VST - precision filter baskets
VST baskets have, precise, consistent, hole - size, area & shape. they are perfectly round & have the same inner diameter.
You can use the largest possible diameter tamp & be certain it will fit in each basket without getting stuck in the basket. Each one is checked on an individual basis using a specially designed filter imaging system.
We recommend you use these to get the most out of your coffee. we use these on our bar to better achieve the consistent results we want out of our espresso's.