Q & A

Frequently Asked Questions

Vertical-shape mesh allows hot water to flow faster than other filters. Please adjust the amount of hot water to achieve the desired taste.

There may be some coffee machines and brewers in which this filter does not fit as it has a unique shape.

Vertical-shape mesh is big enough for coffee grounds to be extracted through it but it doesn’t affect the quality of coffee.

While paper filters absorb coffee oil, the gold filter allows coffee oil to be extracted as well. This is why there is coffee oil floating on the surface of coffee in a cup; therefore, taste and aroma are different.

This product is not microwave proof.

It is possible to use for the double wall mug. However, when used on the gold filter, it is possible for damage to occur on the black plastic section. Please read the notes on the bleaching agent’s bottle and use as directed.

Please read “How to brew a cup of coffee by using Cores Gold Filter” in the section of “Cores Gold Filter C245・C285”.

Please read the user manual or the section shown below to learn the amount of coffee and hot water required. Product information for “Cores Gold Filter C240・C280”

While paper filters absorb coffee oil, the gold filter allows coffee oil to be extracted as well. This is why there is coffee oil floating on the surface of coffee in a cup. It is important for enjoying unique characteristics and flavor of coffee to directly extract coffee oil.

Vertical-shape mesh allows hot water to flow through quickly. Please read “How to brew a cup of coffee by using Cores Gold Filter” in the section of “Cores Gold Filter C245・C285”.

In comparison to other filters (e.g. paper filter), vertical-shape mesh is big enough for coffee grounds to be extracted through it.You may choose not to consume the drink in its entirely, instead leaving the coffee grounds in the bottom of the cup.

We recommend you use a cup with 7 to 9.5 cm in diameter.

Yes.

Since this product is designed for brewing coffee, it is not suitable for brewing tea.

Moisture content varies depending on the roasting degree and this affects on the extraction ratio. We recommend the size of the ground coffee to be medium, or a bit coarser.

Yes.