If the temps are in 40's, I have no problem laying it on cement floor of garage and hanging the next day. If temps get into 50's or higher you need to cut it up and put somewhere cool. We just did one yesterday that was shot Mon. night. It was getting warm, so cut it up(always boneless) and put in plastic tubs in garage fridge, then pull out some a little at a time next day while its real cold and trim up. Food born illness forms between 40 and 140 degrees. Anything in those temps should be processed. I bet if you checked a slaughter house cooler, their temps are probobly around 38.
Hope this helps. This is taken from the USDA regulations.
Chilling
• Measures to control the holding temperature of the carcass after the final wash or after any CCP designed to reduce pathogenic organisms on carcasses should be in place. Control of the temperature will ensure that the reduction in microbial load effected by the CCP will be maintained. In addition, to retain the log reduction in microbial load as a result of the CCP and to prevent re-contamination, other sanitation control methods should be used.
• All carcasses need to begin chilling within 1 hour from bleed-out. All variety meats need to begin chilling within 1 hour after removal from carcass. Refrigeration parameters should be defined, established and recorded so that carcasses reach a temperature of 40 °F or less within 24 hours and maintained on all products.
• Refrigeration parameters should be defined, established and recorded so that carcass reach a temperature of 40 °F or less within 24 hours, and that this temperature is maintained on all products. Carcass temperature should be taken and recorded daily from 5 randomly spaced locations, usually 1 mm under fascia on the inside round.
• To prevent cross contamination and to allow efficient air circulation, cooler storage rails must be placed at least two feet from refrigeration equipment, walls, columns, and other fixed parts; traffic or header rails during transport, at least 3 feet from the walls. Sides of beef should be placed in the chiller so that there is no contact between them to allow efficient air circulation. Condensation should be prevented or minimized.
• Finished product storage areas should not exceed 40 °F.
• Aged beef should be held no longer than 7 days at a temperature not exceeding 40 °F.
• Carcasses for hot boning (deboned before chilling) should be transported to the boning areas directly from the slaughter department. The boning room environmental temperature should remain at 50 °F (10 °C) or lower, and boning should not be delayed.
1) Raw materials should be placed under refrigeration until the product can enter the flow of operations.
2) Within one hour after the first cut is made, product should be placed under refrigeration or cooked.
3) Temperature at the center of the product placed under refrigeration should reach 40 °F (4.5 °C) or lower.
Food Safety and Inspection Service September 2002 Available for Public Comment
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