Adjusting the grinder is one of the key important elements to ensure we get the right quality from the TopBrewer, by hitting the right extraction time a brew. Adjusting the grinder in this article, center around Espresso brewing, but could also be used for Filter coffee.
Troubleshooting - or issues that could result in needing grinding adjust
if the espresso is running very slowly - Around more then 35 seconds - the grinder might be set to fine and need to adjusted coarser.
Or if the extraction is running too slow, at around 10-15 seconds or below that - the grinder need to be set finer.
Important Note: The grinder adjusts value is an index number. All grinders are individual. A value from one grinder to another, or one machine to another, is not directly comparable. Each machine is individual and the number is just a reference for the machine itself, and not the user adjusting. So please ignore that.
Coarser = faster pour = less extraction
Finer = slower pour = more extraction
You have to imagine that the key driver is the time in which the water is in contact with the grounds.
A way to control that is the particle size of the grounds.
Grinder 1 and 2
TopBrewer Pro's have 2 grinders. Compact models have 1.
|Grinder 1||Left grinder||Primary grinder|
|Grinder 2||Right Grinder||Not used|
Greater number = finer*
Lower number = coarser
*You can maximum adjust finer 10 steps in one go.
Desired extraction time
A good target for Espresso extraction, is around 20-25 seconds. If it's at 30 seconds its okay, but can become problematic as adjusting the grinder that fine can become a problem, if the coffee is suddenly is to fresh. This is more complex to get into, but bottom line is the more fresh the coffee is - the longer the extraction time will be.
How to check the current extraction time on a TopBrewer?
You can verify the extraction time, by triple-clicking with your finger on the brewing screen (the spinning wheel on iPad while machine is brewing espresso) on iPad/iPhone, and a timer will appear. This timer gives the exact time, and you can refer to that number for adjusting the grinder finer or coarser.
Example: If timer states 15 seconds, you need to set the grinder finer, and therefore have to press the arrow up ↑ when adjusting the grinder.
How to adjust the grinder
Adjusting the grinder on all TopBrewer's is done the following way:
- ↑ on the keypad until display shows ADJUST
- Hit Yes
- ↑ until display shows GRINDER
- Hit Yes
- Grinder 1 is shown
- Toggle ↑ or ↓ to find Grinder 1 or 2
- Hit Yes on the grinder you would like to adjust
- ↑ or ↓ to adjust.
- ↑ = finer (runs slower)
- ↓ = coarser (runs faster)
- Hit Yes to store the new setting. The grinder is now adjusting.
- Test 2-3 drinks and note final result. Repeat process if necessary.
There's a lot to say about adjusting a machine correctly. There's a lot of variables. More so, than I can cover here in this article.
If you like to learn much more, you will have to read the adjustment white paper. Download it below.
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