This fruit is too small to juice with a standard citrus juicer. The easiest way to juice calamansi is to cut each one in half and squeeze by hand, then strain the juice through a sieve ...

Squeeze its juice and use it as a sharper alternative to the classic lemon curd, or add it to soups, stir-fries, pies, ...

If you slice it, it struggles under the knife, putting up a fight with the hard core that it has, much unlike the Calamansi, which slices off easily and bursts with the citrusy juice it has within.