Authentic German WECK jars, the original glass preserving jars trusted since 1900. Ideal for fermenting, preserving, canning, and pantry storage — and a favourite for keeping sourdough starter healthy and visible as it rises. Choose from 12 sizes across cylindrical, tulip, quadro and inverted styles, all compatible with genuine WECK glass lids, rubber seals, and stainless steel clips. From £2.99, with free UK delivery over £50.