Welcome to ManualsDock! Read Millions of manuals for free.

Get 20% off and boost your website's speed with Hostinger Cloud Hosting!

Breville BDC450 Precision Brewer Drip Coffee Machine Instruction Guide


breville LOGO

Breville BDC450 Precision Brewer Drip Coffee Machine

Breville BDC450 Precision Brewer Drip Coffee Machine



  • Carefully read all instructions before operating the appliance and save them for future reference.
  • Remove and safely discard any packaging material, plastic power plug cover, and any removable labels before using the appliance.
  • If the appliance is to be:
  • left unattended
  • cleaned
  • moved
  • assembled; or
  • stored unplug the unit from the power outlet.
  • Always operate the appliance on a stable and heat-resistant surface.
  • Do not place the appliance on or near a hot gas burner, electric element, or where it could touch a heated oven.
  • Ensure the unit has at least 4 inches (10cm) of clearance from all side panels.
  • Do not operate the appliance without water in the water tank. Use only cold, preferably filtered water. Do not fill the appliance with any other liquids for brewing operations.
  • Ensure the supplied mesh basket filter or a paper filter (8-12 cup, flat base basket style with ~ 3¼”/8.25cm base) is placed in the coffee basket before using the appliance. Do not use the mesh basket filter in conjunction with a paper filter.
  • Before starting a brew cycle:
  • Check that the carafe drip stop moves up and down freely.
  • Empty the carafe and securely lock the carafe lid in place.
  • Insert and seat the carafe under the drip stop.
  • Ensure the filter basket is empty and properly fit in place.
  • During a brew cycle:
  • Do not remove the carafe or remove the filter basket while the unit is in a brew cycle. Failure to follow the above may lead to scalding or serious injury.
  • Some surfaces may be hot, use caution when touching or lifting the unit or accessories.
  • Use only the carafe handle when lifting the carafe.
  • The carafe is designed for use with this appliance only. It must never be used on a range top or in a microwave.
  • Scalding may occur if the carafe lid or basket is removed during the brewing cycle.
  • Risk of injury. Proper installation/removal of the basket is required to reduce the risk of splashing hot  water
  • Always ensure the carafe lid is securely locked in place onto the carafe before pouring.
  • Do not use the carafe with a cracked, loose, weakened, or damaged handle.
  • Do not use the filter basket with a cracked, loose, weakened,d or damaged handle.
  • Do not touch hot surfaces. Use the handle for lifting and carrying the carafe.
  • Always wait until the machine has cooled before removing the brew basket.
  • Do not set a hot carafe on a wet, cold, or heat-sensitive surface.
  • Always switch the appliance off by removing the power plug from the power outlet before attempting to move the appliance, when the appliance is not in use and before cleaning and storing. Allow to cool before putting on or taking off parts, and before cleaning the appliance.
  • Do not use harsh or abrasive materials when cleaning any part of the appliance such as steel wool or scouring pads.
  • The use of attachments not sold or recommended by Breville may cause fire, electric shock, or injuries.
  • Scalding may occur if the basket is removed during the brewing cycle.
  • Proper installation of filter basket, showerhead seal, and showerhead locking ring is required to reduce the risk of splashing of hot water.
  • To prevent damage to the appliance do not use alkaline cleaning agents when cleaning, use a soft cloth and a mild detergent.
  • The heating element surface is subject to residual heat after use.
  • The appliance shall not be laced in a cabinet when in use.
  • Fully unwind the cord before use.
  • To protect against fire, electric shock, and injury to persons, do not immerse a cord, plug, or appliance in water or any other liquid.
  • Do not let the cord hang over the edge of a bench or table, touch hot surfaces, or become knotted.
  • Do not leave the appliance unattended when in use.
  • Children should be supervised to ensure they do not play with the appliance.
  • This appliance is recommended for household use only. Do not use this appliance for anything other than its intended use. Do not use it in moving vehicles or boats. Do not use outdoors.
  • It is recommended to regularly inspect the appliance. Do not use the appliance if the power supply cord, power plug, or appliance becomes damaged in any way. Immediately stop using the unit and call Breville  Consumer Support.
  • Close supervision is necessary when the appliance is used by or near children.
  • We recommend using cold, filtered water. We do not recommend the use of de-mineralized or distilled water as this may affect the taste of brewed coffee.


  • Your Breville appliance is fitted with a short power cord to reduce the risk of personal injury or property damage resulting from pulling, tripping, or becoming entangled with a longer cord. Longer detachable power cords or extension cords are available and may be used if care is exercised.
  • If an extension cord is used, (1)the marked electrical rating of the cord set or extension cord should be at least as great as the electrical rating of the appliance, (2) the cord should be arranged so that it will not drape over the counter-top or table where it can be pulled on by children or tripped over unintentionally and (3) the extension cord must include a 3-prong grounding plug
  • This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety.
  • This appliance can be used by children aged 8 years and above if they have been given supervision or instruction concerning the use of the appliance in a safe way and if they understand the hazards involved. Cleaning and user maintenance shall not be made by children unless they are older than 8 and supervised. Keep the appliance and its cord out of reach of children aged less than 8 years.

This appliance has a three-wire grounded plug. To reduce the risk of electric shock, this plug will fit in a polarized outlet only one way. If the plug does not fit properly into the outlet, contact a qualified electrician. Do not use an adaptor or modify the plug in any way. Do not connect the appliance to an external switch or device (such as a timer, monitor, or remote circuit) that can be switched on and off.

Your Breville appliance comes with a unique Assist®Plug, conveniently designed with a finger hole to ease removal from the power outlet.

(Applicable to California residents only). This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.


Breville BDC450 Precision Brewer Drip Coffee Machine 1

  • Tank lid
  • Water tank
  • LCD
  • SELECT dial
  • START|CANCEL button
  • AUTO START button
  • Brew basket
  • Showerhead
  • Showerhead ring
  • Drip stop lever
  • Carafe lid
  • Carafe

Breville BDC450 Precision Brewer Drip Coffee Machine 2

  • Cone filter basket insert
  • Mesh basket filter
  • Brew basket
  • Breville coffee measuring scoop
  • Flat bottom basket filter paper pack (10 pieces)
  • Water hardness test strip (see page 11 for directions)


Your Breville Precision Brewer has been designed to make coffee of the highest quality, just the way you like it, no matter what style of coffee you enjoy.
Brew up to 12 cups (60oz) as fast as the  brewer can deliver the water in the tank
This model has been certified by the SCA (Specialty Coffee Association) to meet their rigorous technical requirements using the Cone Filter Basket and water volumes of 1.0L & 1.2L together with a brew ratio of 55g of coffee to 1.0L of water.
Brew settings are automatically adjusted so you get a stronger cup of coffee.
for strong coffee, increase the amount of ground coffee you normally use.
Over Ice:
Brew up to 4 cups (20oz) of stronger coffee that tastes great when poured over ice and garnished any way you like.
Brew up to 12 cups (60oz) having total control over all the variables, brew water temperature, bloom time, and after delivery speed, so you get coffee just the way you like it.
Cold Brew:
Brew up to 20oz of Cold Brew coffee with the flexibility to adjust the steeping time between 0-24 hours and have the coffee automatically delivered to your favorite vessel.

The SCA recognizes home brewers that meet their longstanding rigorous technical requirements. These requirements are based on decades of industry knowledge and research by the Coffee Brewing Center. All SCA Certified Home Brewers have met these requirements, which are based generally on proper water temperature, brewing time, and ability to brew within the SCA Golden Cup recommendations.

If a brewer passes all of the tests in the certification procedure, as conducted by the SCA, that brewer will be eligible to be recognized as an exemplary home brewer and join the short list of SCACertified Homebrewers. The Breville Precision Brewer has met these SCA requirements when using the “Gold” setting and the Cone Filter basket.

Unpack all parts and accessories before removing and safely discarding all packaging material and promotional labels. Ensure the power cord is unplugged from the power outlet. Wipe the exterior stainless steel housing with a soft, damp cloth. Wash the lid, brew basket, cone filter insert, mesh basket filter, and carafe in warm, soapy water and a soft cloth. Do not use abrasive cleaners, pads, or cloths which can scratch the surface. Rinse and dry thoroughly. Press the carafe drip stop ensuring it can freely move up and down.

When first turned on, the machine will show ‘HArd’ on the LCD, asking you water hardness level. Press the SELECT dial once. Dip the water hardness test strip into the filled water tank for 1 second, remove and wait for 1 minute to reveal the result. Rotate the SELECT dial and press the dial to select the level according to the number of dots shown on the strip. To reset water hardness, please refer to FACTORY RESET (page 18).


  1. Ensure that the empty coffee basket and empty carafe (with assembled lid) are inserted into the machine.
  2. Fill the water tank with fresh cold water to the MAX mark on the water tank. Plug into a power outlet and press the START |CANCEL button to turn the machine on. Rotate the SELECT dial to FAST. Press the START|CANCEL button. The machine will dispense all the water from the tank, through the system & into the empty carafe.
  3. After flushing, empty the basket and carafe.


Ensure the brew basket is clean and the drip stop seal in the bottom of the basket is clean and free of coffee particles.

  1. Select the correct basket & filter for the amount of coffee you’re making. When brewing between 2 and 8 cups, we recommend you use the Cone-shaped filter basket insert with a paper filter (A cone paper filter is not included). When brewing more than 8 cups, use a mesh basket filter or flat-bottom brew basket with a large paper filter.
  2. The LCD will display the basket setting – “Basket” or “Cone”. To change the basket type, rotate the SELECT dial to Settings & press the dial. Rotate the SELECT dial to the basket type, and press the SELECT dial to set.
  3. Fill the water tank with fresh cold water up to the MAX marking on the water tank.
  4. For the very best-tasting coffee, we recommend using freshly roasted whole-bean coffee and grinding with a burr grinder directly before you brew. The grind should be medium/coarse, never use the coffee grounds for espresso as your coffee basket may overflow.
  5. Grind enough coffee beans for the volume you’re making. For a full 60oz carafe,  we recommend 3.5oz (99g) of coffee, approximately 12 level Breville measuring scoops. Roughly 1 scoop for every 5oz. Refer coffee/water ratio chart on page 16.
  6. Insert the correct filter paper, cone or flat bottom, or mesh basket, into the brew basket, then, add your ground coffee. Insert the brew basket into the machine.

Never use both mesh basket filter and paper filter at the same time.

  • The machine will remind you to insert either a cup or carafe where applicable
  • Heating: the heating system is being pre-heated to the optimal temperature
  • Blooming: the bloom phase of preparation is in progress
  • Brewing: brew water at the correct/ selected temperature is being delivered to the ground coffee
  • Bloom Time: Coffee bloom occurs when hot water hits the ground coffee. This setting allows you to adjust how long the bloom time lasts. We recommend 30-60 seconds. During this time the brewing cycle pauses to allow coffee to naturally bloom. See ‘TIPS’ for more about Bloom Time.
  • Brewing Temp: You can adjust the temperature of the brew water being delivered to the ground coffee to suit your favorite coffee. See “TIPS” for more about setting the brew water temperature.
  • Flow Rate: You can adjust brewing time to control contact time by adjusting the water delivery speed. Choose between Slow, Medium, and Fast (default).
  • Pour Over: If you are using the Pour Over Adapter, this must be turned on. The Adapter is sold separately at breville.com.
  • OVER ICE: This is to make stronger coffee for ice coffee.
  • Fill the water tank with the amount of water you want to brew up to 20oz line and start brewing. After brewing, pour over ice. See ‘TIPS’ for details.
  • COLD BREW: Cold Brew coffee is brewed differently from traditional coffee. It uses cold, not hot water. Your brewer uses the “Full Immersion” method of brewing cold brew which steeps the water and coffee together over an extended duration – typically between 4 – 14 hours. This method creates an intense smooth coffee with little bitterness. Brew ratios are also different, and much higher than normal. Breville recommends a brew ratio 2-3 times higher than average, approximately 3 Breville scoops to every 5oz of water.
  • See ‘TIPS’ for a step-by-step guide to brewing Cold Brew.
  • Brew time is adjustable.


  1. DO NOT fill the water tank more than the SINGLE CUP line or the volume of the cup used to receive the coffee. It will overflow as the machine brews until the water tank becomes empty.
  2. Place your empty cup underneath the brew basket outlet.
  3. We recommend using a cone filter basket insert for single cups. It ensures proper contact between the brewing water and the  ground coffee
  4. To change the basket type, rotate the SELECT dial to Settings and press to enter the Settings mode, and select “Basket Type”.
  5. Rotate the dial to select “Cone”, and press the dial to select. “Cone” will be displayed on the LCD.
  6. Insert the Cone filter basket into the brew basket. Use the alignment marks as a guide.
  7. Place a cone-shaped paper filter into the cone filter basket.
  8. Grind the correct amount ofwhole-beann coffee for the amount you are brewing. 1 level Breville scoop of ground coffee is suitable for 5oz (150ml) of water.
  9. Select the desired brewing mode, Fast, Gold, MyBre,w, or Strong.
  10. Press START|CANCEL to begin brewing.


  • Pre-ground coffee is convenient, but will never taste as good as coffee ground right before you brew. We recommend investing in a quality burr grinder so you can grind fresh whole-bean coffee right before you brew and enjoy superior-tasting coffee.
  • The grind will affect the rate at which the water flows through the coffee in the coffee basket and therefore the taste of the coffee. If the grind is too fine the water will not flow through the coffee and may clog or overflow the coffee basket. It may pass through the mesh basket filter leaving sediment in the cup or carafe. The resulting coffee will be over-extracted, too dark, and bitter. If the grind is too coarse the water will flow through the coffee too quickly. This will result in an under-extracted coffee lacking in flavor.
  • Always use a “drip filter grind” suitable for use with drip coffee machine. Never use “Espresso grind” as the finer grind size may cause the coffee basket to block and will be over-extracted.

We recommend 1 level Breville scoop of coffee grounds per 5oz (150ml) cup of water. Adjust the amount according to your taste. The maximum capacity for pre-ground coffee is 12-level Breville scoops. Exceeding this amount may cause the coffee basket to overflow.

Breville BDC450 Precision Brewer Drip Coffee Machine 3Breville BDC450 Precision Brewer Drip Coffee Machine 3

Care & Cleaning

After each use, empty the carafe. Do not let brewed coffee stand overnight as this can cause the carafe to stain. Rinse the carafe and carafe lid under warm running water. For a deeper clean, we recommend regularly washing the carafe in warm, soapy water using a soft-bristled brush. Do not use abrasive cleansers, pads, or cloths which can scratch the surface. Rinse and dry thoroughly.


Breville BDC450 Precision Brewer Drip Coffee Machine 4

Breville BDC450 Precision Brewer Drip Coffee Machine 5


Leave a Comment