Spices – TEMA Steam Sterilizers: ASTA Annual Meeting and Exhibits, April 7 – 10, 2019. Omni Amelia Island Plantation Amelia Island, Florida USA. The American Spice Trade Association (ASTA) is an American trade association for companies importing, processing and distributing food spices. It was founded in New York City in 1907. TEMA Process is member of the ASTA and the ESA (European Spice Association).