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Rockster – Boeuf Du Cap (400g can)

Rockster

Rockster: Boeuf Du Cap (400g can) review

80.4/100Outstanding
WetAdult

Rockster reads more like a butcher's order than a recipe, and the eight recipes split evenly between our Excellent and Outstanding bands. Cuts are itemised down to lung and tongue, and the strongest labels print a percentage beside each one. Behind the meat sits a small garden of quinoa, pumpkin, berries and roots.

Where to buy: coming soon
Live retailer links are coming soon. Once we have them from UK retailers, where to buy and the best price will appear here.

Our view

Likely to suit

  • An unusual animal: rabbit, venison and duck each head a recipe
  • Organs itemised, with muscle, lung, liver and tongue printed by weight on several labels
  • Households buying organic, declared on every label
  • Small dogs and light eaters, with a 195 g can alongside the 340 g and 400 g sizes
  • A small plant side, kept to low single figures on most labels
  • Joint support in the venison recipe, with green lipped mussels at 1%

Worth watching

  • Both Fisherman's Dream recipes add calamari and mussels to the salmon
  • Salmon oil in the beef, duck and venison recipes, so those three are not fish free
  • The two Boeuf Du Cap sizes share a list but print very different analysis panels
  • Chickenrella and Duck A La Royale leave ash off the analysis

Written by our editorial team. Independent guidance, not veterinary advice.

How this scores

How we score
80.4/100Outstanding
Protein and processingExcellent
Nutritional balanceOutstanding
TransparencyOutstanding
ValueOutstanding

The details

Dog fit

Every recipe is listed for adults of every size, and A Fisherman's Dream and Duck A La Royale for puppies and seniors too. Match the can size to your dog before ordering.

Food type

Wet

Life stage

Adult

Breed size

Toy, Small, Medium, Large, Giant

Main protein

Beef

The score, in context
  1. Duck A La Royale 83.6
  2. A Fisherman's Dream 80.8
  3. Boeuf Du Cap (400g can) 80.4
  4. Heaven 80.0
  5. A Fisherman's Dream (400g can) 76.0
  6. Sound Of Game 74.5
  7. Chickenrella 73.3
  8. Boeuf Du Cap 70.3

Eight recipes across Outstanding and Excellent. Typical wet food: Excellent.

Half the range climbs into Outstanding and the rest hold Excellent, so the animal is the thing to choose on.

What's in it
  • Bio-organic beef: muscle meat 40%, lung 30%, liver 15%, tongue 15%82%Liver earns its place in a small share: rich in vitamin B12 and vitamin A, and easy to digest.
  • Bio-quinoa6%
  • Bio-pumpkin5%
  • Bio-carrots4.5%
  • Spirulina algae1%
  • Salmon oil (pharma grade)1%Marine omega 3.
  • Bio-fermented Jerusalem artichoke concentrate0.5%

A separate panel of vitamins A, D3 and E with zinc, manganese, iodine and copper, each with a figure.

Declared energy is 70 kcal per 100g, far below the rest of the range, so the daily portion is much larger.

Named ingredients

82% Bio-organic beef (40% Muscle meat, 30% Lung, 15% Liver, 15% Tongue), 6% Bio-quinoa, 5% Bio-pumpkin, 4.5% Bio-carrots, 1% Spirulina algae, 1% Salmon oil (pharma grade), 0.5% Bio-fermented Jerusalem artichoke concentrate
Against the range
Protein, dry matter
53.8%
The highest in the range; 28% on the 340 g can.
Carbohydrate, dry matter
4.1%
34% on the 340 g can.
Energy
70 kcal per 100g
Far higher on every other recipe.

The leanest-reading panel in the range, and the most meat-heavy on paper.

Eight recipes across salmon, beef, chicken, duck, rabbit and venison, with organic ingredients declared on every label. Where percentages are printed, the named animal runs from 82% to 86%, and organs are itemised by name and weight: liver, lung, tongue, heart and gizzard.

The plant side is small and chosen, with quinoa doing most of the work on the recipes that carry it, and fibre runs high as a result. Vitamins and minerals are folded into the ingredient list on some labels and printed as a separate panel on others, so the doses do not compare line for line.

Nutritional analysis

Declared analysis

Energy
70 kcal/100g
Protein

11.9%

Fat

5.9%

Fibre

1.9%

Ash

1.5%

Moisture

77.9%

Dry weight

Protein

53.8%

Fat

26.7%

Fibre

8.6%

Ash

6.8%

Carbs

4.1%

As-fed composition

Estimated breakdown of the finished product by ingredient category, from the declared ingredient list and ingoing weights. These are estimates, not measurements.

Meat

82%

Carbs

6%

Veg

10.5%

Oils

1%

Other

0.5%

Pricing & size
Price per kilo
£14.02 (RRP)
Pack
400 g can - sold as 12 Cans / 6 Cans
A 15kg dog eats (our estimate)
1080 to 1320 g a day, 1200 in the middle
Cost per day, 15kg dog
£16.82

At 70 kcal per 100g, a 15kg dog needs around 1200 grams a day, so the daily cost runs far above the rest of the range.

Premium end of the market for a wet food, and fair value for the quality on offer.

Ingredients and nutrition are taken from manufacturer data. Retailer pricing is not yet live for this food.

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Reviewed by Off the Leash Editorial

Last updated 28 August 2026