The present invention is directed to a beverage capsule (100) comprises a capsule body (101) with an outlet (104), a plug (111) configured to mate with said outlet (104), and an opening device (110) being at least partially fabricated from a shape-memory alloy and biased to retain said plug (111) within said outlet (104) in a first, closed position, and which is configured to deflect from said first, closed position when heated above the transition temperature of said shape-memory alloy, thereby withdrawing said plug (111) from said outlet (104) into a second, open position and permitting fluid communication through said outlet (104).
