Workfloor Coffee Lab

  How about filter basket?

  

  The types of filter basket 

  1. IMS filter basket.



   
     


  2. VST filter basket. 

   

   How can we choose properly depending on 
   the choices of our coffee bean?
     That filter baskets' differences are one is the diameter of 
   lower section and the other one is the number of filter holes.

   IMS filter basket's lower section is narrow relatively 
   and the number of filter holes is also less. 

   In other hand, 
  
   VST  filter basket's lower section and upper section are parallel
   that means like lower section is wider than IMS's
   and the number of filter holes are more. 

   What the difference?

   IMS filter basket has less holes that means more pressure 
   could be happened than VST filter basket.

   On the other hand, VST filter basket has more holes and lower 
   section of that also wider. So if the grind size is coarse, 
   under-extraction could be happened easily.


   Filter basket guide sorted by level of roasting.

   Dark Roasted coffee beans are easy to be extracted. 
   Because Dark Roasted beans' tissues are already 
   opened sufficiently.

   So, It would be better to grind beans coarse than fine to avoid 
   over-extraction.

   In this case, To use VST basket could accelerate over-extraction.  
   IMS or normal basket should be better.

   In the other hand, 

   In the light roasted beans' tissues tend to be strong and hard
   That means like if we grind beans coarsely, 
   It's likely to be under-extraction. 

   In this case, We need to grind beans finer. It means that
   If we use IMS or Normal basket, the extraction could be 
   not smooth.

   VST filter basket should be better to grind beans finer and
   keep extraction time properly at the same time.