A Subway worker has lifted the lid on the fast-food chain's top secrets - including which ingredients you should avoid and how to get a free sandwich.
The employee advised customers to steer clear of roast beef as it goes off quickest, and warned that at his store the meatballs - which are not always fresh - are sometimes served in semi-solid sauce.
The self-proclaimed "graveyard shift" worker added: "Let me sum it up for you, the deli-paper your sandwich is made on (just from coming into contact with the cutting board) should be considered a health biological hazard.
"In fact, if you notice an employee wrapping your sandwich in deli paper THEN the sandwich paper, tell them the f*** not to... Trust me... We wipe them off all the time, but we only clean them twice a month."
The anonymous employee - who claimed to work at a US branch on the East Coast - shared his experiences in a Reddit thread that also details how to land a free sandwich.
"Complain," he wrote. "Look really distressed and disgusted with how they're making your sandwich.
"Order something, and take it to your seat, open it... Walk back and tell them it's not made right. 9 times out of 10, they'll just make you a free courtesy sandwich.
"This wont work everywhere, but at our store we're trained to not argue back and to just give them a second sandwich for free."
Alternatively, the worker said be "extremely nice" and start casual conversation with the "sandwich artists".
"Then when he's ringing you up," he continued, "Look into your wallet and exclaim "Oh s***, I thought i had more cash! I wont have enough"... then ask him if he can 'hook it up'.
"Again, it's a gamble, but if you play your cards right, you'll get a discount of some kind..."
Despite the scathing criticism, the Reddit user claimed to still enjoy the food - adding his favourite sub is a toasted foot-long Spicy Italian with double meats, onions and bell-peppers.
Subway has been contacted for comment.
