MATOW Reusable Silicone Boot and Shoe Covers Size:Large 8.5 - 12.5 US these clumps can cause uneven

these clumps can cause uneven pockets or gaps in the tamped coffee bed

will result in much more consistent dosing weights

which breaks up clumps that can be left behind from your grinder

This is not a defect of the portafilter itself

MATOW Reusable Silicone Boot and Shoe Covers Size:Large 8.5 - 12.5 US these clumps can cause unevenAbout This Item Durable & Non Slip This shoe & boot cover made of 100% premium non toxic silicone rubber, which ensures durability for use and environmental protection. Shoe cover is also equipped with particular tread mechanism for preventing sole slipping. Multi Resistance & Use Great use for this shoe cover is avoiding wet shoes or foot in rainy, slush, or snow days, which also can protect them against salt & dirt. Great for motorcycle riding,