Surprise place you can find some of the cheapest groceries in the country

Discount websites aren't just for vacuum cleaners and rugs. They are also home to some of the cheapest groceries in the country.

For those struggling to make ends meet, by stocking up on pantry staples, snacks and non-perishables, you can ensure you always have the makings of a delicious meal and save at the supermarket checkout.

There are real savings to be had, and with prices this low you can afford to purchase items in bulk so they last weeks if not months.

Here are the best grocery deals you can find this week on discount websites.

1. Amazon

Amazon has great deals on items including cereals, coffee, condiments and snacks this week. This week you will find Kellogg's 380 grams Crunchy Nut Corn Flakes for $4 which would cost $6.50 at the supermarket and Kellogg's 200 grams Nutri Grain for $4.49.

Moccona Classic Medium Roast Freeze Dried Instant Coffee, 400 grams, is also a bargain this week at $17.55 compared to $28 at the supermarket.

Other specials on Amazon this week include a two-litre refill container of Fountain Tomato Sauce for $3.75, a 10-pack of Kirks Lemonade for $7.80 and a five-pack of Indomie Migoreng Instant Noodles for $4.58.

2. Catch

Catch offers bulk, discount purchases for everything from groceries to cleaning products, toiletries and snacks. They even have a great range of Easter eggs.

This week the site is selling three-packs of Carman's Nut Bars.

Usually this would cost you $19.50 but on Catch you'll only pay $14.40.

Another awesome deal on the site this week is a 12-pack of Sirena Tuna in chilli oil which would cost $35.40 at the supermarket.

Catch is selling them for $28.50 this week.

Other significant savings include a 200 pack of Tetley teabags for $5.99, a three-pack of Continental Snack Pot Pasta for $7.20 and a four-pack of White Wings Pancake Mix for $8.80.

3. Delish Deliveries

The best savings to be found at Delish Deliveries is definitely the in-season fruits and vegetables which are available in a range of sizes. The company has also recently expanded into groceries, which is where more bargains can be found.

This week you will find Community Co Oats Quick Original Sachets 12 X 35 grams for $4.72. A similar offering from Uncle Toby's containing just 10 sachets at supermarkets will set you back $5.00.

Also at Delish Deliveries this week, a pack of 12 barn raised eggs for $5.99. These could cost you as much as $7.60 at the supermarket.

Also on sale at Delish Deliveries this week, a five-pack of royal gala apples for $1.99, 2 punnets of strawberries for $6.00 and a kilo of Thompson grapes for approximately $4.99.