what is in hard apple cider

{"title":"500L Cider Equipment International Standards 304 SS Body Material","imgUrl":"https:\/\/img.chinax.com\/nimg\/4d\/95\/77f3886a8089b031a81e27d718a2-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"HERMANN","Model Number":"HEM-5BBL","Minimum Order Quantity":"\u22651Set\/Sets","Delivery Time":"15-50 work days","Certification":"CE,ISO9001,TUV","Place of Origin":"China","Payment Terms":"T\/T, Western Union, MoneyGram","Supply Ability":"1-30 Set\/Sets per Month","Packaging Details":"Iron frame","Name":"Apple cider","Material":"Stainless Steel 304\/Stainless Steel 316\/Copper","Heating way":"Steam Heating \/Electric Tube Heating\/Direct Fire Heating","Thickness of Tanks":"Inner 3mm\/Outer 2mm","Heat Insulation":"Rock Wool","Control System":"PLC","Surface":"Brushed Stainless Steel","After-sales Service Provided":"Engineers available to service machinery overseas"}}