<p>The invention relates to a method of manufacturing a plate heat exchanger comprising providing a first heat exchanger plate, covering the first heat exchanger plate with at least a second heat exchanger plat, folding portions of the two heat exchanger plates together along at least a section of at least one border associated with said plates to form a fold and applying a sealant, said sealant being applied to at least a part of a lateral surface constituted by said heat exchanger plates. The invention also relates to a plate heat exchanger manufactured using said method.</p>
