Visitors to Trefriw Woollen Mills can see the weaving and hydro-electric turbines which generate our electricity (Mon - Fri mid February to mid December). Additional machinery (carding engines, spinning mules, warping mill etc.) can be viewed April - October (Mon - Fri). Hand spinning is demonstrated June - Sept (Tues - Thurs). Our products are available in the shop together with pure wool knitwear, accessories and sheepskin products.