Slowly, because they’re a little expensive, I’ve been adding Weck jars to my pantry to hold things like candied ginger, special sugars and salts. I love their clean lines and how neatly they stack. But sometimes I would lose track of what was in them — is that whole wheat flour or whole wheat pastry flour? Things were starting to look a little tatty as I added masking tape labels until I discovered the white pen!