Plant manager Issac Flynn says the creation process starts with the breast being delivered and checked over to make sure there are no bruises or blood spots.
It's then minced together, then combined in a brine mix, before being moulded into one of four shapes - the bone, the bell, the boot and the ball.
Moulded nuggets then go through the battering process, are flash fried, snap frozen, weighed, bagged, and packaged before being delivered to restaurants.
Typically they process around 20 tonnes of McNuggets, that's around 1.3 million a day.
However, that simply isn't the case. At least, it wasn't when the Herald visited the plant on Wednesday morning when all that was used was chicken breast.
Flynn was teased and asked numerous times about beaks, feet and claws, but he is able to assure diners there are no hidden nasties in your favourite chicken recipes.
It came as McDonald's offered one million free McNuggets to Kiwis for one day only.
McDonald's is committing to the promise that was delayed during Covid-19 lockdown health and safety requirements in August.
Nugget lovers could only get their hands on a free six-pack if they download the McDonald's app and redeem the digital voucher in-store or in the drive-thru.
McNuggets first featured in New Zealand in 1985 and McDonald's managing director Dave Howse says they wanted to give back to Kiwis after 35 years of them supporting the sale of chicken nuggets.
"It became clear during lockdown that Chicken McNuggets are a firm favourite so we decided to shout Kiwis a six-pack and celebrate 35 years of love for them.
"We're proud of our long-standing supplier relationships, and to offer Kiwis Chicken McNuggets raised in our own backyard."
More than 140 million Chicken McNuggets were consumed by Kiwis in 2019.
McDonald's annual chicken order equates to just over 3.75 million tonnes, all of which is reared by 30 farmers based in the Waikato region.
Some nuggets about McNuggets:
• Chicken McNuggets were first offered on New Zealand menus in 1985;
• Chicken McNuggets are available in four shapes – the bone, the bell, the boot and the ball;
• Rene Arend, McDonald's first executive chef, created the Chicken McNugget recipe in 1979;
• In America, Chicken McNugget dipping sauce is available in seven varieties, including the Sweet 'n Sour and BBQ options available in New Zealand;
• Szechuan Sauce is McDonald's most sought-after limited edition dipping sauce. Released in New Zealand earlier in 2020, the sauce ran out in some restaurants within hours.