We’ve gotten the 22g and the 18g VST precision baskets and also our single portafilter was cut open by a friend (Thanks Thomas!). We’ve worked with these baskets and other baristas have been using this around town.
VST baskets are strongly advocated by most speciality coffee peeps as it helps extract more coffee (some claim with a certain fixed technique or rather adjustment of technique.) and gives an overall, more even extraction. This allows you to pull the shot longer and grind finer than usual. These results thanks to the baskets design and surface area of holes in it and also, the even-ness of the holes.
This post is not an endorsement but just a sharing of results. There were even times in our old work place where we would switch back to stock basket for a more balanced shot. Sometimes, the VST baskets can be too ‘honest’ in the flavours of the coffee, especially if its too fresh. Generally, we prefer the results we get from it with our prosumer/small cafe/pop-up setup of our R58 Rocket Espresso and a Baratza Forte.
We’re currently using the 22g baskets and splitting the shots for all our drinks with the recipe of 21-23g of coffee, 90-94c with the shot time of anywhere from 25 to 35 seconds with the total shot volume of 35-40ml. We’re still in the process of fine tuning in and understanding our grinder, our espresso machine and the coffee as it ages. So, forgive us for the huge range of parameters.
We also loaned the 18g basket out to our friends at cafes around town. One got more sweetness out of it but found it lacked body. Another liked how they were getting more focused yet clearer flavours, ‘cleaner’ cups of coffee with less sediment coming through. Machines like the Kees come with the VST baskets by default, even.
The baskets are definitely something to check out if your cafe operation is serious about your coffee. Come by and have a chat with us 🙂
Five Senses – Pro-VST – Measure all parameters for consistency. http://www.fivesenses.com.au/blog/2013/02/06/andy-vst-baskets
Home Baristas’ Take – http://www.home-barista.com/reviews/how-filter-baskets-affect-espresso-taste-and-barista-technique-t18743.html
Coffee geek – Why : Surface area vs Exit Area and Even Holes. However, vary technique. http://coffeegeek.com/opinions/markprince/04-29-2011
Reverse Engineering Espresso : http://www.jimseven.com/2014/04/30/reverse-engineering-espresso/