The kaffir lime tree is a tropical citrus valued for its fragrant leaves and its fruit’s peel. The kaffir lime tree has other common names, including kieffer lime, Thai makrut and limau puru. The leaves are known as bai magrood.

The leaves of the kaffir lime tree are two-toned and with a dual textural finish as well. The upper side of the leaves are a glossy deep green while the underside of the leaves are a matte green. The leaves grow in pairs from stem to stem. Sizes can vary from leaf to leaf, though they each have a teaspoon shape with pointed ends that can also be sharp, certainly a natural defense mechanism. The fragrance and essence of the kaffir lime leaf is incomparable. It has an abundant sweet citrus bouquet that lingers to the nose and the touch. Mature darker green leaves are preferred for use over the younger, less aromatic leaves.

Serving Ideas

Kaffir lime leaves are widely used in Thai (dishes such as tom yum) and Laotian cuisine (for the base paste Krueng). The sturdy leaves are never eaten whole, but rather steeped and later removed, or sliced very thinly. Their mildly herbal citrus flavor can be used to infuse desserts such as custard and ice cream. The leaves can be used fresh or dried, and can be stored frozen to extend their shelf life.

Ethnic/Cultural Info

Kaffir limes are an indispensible ingredient in the Thai kitchen. Simply referencing the use of citrus leaves essentially means kaffir lime leaves. Kaffir plants are so common that the majority of rural households have their own kaffir lime trees to harvest from.

Geography/History

The kaffir lime tree is native to landlocked Laos, Myanmar, Thailand and other parts of south Asia. The trees thrive in warm, humid climates and like other citrus varieties are extremely sensitive to cold and frost. The tree bears fruit in the winter months and flowers throughout the spring and summer.

Seasons/Availability

Kaffir lime leaves are available year round.