We personally would recommend Terad3 blox
for inside food facilities. You can read the Terad3 product label here
. Terad3 is a new organic bait which is labeled for inside USDA facilities. However, any time you use a bait inside a food facility it must be only used inside tamper resistant bait stations
. How often you should replace the bait all depends on how fast the rodents eat it. You should always keep plenty of bait in the stations to support the amount activity that may be around. You should never place bait where there could be a chance of contaminating any food.