¼ to ½ a turn to expose the pour spout within the lid. After pouring, tighten the lid to keep the coffee warm and to make it spill proof.

If the Grand brewer brew-basket is not flexible in volume, can I make a smaller quantity by using a different brew-basket?

Yes, the CD Grand (glass carafe) model is easily altered by substituting the brew-basket (use the 1.25L manual-adjust drip-stop brew-basket with a round base, and use the correct water/formula ratio previously noted). You’ll need to source the following parts from Technivorm Moccamaster USA to accomplish this flexible option: Brew-basket: #13192, brew-basket lid: #13114, 9-hole outlet-arm: # 53054 and #4 filters: 85022
You could accomplish the same satisfactory results with the CDT Grand Thermal Carafe brewer if you pre-heat the cool stainless steel thermal carafe. When brewing partial quantities into a stainless steel thermal carafe you must pre-heat the carafe as to not lose coffee heat to warming the carafe.

What are the settings on the manual-adjust drip-stop brew-basket for?

The settings are: Open, Partial Open, and Closed.
Open is for normal brewing.
Partial Open slows down the coffee/water saturation time (drain process), which allows the coffee to steep longer for partial carafe coffee brewing or tea brewing.
Closed is meant for emptying the basket at the end of the brew cycle and NOT for pause and pour. Since the entire cycle only takes less than 6 minutes, we recommend waiting until the full cycle is complete to assure perfect coffee in every cup.

Is the foot-plate optional for the thermal carafe brewers?

For the automatic, drip-stop brew-basket KBGT/CDGT models the base-plate is not optional and must be used. The minimal extra height of the carafe is necessary to assure sufficient contact with the brew-basket drip-stop lever. If not used this can cause a very slow drain of the brew-basket and potentially overflow the brew-basket or even slowly drizzle down the side of the bracket causing the tower to appear to be leaking.
For the manual-adjust, drip-stop brew-basket models the base-plate is not necessary. This includes: KBT, KBTS, CDT, CDT Grand.

Why doesn’t the Grand brewer have graduated liter/cup markings on the cool water reservoir?

The Grand models were designed for small offices or the entertaining home, and designed to produce 1.8 liters of coffee per brew cycle. The flat-bottom, commercial type, brew-basket (110mm filter), needs sufficient coffee bed depth and water ratio to assure essential saturation and extraction meeting ECBC/SCA quality standards. For this reason, a full carafe should be produced when using the flat-bottom brew-basket.

Are there programmable timer features?

No. Moccamaster does not recommend leaving water in the reservoir or coffee in the brew-basket overnight because water becomes flat and coffee stale. Good coffee starts with fresh water and fresh coffee. It’s the first thing you look forward to in the morning, why not make it the best it can be? After all, it only takes 6-minutes to brew a full carafe of coffee.


Why is there water remaining in my brewer once the brew cycle is complete?

Moccamaster doesn’t use pumps to push the water through, it’s the natural process for this type of brewing system. Therefore, it is normal to have a few ounces of water remain in the boiling element. This is fine if you brew every few days. If you brew every week or two, we recommend emptying the remaining small amount of water by removing the parts and turning your brewer upside down over the sink.

Why are there so many parts?

Removable parts are essential for long-term maintenance and replacement.

What is the return policy?

All warranty claims should be directed to Technivorm Moccamaster USA at or 855.662.2200 customer service. Retail stores may accept dissatisfied returns for up to 30-days. All warranty claims after 30-days must be directed to Technivorm Moccamaster USA. (NOTE: you must keep your original Proof-of-Purchase for any warranty claims.)

Why descale and clean? What is the recommended timetable?

Moccamaster brewers should last a lifetime, when cleaned and descaled properly! As with ALL coffee brewers, your Moccamaster should be descaled (removal of calcium/lime deposits/build-up) in order to maintain proper performance and great tasting coffee.
For descaling and cleaning your brewer we recommend Urnex brands:
Full Circle Descaler
Full Circle Cleaner
Dezcal Descaler
Cleancaf Cleaner
Other brands may harm the copper boiling element, potentially resulting in an unpleasant metallic after-taste. We don’t recommend vinegar, because it rarely descales sufficiently and may leave an after-taste.
Moccamaster recommends you clean and descale your brewer every 100 brew cycles. This can be easily remembered when you buy a box of 100ct filters.

Do you sell accessories and replacement parts separately?

Yes, available at Moccamaster or at many fine retailers.

Is repair service available?

Yes. Technivorm Moccamaster USA will repair Moccamaster Coffee Brewers for life, even after the 5-year warranty period has ended, for a minimal fee. The corporate repair facility is located in Portland, Oregon, and provides quick repair service. Contact the customer service department for assistance at or 855.662.2200


Get started
  1. Take out of box
  2. Attach water outlet arm
  3. Place brew basket
  4. Add water
  5. Place water reservoir lid
  6. Put filter in brew-basket and wet the filter
  7. Add coffee grinds to the filter in the brew-basket
  8. Place brew-basket lid
  9. Plug in
  10. Set switch to brew
Additional information
  1. If glass carafe model, then select the Hi/Lo holding temperature
  2. If manual adjust drip-stop switch brew-basket, then set proper water flow setting
  3. If KBGT or CDGT models make sure to use baseplate so the top of the thermal carafe properly engages the auto-drip stop lever in the brew-basket
  4. If thermal carafe models, then make sure the carafe completely engages the white switch
  5. If thermal carafe model, then make sure to use the brew-thru lid during brewing - simply brew and pour – do not remove lid

Taking Care of your Moccamaster

Basic Cleaning

  1. Clean the brewer regularly with a moist cloth and wipe dry. After each use, hand wash the carafe and brew-basket with mild detergent. Rinse thoroughly. Carafe is not dishwasher safe. Thermal carafe coffee oil stains may be removed by placing a small amount of dishwasher detergent and water in carafe and allowing it to soak overnight or we recommend the use of Cleancaf® by Urnex®.
  2. Do not submerge brewer in liquid.

Anti-frost protection and extended storage guidelines

  1. Turn the brewer off and remove the electrical plug from outlet.
  2. Remove the 9-hole outlet arm.
  3. Empty any remaining water within brewer by holding it upside down over the sink.

Descaling your brewer

Moccamaster brewers should last a lifetime when cleaned and descaled properly! As with ALL coffee brewers, your Moccamaster should be descaled (removal of calcium/lime deposits/build-up) in order to maintain proper performance and great tasting coffee.
For descaling and cleaning your brewer we recommend Urnex brands:
Dezcal Descaler
Cleancaf Cleaner
Other brands may harm the copper boiling element, potentially resulting in an unpleasant metallic after-taste. We don’t recommend vinegar because it rarely descales sufficiently and may leave an after-taste.
Moccamaster recommends you clean and descale your brewer every 100 brew cycles. This can be easily remembered when you buy a box of 100ct filters.