Our tabs are designed to be gentle – but we still recommend not washing silver, lead crystal or hand-painted porcelain in the dishwasher.
It's also best to avoid washing wood, aluminium, decorated porcelain or delicate plastic items.
If you're unsure whether a specific item is dishwasher-safe, it's worth checking the manufacturer's instructions or the product itself – there's often a dishwasher-safe symbol printed on it.