Fill it with hot (not boiling) water, add a tablespoon of biological detergent and leave overnight.
Rinse well and if it’s not all gone use a nylon brush to shift the rest. Take a bottle brush to the spout.
Fill it with hot (not boiling) water, add a tablespoon of biological detergent and leave overnight.
Rinse well and if it’s not all gone use a nylon brush to shift the rest. Take a bottle brush to the spout.