Narragansett: They use a bottling date. The brewery puts a set of numbers on the bottom of the cans. The first 3 numbers are the day of the year, and the last digit is the last number of the year. For example, if the first 4 numbers on the bottom of the can are 1483, this means the beer was born on the 148th day of 2013.

National (MD): They use a bottling date on their back label.

Natty Greene's: They use a born on date. From information we have seen the brewer states that the code can be found on the back label over the bar code reads as follow: XXBYYY the XXB is the code for the wholesaler and the YYY is the Julian day when it was bottled = born on date.

Nebraska Brewing: From information we have seen the brewer that at this time they do not have bottled dates on our reserve series as each has only one bottling per year. Reference the year on the label to tell them apart. They estimate each will be great for about 2 years.

Nectar Ales: They use a bottling date which is burned into the label on the bottom left hand side. They also have a "Fresh Beer Reporter" on their website.

Negra Modelo: They use a six-character code with the bottling date in the last two characters. The next to last letter gives the month and the last digit is the year. Thus, 2421C9 is March 1999.

New Belgium(Fat Tire): They clearly shows the best before date. Also has a bottling date. There is a 9 digit number on the lower-right part of the label, or the bottom of the can: the format is YYMMDDXXX, where the packaging date is MM/DD/YY.

New England: They use a packaged on date which is on the inside of the case. Format is MM/DD/YY.

New Glarus: They use a packaged date. Cases: Example “1339  1728” means beer was packaged on the 133rd day of 2009 (Julian Calendar) at 17:28 (Military Time = 5:28 pm). Bottles: “0689  1219” means beer was packaged on the 68th day of 2009 at 12:19. 

New Holland: They use a bottling date. It should be located on the shoulder of the 12 oz or 22 oz bottle.  It is a 4 digit code.  The first digit is a letter (A = January, B = February, C = March, etc.)  The second two digits are the day of the month (01 - 31).  The last digit is the year in the decade (0 - 9).  So if you have a date code that reads F239 that would then mean that the beer was packaged on June 23, 2009.  

Night Shift: They use a bottling date on all their beers.

Nimbus: They use a bottling date.

Ninkasi: They use a bottling date. From information we have seen the brewer states that the cases are dated and we recommend drinking the beer within 60 days of purchase to ensure freshness.

No-Li Brewhouse: They use a bottling date on their cases only.

North Coast: They use a bottling date on cases only. From information we have seen the brewer states that If bought by the case, the dates are only ON the case. However, if purchased by the six-pack, bottling date is in white ink toward the bottom of the bottle  The first two digits are the year the beer was brewed, the second three are the batch number and the final four are month and day.  So if you've got a code that reads 100980730 that means that the beer was brewed in 2010, the batch number is 098 and the day of bottling is 7/30.

North Peak: There doesn't appear to be any dating on the beers since April 2013. Uses a bottled on date. It's printed on the label directly above the UPC code. Example: DEC1610.

Nosdunk: They use a bottling date.

Notch: They use a bottled on date. It is printed on the shoulder of the bottle and the bottom of the can.