JL bread preservative is a highly effective anticorrosion antistaling agent, created using advanced Japanese technology. This product meets the World Health Organization (WHO) standard and is consistent with the UN Food and Agriculture Organization (FAO). These are non-toxic with no known side effects. It is based on GB2760-2007 and GMP rules regarding the use of quantities as per yourproduction needs. Can keep for 25 -30 days around 20c, and for 15 days at 30c... in either case, the quality of the product will not change. Usage: 1. Disolve in hot water, add to other water and mix in well with the flour 2. Use only good quality fresh ingredients 2. Do not mix with flamable objects or oxidants 3. Store in a cool dry place away from the light.