Viral chef Tristan Welch, who has more than 360,000 followers online, has revealed a quick and effective way of bringing your stale, crunchy, loaves back to life – and it only takes five minutesViral chef Tristan Welch, who has more than 360,000 followers online, has revealed a quick and effective way of bringing your stale, crunchy, loaves back to life – and it only takes five minutes