Fans of cleaning pro Mrs Hinch are raving about a 9p hack that leaves your grease-ridden air fryers looking brand new in just five minutes – and it doesn’t require any elbow grease whatsoeverFans of cleaning pro Mrs Hinch are raving about a 9p hack that leaves your grease-ridden air fryers looking brand new in just five minutes – and it doesn’t require any elbow grease whatsoever