7 cm Lab Filter Paper, Standard Qualitative Grade 4 - ZENPORE Fast Flow 70 mm (100 Discs)

usati per filtrare il nocino. fanno il loro dovere

I originally tried the 9 cm medium flow (blue/white packaging) as a replacement filter in my old Krupps Moka brew ….. they worked but the flow rate was less than half that of the discontinued Melita No 1 disc filters and I was concerned about damaging the coffee maker over time because it pressure filters the coffee.I recently got these, the 9 cm fast flow filters and they are perfect! The rate is nearly the same as the discontinued Melita filter!Thank you!!

Easy to use worked as described

It works okay, especially for small amounts of fluid, but the pores get clogged fairly quickly and the filtration process slows way down if there are larger amounts of fluid. For example, we were recently filtering a slurry of dried green peas from a blender in order to extract DNA. We only have 1 1/2 hours for lab, so the filtration step was definitely a bottleneck for time. We ended up using coffee filters to speed up the process. Maybe a fast filter paper for the first go-through and then this product for a second filtration? I still kinda wish I had gotten larger diameter and faster filter paper for high school labs. This product is probably better for more meticulous science or a fluid that doesn't have many solid particles in it.

I didn't expect much when I bought these cheap filters but was surprised to find they were firm and performed as advertised, unlike a lot of Chinese rebrands. Good value for the money. I'll definitely buy again.