Hottop Coffee Roaster Maintenance - replacing the top filter, back filter, cleaning out the drum and face plate.Roasterhttp://amzn.to/2fRxCQiShopvachttp://amzn.to/2F4QEfkHave had this roaster for almost 5 years now, still going strong. any questions let me know ! www.alldayieat.com coffee roasting home coffee roaster