You show them the storage area

You led the newcomers through the huge underground maze of hydroponic equipment, some producing crops but most with their LED lights turned off; waiting to be of service. But after a few minutes, you made your way to an enclosed area of the bunker that looked a bit more homely because of the paint, unlike back at the entrance. And eventually, your group spots a security door with a fingerprint scanner and password keyboard to the sides.

"Huh," Luciana said in a pondering tone as she eyed the door. "Not made of wood or plain steel," The master carpenter noted.

She turned back at you. "State of the art fiberglass?" She guessed.

You chuckled.

"Ten points for Brazil," You said shamelessly, making your fellow Harry Potter fans snicker. "But yes, and what a great material it is. Assuming no one intentionally tries to break it, this door should easily last over a century."

Ava whistled.

"Nice. What exactly is it guarding?" The blonde asked.

You smiled.

"The future," You answered cryptically before heading to the fingerprint panel.

Once the door was unlocked, the girls paused for a moment before following you inside. Before long your group found itself in a storage area housing stacks of with a few thousand cans of non-perishable food and even dozens of wine bottles. The young women looked around in fascination, many of them smiling brightly when they recognized some of their favorite brands. But then, they turned around a corner and frowned when they saw a bunch of white, 5-gallon buckets with bags inside.

"What's that?" Carmen asked, pointing.

"That, my ladies, is one of the six pillars of our food supply," You declared. "Long story short, those bags are hermetically sealed and they are called Mylar bags. Dehydrated food inside those bags and kept in buckets can last anywhere from a few years long after it would otherwise rot all the way to 3 to 4 decades."

Kate gasped.

"They covered this in class," The redhead said, her eyes widened. "They are mostly used for stocking up on food in case of emergencies. How many do you have?"

"Well, those right here are the ones we are currently using," You explained. "Which means my wives are either storing excess food from the hydroponic farms within, getting some extra food from there we aren't currently producing or we are taking seeds from the bags to use for farming. But there is a much bigger enclosed section past the door in front of the entrance that houses all the professionally dehydrated food I could get my hands on before the plague. It's all stored within similar 5-gallon buckets. And they are 20,000 to be precise," You answered with a grin, feeling proud of yourself.

The girls chocked up at that.

"Seriously?!" Ava asked, shocked.

"Yep," You replied, amusement in your eyes. "There are also 30,000 more empty buckets as well, waiting to be filled with the food we grow ourselves. But we don't have time to check that out yet, I am afraid."

"Why not?" Luciana asked, confused.

"Because Laura and Sophie must be ready by now," You explained. "So, come on, it's time for you to meet my other group of guests."