When it comes to kosherization, the distinction between steel and glass is a significant factor.  In fact, the kosherization of what was reportedly a stainless-steel reactor sometimes must be delayed or canceled because the OU Kosher field representative supervising the...

Fresh water is innocuous from a kosher perspective, but when reclaimed from a non-kosher production it can have serious implications for future kosher productions. Here are four cases where a company has reclaimed or reused water from one production for...

BTUS: The OU is a kosher certifying agency, and most of what goes on here is the work of ensuring that our certified companies are producing kosher products. How does marketing support our mission? RJ:  The OU is also interested...

One of the latest projects at the OU has been developing guidelines for the kosherization of general purpose railcars. Dozens of OU-certified companies regularly supply or receive liquid commodities, including vegetable oil, corn syrup, and ethanol, using railcars, which is...