The Bangko Sentral ng Pilipinas (BSP) enjoins the public to properly handle and circulate 20-Piso New Generation Currency (NGC) coins that were released to the public in December 2019.
The 20-Piso NGC bicolor coin has a nickel-plated steel core and a bronze-plated steel ring.
By nature, copper-based metals like bronze undergo oxidation when exposed to the environment as indicated by a change in color shade or toning of the coin ring.
To preserve the integrity and prolong the luster of Philippine coins, the BSP advises the public to observe the following:
1.Keep the coins clean and dry;
2.Avoid putting adhesives on the coins;
3.Avoid soaking the coins in liquids for prolonged periods;
4.If needed, clean coins using weak acid, e.g., citric acid from kalamansi/lemon; rinse with water and wipe it with a dry cloth or paper towel; and
5.Do not use chemicals that contain oxidizing agents such as bleach, or strong acids such as muriatic and sulfuric acids. If coins were accidentally exposed to these chemicals, immediately rinse with water and wipe them with dry cloth or paper towel.
The BSP encourages the cooperation of the public in its commitment to preserve the integrity of Philippine currency.