The company is also infusing its Rare Oak Pale Ale with elderflower and sweet gale, otherwise known as bog myrtle, a plant which typically grows in peat bogs.
Founder Dougal Sharp said: “The majority of oak used for maturation in the brewing and distilling industries comes from America or Europe.
“Scottish oak is similar to its European counterpart in that it releases more tannins, which give spicier flavour notes.
“American oak is completely different. It contains far higher levels of vanillins and lactones, which produce a buttery richness and toffee-like characteristic.”
Rare Oak Pale Ale is available in 33dl bottles in Tesco stores nationally for £1.99.