Dog Breeds

Riesenschnauzer: Temperament, Exercise & Diet

⏱️ 8 min readBy Christian HacklExpert-reviewed by Eva Hackl12.08.2026
Riesenschnauzer: Temperament, Exercise & Diet

The Giant Schnauzer is one of Germany's most impressive dog breeds. Large, muscular and with a temperament that demands respect and affection in equal measure, he is not a dog for the sofa, but a partner for people who enjoy being active themselves. Anyone interested in this breed should know exactly what matters when it comes to keeping, training and feeding him. In this guide, you'll learn what makes the Giant Schnauzer special, where he comes from, and how to keep him occupied and fed in a species-appropriate way.

Breed profile and temperament

The Giant Schnauzer is the largest of the three Schnauzer varieties (alongside the Miniature and Standard Schnauzer) and reaches a shoulder height of around 60 to 70 centimetres with a weight of between 35 and 47 kilograms. His powerful, square build, distinctive wiry coat and typical beard give him an imposing appearance that radiates strength and confidence at first glance.

In terms of character, the Giant Schnauzer is exceptionally clever and eager to learn. He grasps new tasks quickly, thinks along with his human and enjoys working as a team with them. At the same time, he is watchful and shows a natural reserve towards strangers without being nervous or anxious. Towards his family, he is loyal, affectionate and often very sensitive to moods. This combination of intelligence, vigilance and emotional bonding makes him an excellent guard and companion dog, but it also places clear demands on his owners. If you're unsure whether the Giant Schnauzer suits your lifestyle, the breed finder can help you match his needs against your lifestyle.

Origin and history

The roots of the Giant Schnauzer lie in southern Germany, particularly in Bavaria and Württemberg. The breed was originally developed from the Standard Schnauzer and larger, robust droving dogs to drive livestock, especially cattle, to market. Later, Giant Schnauzers took on another important role: guarding breweries, farms and transport wagons, reliably protecting property and people.

The Giant Schnauzer was officially recognised as an independent breed in the early 20th century. In the following decades, he was increasingly used as a service and protection dog, for example by the police and the military, where his combination of strength, courage and obedience was particularly valued. This working-dog heritage still shapes the Giant Schnauzer today: he wants a job to do, to think along and to be needed. A purely decorative role doesn't suit him, and you should bear this in mind when deciding on this breed.

Exercise and training

A Giant Schnauzer without occupation is an unhappy dog, and this can quickly manifest as unwanted behaviour, such as excessive barking, destructiveness or restlessness. This breed needs both physical and mental stimulation, daily and at a high level. Long walks alone are rarely enough. Dog sports that challenge both mind and body are better suited: agility, carting, tracking and scent work, obedience training or classic protection work under expert guidance.

His working-dog character is also clearly evident in training. Giant Schnauzers learn exceptionally quickly, but also like to test boundaries and check just how consistent their human really is. Loving but clear and, above all, consistent guidance is therefore a must, not an option. Early socialisation with other dogs, people and everyday situations lays the foundation for a balanced adult dog. Because of his size, protective instinct and high energy level, the Giant Schnauzer is best suited to experienced, sporty owners who bring time, consistency and enjoyment of working together. He is explicitly not a beginner's dog.

It's also important that his exercise is adjusted as he ages. While an adult Giant Schnauzer can tolerate, and needs, plenty of exercise, physical strain must be consciously limited during puppyhood and adolescence to avoid overtaxing the joints, more on this shortly in the nutrition section.

The right diet for the Giant Schnauzer

As a large, muscular and hard-working dog, the Giant Schnauzer has a correspondingly high energy and nutrient requirement. His food should be rich in high-quality animal protein to build and maintain muscle, along with balanced amounts of healthy fats for energy and a shiny, resilient coat. How much food a Giant Schnauzer actually needs depends heavily on age, activity level and individual metabolism, a sporting dog with regular training needs noticeably more energy than a calmer family dog of the same age.

Feeding during the growth phase is especially important. Giant Schnauzers are a large to giant breed, and for these dogs slow, controlled growth is crucial for later joint health. Food that's too energy-rich, or an excess of calcium during puppyhood, can cause the young dog to grow too quickly, which increases the risk of hip dysplasia and other joint disorders. A puppy food specifically formulated for large breeds, with adjusted energy and mineral content, is therefore not a nice extra but a genuine necessity.

In adulthood, you can choose between high-quality dry food and tasty wet food, or combine both, depending on what suits and agrees with your dog best. In any case, a clear declaration of ingredients, a high meat content and the absence of unnecessary fillers are important. If you're unsure which food suits your Giant Schnauzer's age, size and activity level, the food finder can help you make an individually suitable choice.

Robust chews and chew items

Giant Schnauzers are powerful chewers with a strong jaw, and their need to chew extensively is considerably more pronounced than in smaller breeds. Chewing serves not only as occupation but also for dental care, stress relief and mental relaxation after an active day. This is exactly why you should look for robustness and quality when choosing chews, so the snack can really withstand your dog's powerful bite.

Natural chews without artificial additives are particularly well suited to powerful chewers, as they're long-lasting while remaining easy to digest. For in between times or as a training reward, high-quality natural treats are also suitable, as they can be easily portioned and won't throw your dog's overall calorie intake off balance. Make sure to always factor chews and treats into the calculation of the daily ration, so your Giant Schnauzer doesn't become overweight despite his high energy needs.

Since not every chew suits every dog equally, depending on bite strength, age or dental health, it's worth taking a look at the chew finder. There you'll find chews specifically suited to your Giant Schnauzer's size and chewing behaviour, rather than trying things out at random.

Coat care and health

The Giant Schnauzer's characteristic wiry coat, with its distinctive beard and bushy eyebrows, not only looks impressive but also requires regular grooming. To maintain the coat's texture, the Giant Schnauzer should be brushed several times a week and typically hand-stripped or clipped every eight to twelve weeks. If not stripped, the coat loses its typical wiry texture and becomes soft and more demanding to maintain.

The beard deserves particular attention, as food residue and moisture can collect there quickly during eating and drinking, which can encourage skin irritation. Regular wiping and combing of the beard should therefore become part of the daily routine.

In terms of health, the Giant Schnauzer is considered robust compared with other large breeds, but you should still keep an eye on the typical risks facing large, heavy dogs. These include, above all, hip and elbow dysplasia, which can be significantly reduced through responsible breeding, slow growth during puppyhood and suitably adjusted exercise. Gastric torsion is also a known risk in large, deep-chested dogs, which is why several smaller meals instead of one large portion, along with rest before and after eating, are recommended. Regular vet check-ups, especially during adolescence and in old age, help to identify changes at an early stage.

Frequently asked questions

How much exercise does a Giant Schnauzer need?

An adult Giant Schnauzer needs considerably more than a short walk a day. Expect several hours of exercise and activity daily, ideally combining endurance exercise, targeted training and mental stimulation such as scent work or obedience exercises.

Is the Giant Schnauzer a beginner's dog?

No. Because of his size, vigilance and pronounced need for clear leadership, the Giant Schnauzer is better suited to experienced owners who already have experience with large, confident dogs and can train with both consistency and affection.

How often does a Giant Schnauzer need to be stripped?

Usually every eight to twelve weeks, supplemented by brushing several times a week at home. This keeps the wiry coat in good structure and the skin beneath healthy and well aired.

What should a Giant Schnauzer never eat?

In principle, the same rules apply to the Giant Schnauzer as to other dogs: foods toxic to humans, such as chocolate, grapes or onions, have no place in his bowl. Especially during puppyhood, you should also avoid food that's too energy- and calcium-rich, to prevent excessively rapid growth and the resulting joint problems.

Temperament & who the Giant Schnauzer suits

In short, the Giant Schnauzer is best suited to: experienced, sporty owners who want a genuine working dog.

  • Size: very large (giant)
  • Energy level: active
  • With children: good with children
  • Flat living: rather unsuitable for flats
  • For beginners: rather for experienced owners
  • Coat care: high grooming effort
  • Trainability: very eager to learn
  • Alertness: pronounced watchdog

Not sure whether this breed suits your life? Find out with our breed finder "Which dog breed suits me?"

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This guide provides general information only and does not replace veterinary diagnosis or advice. If your dog's symptoms persist, please consult a vet.
Christian Hackl

Author & dog nutrition advisor

Christian Hackl

Founder of NANDOO and a qualified canine nutrition advisor. As an animal psychologist (specialising in dogs) and an active dog trainer since 1999, he combines sound knowledge of canine anatomy and physiology with almost 30 years of practical experience, and helps develop NANDOO's recipes.

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Eva Hackl

Expert-reviewed by

Eva Hackl

Dog trainer and animal psychologist (specialising in dogs). She is part of the DHK team and brings practical experience from training, behaviour and everyday life with many dog breeds.

More about Eva & her qualifications →