just ate a bucket of 36 eggs 10 months old put up last april 1 2020 only 2 were bad the rest had tall solid dark yellow yolks that fried sunny side up and you couldn't tell the difference from fresh fried right along side. hard boiled a dozen but never warmed them up from outdoor rootceller temp and they all cracked but tasted great in egg sandwiches, I used 1.5 oz slaked lime to 1 qt spring water, and they all went through the summer heat without refrigeration 'Preserve Your Eggs for a year easy