Vinegar

Vinegar is a liquid consisting of about 5-20% acetic acid (CH₃COOH), water and other trace chemicals, which may include flavorings. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. Vinegar is now mainly used as a cooking ingredient. Historically, as the most easily available mild acid, it had a great variety of industrial, medical and domestic uses, some of which (such as its use as a general household cleanser) are still promoted today.

Commercial vinegar is produced either by fast or slow fermentation processes. In general, slow methods are used with traditional vinegars, and fermentation proceeds slowly over the course of months or a year. The longer fermentation period allows for the accumulation of a nontoxic slime composed of acetic acid bacteria. Fast methods add mother of vinegar (bacterial culture) to the source liquid before adding air to oxygenate and promote the fastest fermentation. In fast production processes, vinegar may be produced in 20 hours to three days.

Michéal Castaldo

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Michéal Castaldo (born September 25, 1962) is an Italian-born classical crossover tenor,music producer and composer.

Early life and musical career

Castaldo started his voice studies with maestro Pisapia, a protégé of the Italian operatic tenor Enrico Caruso. Castaldo graduated from Oakwood Collegiate Institute in Toronto and Berklee College of Music in Boston (1986).

In 1989, Castaldo was named an Abe Olman Scholarship Award recipient by the Songwriters Hall of Fame. Castaldo wrote and produced "Goin' Krazy" which was released by José Feliciano 1994, which entered the Billboard dance chart.

Castaldo has recorded six solo studio albums. His third album Aceto was released in 2010. The album includes 14 classic and 2 original Italian songs. He recorded an Italian version of "Hallelujah" on the album. A video of the song was filmed in Toronto, Canada, in December 2010 by filmmaker Greg Riccio Jr. supporting the Free Hugs Campaign to promote random acts of kindness.