Four Montreal students have entered the grocery business by opening a store with a unique concept.

Loco Grocery store is taking bulk shopping a bit further by aiming to produce no waste at all.

Shoppers are encouraged not just to bring their own bags, but their own containers for nuts, flour, and even items from the salad bar.

A local catering company handles a small vegetarian buffet.

"There's only six non-packaging grocery in the world, and I think here it's the sixth, so I'm very happy to be a part of the change, we need to change our attitudes," said Yanick Leonard of Madame Virgule catering.

Some of the products come in glass jars that customers are asked to return so the producer can sterilize them and use them again.

"If you don't have your own jars you can rent it here so it's either one dollar or two dollar and when you come back you bring back your jar and we refund you," said Andreanne Laurin.

The store's owners say their goal is to focus on locally-produced food, preferably organic, and keeping the prices as low as possible.

"It's almost all organic or its food from small producers in Quebec that do organic but are not certified yet," said Laurin.

Laurin and her partners, including Martine Gariepy, said the challenge was getting producers to alter the way to deliver their products.

"Working with small ones so we can ask them to deliver in the way they reuse the same container to deliver to us," said Gariepy.

The store also offers soaps and other cleaning products, all made locally.

They've even found an alternative to plastic food wrap, in fabric made of hemp and organic cotton covered in beeswax. It's reusable and washable.