credit and debit card. CVV Number location and information. The CVV Number (Card Verification Value) on your credit card or debit card is a 3 digit number on VISAÂ®, MasterCardÂ® and DiscoverÂ® branded credit and debit cards. On your American ExpressÂ® branded credit or debit card it is a 4 digit numeric code. Providing your CVV number to an online merchant proves that you actually have the physical credit or debit card - and helps to keep you safe while reducing fraud.
A refrigerator maintains a temperature a few degrees above the freezing point of water. Optimum temperature range for perishable food storage is 3 to 5 Â°C (37 to 41 Â°F).mong the smallest is a 4 L Peltier refrigerator advertised as being able to hold 6 cans of beer. A large domestic refrigerator stands as tall as a person and may be about 1 m wide with a capacity of 600 L. Refrigerators and freezers may be free-standing, or built into a kitchen.
Using a hygrometer, test the temp and humidity in a variety of places in your fridge, especially the vegetable drawers. You ideally want an average temperature in your refrigerator of about 4-5 degrees C (37-40 degrees F), and a temperature of about -18 to -17 degrees C in your freezer (0-4 degrees F).Youâll notice, though, if you test a variety of locations in your fridge, youâll learn where itâs coldest and where itâs warmest.sing a hygrometer, test the temp and humidity in a variety of places in your fridge, especially the vegetable drawers. You ideally want an average temperature in your refrigerator of about 4-5 degrees C (37-40 degrees F), and a temperature of about -18 to -17 degrees C in your freezer (0-4 degrees F).