The fermentation lock or airlock is a device used in beer brewing and wine making that allows carbon dioxide released by the beer to escape the fermenter, while not allowing air to enter the fermenter, thus avoiding oxidation.
Most wood blinds are treated with a special finish to repel dirt and stains. Wood blinds can be cleaned with a good quality furniture polish and a soft cloth or clean sock. Spray the furniture polish on the cloth and wipe each slat individually. Avoid touching the cords. For heavier cleaning, you can use plain water, but be careful not to saturate the wood.
Cleaning Hard, Regular Surfaces (Glass, Plastic, Walls) 1  1. Spray the stain with a gentle degreaser. 2  2. Test your cleaning supplies in an unseen area before using on wood, enamel, or paint. 3  3. Use an abrasive sponge or brush to remove the stain.  4. Wipe clean with soap and 1  water. 5. Know that long developing stains may not come off at  all.