If you want stronger coffee, use a lower water-to-coffee ratio. For example, the standard ratio is 16:1 water to coffee, i.e. ~300g water to 18.5g coffee. To ma

If you want stronger coffee, use a lower water-to-coffee ratio. For example, the standard ratio is 16:1 water to coffee, i.e. ~300g water to 18.5g coffee. To make it stronger, add an extra gram. Grind size doesn't affect strength.