This week’s wines have minimal sulphur, but be warned that these may taste a little different

This is an EU and US requirement and given that sulphur is produced naturally when grape juice is fermented into wine you won’t find many bottles without this written on the label (10 parts per million is the cut-off point).
Sulphur is used as a spray in the vineyard to ward off fungal diseases and is especially useful for organic growers so there is nothing unnatural in sulphur itself (Irish farmers use sulphur dioxide to prevent potato blight).