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Expert comment: The surface of rice contains potassium. It has been proved by experiments that the first two or two Taomi waters will exhibit a weak acidity with a pH of about 5.5. After washing twice, the pH value is about 7.2, which is weakly alkaline. The rice water is very suitable for cleaning items. It can replace sebum instead of soapy water. Compared with general industrial washing powder, it has moderate detergency, mild texture and no side effects.
Once the rice water is heated, the cleaning ability is stronger. This is due to its starchy denaturation, which has good lipophilicity and hydrophilicity and can easily adsorb grease.
Keychains are one of the most common souvenir and advertising items. Keychains are commonly used to promote businesses. A standard advertising Keychain will carry the businesses name and contact information and often a logo.
In the 1950s and 1960s, with the improvement of plastic manufacturing techniques, promotional items including keychains became unique. Businesses could place their names on promotional keychains that were three-dimensional for less cost than the standard metal keychains.
Keychains are small and inexpensive enough to become promotional items for larger national companies that might give them out by the millions. For example, with the launch of a new movie or television show, those companies might partner with food companies to provide a character keychain in each box of cereal.
A souvenir sandal keychain from the Philippines
Keychains that currently hold keys are an item that is never long misplaced by the owner. People sometimes attach their keychain to their belt (or belt loop) to avoid loss or to allow quick access to it. Many keychains also offer functions that the owner wants easily accessible as well. These include an army knife, Bottle Opener, an electronic organizer, scissors, address book, family photos, nail clipper, pill case and even pepper spray. Modern cars often include a keychain that serves as a remote to lock/unlock the car or even start the engine. An electronic key finder is also a useful item found on many keys that will beep when summoned for quick finding when misplaced.
If the towel is stained with fruit juice, sweat, etc., it will smell and harden. Soak it in the rice water for ten minutes and it will become white and soft.