1.4 Maple Syrup Density Measurement. 1.4.1 Background; 1.4.2 Hydrometers; 1.4.3 Hydrotherms; 1.4.4 Refractometers . 1.4.4.1 Optical Refractometers; 1.4.4.2 Digital Refractometers; 1.4.5 Temperature Correction; 1.4.6 Instrument Calibration . 1.4.6.1 Hydrometers; 1.4.6.2 Thermometers; 1.4.6.3 Refractometers; 1.4.7 Collecting a Representative Sample
Because of this distinction, you may safely use fish even after the sell by date has lapsed. If there is a use-buy date on fresh fish, then it is recommended to either cook or freeze the fish by that date. Commercially frozen fish, if kept frozen, can be safely stored for 10-12 months.
1 Unopened processed meats, such as bacon, hot dogs and luncheon meats, should be used within two weeks after the sell-by date. 2  Unopened canned meats, such as tuna and sardines, will keep for about two years beyond the sell-by date.eneral guidelines for shelf life beyond sell-by dates: 1  Eggs usually are good for three to five weeks past the sell-by date. 2  Milk typically is good for up to seven days past the sell-by date.