HOW TO READ PARAMETER GUIDES

PARAMETER

WHAT IS A PARAMETER GUIDE?

A parameter guide is a brewing recipe to achieve the optimal level of extraction, and most desirable sensory experience. Each coffee has its own parameters which describe the steps and factors to making a delicious drip, espresso or immersion brew; ideal for intermediate-level coffee enthusiasts who want to refine their skills or graduate from standard brew guides.

Our parameter guides are developed by our Roasters and/or Coffee Ambassadors and published approximately two weeks after each coffee is released. Much like a cooking recipe, parameter guides are a starting point to steer you in the right direction. You may find the need to make small adjustments to dial in each coffee to your preference.

 
PARAMETER GUIDE DEFINITIONS

BREW RATIO: Parts ground coffee or ‘dry dose’ to parts brew water or ‘wet dose’ 

STRENGTH TDS: Brew strength or ‘body’ measured by Total Dissolved Solids

EXT. YIELD: Percentage of solubles (ie. coffee grinds) dissolved during brewing

SENSORY DESCRIPTIONS (right): Our Roasters’ explanation of the ideal sensory experience for this coffee. Compare with your own results and make adjustments as needed.

DRIP

 

DRIP PARAMETERS

HOW TO CALCULATE DRIP BREW RATIO

Brew ratio lets you follow a recipe for any brew size using a simple calculation: 

Brew Water (L) x Brew Ratio (g/L) = Dry Dose (g)

For example, if you are using the Heritage drip brew ratio of 57.8 g/L and 320g of brew water (as recommended in our pourover recipe), we can calculate the adjusted dry dose as follows:

320g = 0.32 L

0.32 L x 57.8 g/L = 18.5g 

The adjusted brew ratio for Heritage is 18.5g of ground coffee to 320g of brew water.

POUROVER
STRENGTH + EXTRACTION

So you’ve followed the brew ratio and prepared your coffee, now it’s time to taste! Consider the Strength TDS and Extraction Yield targets on your parameter guide so you can make adjustments, or ‘dial in,’ your next brew to get even closer to perfection.

 

POUROVER

 

UNDERSTANDING STRENGTH TDS

 Below 1.25 % = Light Body

 1.25 - 1.35 % = Medium Body

 Above 1.35% = Heavy Body

UNDERSTANDING EXTRACTION YIELD

18-19% = Light Extraction

19-20% = Moderate Extraction

20-22% = High Extraction

Using the Heritage parameter guide example, your coffee should have a medium body and higher extraction. If your coffee tastes weak, you may need to increase extraction. If your coffee has a heavy body, you may need to decrease brew strength. If your coffee tastes just right, sit back and enjoy!


To learn more about the key variables for fine-tuning your recipe, check our Extraction Guides or sign up for our Virtual Brew Methods Classes.

HERITAGE
 
PARAMETER GUIDE DEFINITIONS

DRY DOSE: Weight of ground coffee

WET DOSE: Weight of extracted espresso

BREW RATIO: The value that is multiplied by the dry dose to confirm the wet dose

DURATION: Total extraction time from start to finish of the espresso shot

STRENGTH TDSBrew strength or ‘body’ measured by Total Dissolved Solids

EXT. YIELD: Percentage of solubles (ie. coffee grinds) dissolved during brewing

REST PERIOD: Amount of time beans should rest, from the roast date, before brewing

SENSORY DESCRIPTIONS (right): Our Roasters’ explanation of the ideal sensory experience for this coffee. Compare with your own results and make adjustments as needed.

ESPRESSO

 

ESPRESSO PARAMETERS

HOW TO CALCULATE ESPRESSO BREW RATIO

To determine brew ratio for espresso we using this simple calculation: 

Wet Dose (g) ÷ Dry Dose (g) = Brew Ratio

For example, if you are using the Heritage espresso brew ratio of 36.5g wet dose and 18g dry dose, we can calculate the brew ratio as follows: 36.5g ÷ 18g = 2.0 brew ratio


You can also use the brew ratio to calculate the target wet dose for any dry dose weight. For example, if you are using a 15g basket, simply calculate the wet dose as follows: 15g x 2.0 = 30g wet dose

ESPRESSO
STRENGTH + EXTRACTION

Now that you’ve followed the espresso parameters, it’s time to taste! Consider the Strength TDS and Extraction Yield targets on your parameter guide so you can make adjustments, or ‘dial in,’ your next brew to get even closer to perfection.

 

ESPRESSO

 

UNDERSTANDING STRENGTH TDS

 8-9% = Light Body

 9-10% = Medium Body

 10-12% = Heavy Body

UNDERSTANDING EXTRACTION YIELD

18-19% = Light Extraction

19-20% = Moderate Extraction

20-22% = High Extraction

Using the Heritage parameter guide example, your coffee should have a medium body and moderate extraction. If your coffee tastes weak, you may need to increase extraction. If your coffee has a heavy body, you may need to decrease brew strength. If your coffee tastes just right, sit back and enjoy!


To learn more about the key variables for fine-tuning your recipe, check our Espresso Extraction Wheel.

HERITAGE
 
PARAMETER GUIDE DEFINITIONS

BREW RATIO: Parts ground coffee or ‘dry dose’ to parts brew water or ‘wet dose’ 

STRENGTH TDS: Brew strength or ‘body’ measured by Total Dissolved Solids

EXT. YIELD: Percentage of solubles (ie. coffee grinds) dissolved during brewing

SENSORY DESCRIPTIONS (right): Our Roasters’ explanation of the ideal sensory experience for this coffee. Compare with your own results and make adjustments as needed.

IMMERSION

 

IMMERSION PARAMETERS

HOW TO CALCULATE IMMERSION BREW RATIO

Brew ratio lets you follow a recipe for any brew size using a simple calculation:

Brew Water (L) x Brew Ratio (g/L) = Dry Dose (g)

For example, if you are using the Heritage immersion brew ratio of 64 g/L and 248g of brew water (as recommended in our AeroPress recipe), we can calculate the adjusted dry dose as follows:

248g = 0.248 L

0.248 L x 64 g/L = 14.6 g 

The adjusted brew ratio for Heritage is 14.6g of ground coffee to 248g of brew water.

IMMERSION
STRENGTH + EXTRACTION

So you’ve followed the brew ratio and prepared your coffee, now it’s time to taste! Consider the Strength TDS and Extraction Yield targets on your parameter guide so you can make adjustments, or ‘dial in,’ your next brew to get even closer to perfection.

 

IMMERSION

 

UNDERSTANDING STRENGTH TDS

 Below 1.2% = Light Body

 1.2 - 1.3% = Medium Body

 Above 1.3% = Heavy Body

UNDERSTANDING EXTRACTION YIELD

18-19% = Light Extraction

19-20% = Moderate Extraction

20-22% = High Extraction

Using the Heritage parameter guide example, your coffee should have a light-medium body and moderate extraction. If your coffee tastes bitter, you may need to decrease extraction. If your coffee has a heavy body, you may need to decrease brew strength. If your coffee tastes just right, sit back and enjoy!


To learn more about the key variables for fine-tuning your recipe, check our Extraction Guides or sign up for our Virtual Brew Methods Classes.

HERITAGE
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