Herz Buying Guide 2026: How to Choose Low-Temperature Air-Dried Dog Food, Single-Protein Formulas and Pure Meat Complete Wet Food

Quick answer: Herz focuses on low-temperature air-dried dog and cat food, with about 14% to 15% moisture and a soft-flake texture that is easier to chew than regular dry food, suitable for puppies and senior dogs. The grain-free single-protein range has about 30% protein, with 2lb packs priced from HK$152.5 to HK$335; the Gourmet Supreme range (tender beef or tender chicken with duck liver) has 36% to 37% protein, about HK$245 for 1lb and HK$445 for 1kg. Finish within 60 days of opening and store in a cool, dry place below 25°C.

Herz takes a different approach from traditional dry food: instead of high-temperature extrusion, it uses low-temperature air-drying (Gently Air-Dried) to slowly remove moisture, resulting in soft flakes with a meaty feel. The brand's products are made in factories certified to BRC, ISO 22000 and HACCP, and the formulas are marketed as grain-free, potato-free and meat-meal-free.

Direct answer on Herz: The brand uses a low-temperature air-drying process, with about 14% to 15% moisture; the grain-free range has about 30% protein and 12% to 20% fat, with 2lb packs priced from HK$152.5 to HK$335; the Gourmet Supreme range has 36% to 37% protein, about HK$245 for 1lb and HK$445 for 1kg. The products meet AAFCO nutritional standards and can be used as a staple, and are also suitable for puppies and senior dogs with weaker chewing ability. Prices above were checked in October 2026; actual selling prices are subject to the online store.

Brand key facts at a glance

How does low-temperature air-drying differ from regular dry food?

To understand Herz's selling point, you first need to understand the process difference. Regular dry food is formed by high-temperature extrusion, during which moisture is quickly removed and some nutrients are lost; low-temperature air-drying slowly dehydrates at a lower temperature, leaving the finished product at 14% to 15% moisture, slightly higher than traditional dry food, with a softer texture.

There are three practical effects:

• Higher nutrient density: because there is less moisture, protein and fat are more concentrated per unit weight, so you need to feed less than regular dry food.
• Lower chewing burden: the soft-flake texture breaks apart easily, which is friendly to senior dogs with poor teeth and puppies during teething.
• Simpler ingredient list: the brand states no animal organs or bones (the Gourmet Supreme range adds duck liver), no rice, wheat or corn, no potato starch and no meat meal.

Note: air-dried food is not the same as raw food; it is a cooked product that has been dried, and after opening it can be kept sealed at room temperature without refrigeration.

Grain-free range: how to choose a single protein?

The grain-free range is the brand's main line, all using 100% single meat sources (except the Gourmet range), stated to contain no organs or bones, suitable for dogs prone to reactions to multiple proteins.

A few buying directions:

• For a safe introduction: Taiwan duck breast (HK$305) is a popular choice, with 20% fat, suitable for dogs with higher daily activity levels.
• For sensitive stomachs: hypoallergenic lamb (HK$318) includes pumpkin, turmeric and beet; pumpkin fibre helps intestinal motility.
• For weight control or skin and coat care: the venison formula has the lowest fat (12%), with 29,400mg Omega-3 and 6,000mg Omega-6 added per 1000g.
• For budget priority: turkey breast 2lb at HK$152.5 is the cheapest single-protein option in the line.

Gourmet Supreme range: the high-protein version

If your dog needs higher nutritional density, or is a picky eater with a small appetite, consider the Gourmet Supreme range. This range uses a mixed-meat formula and adds duck liver for natural vitamins A and B complex.

Comparing the two: the grain-free range wins on single ingredients and lower allergy risk; the Gourmet Supreme range wins on high protein and strong palatability, meeting AAFCO adult maintenance standards. For puppies, senior dogs or those sensitive to multiple proteins, the grain-free range is still recommended as the main choice.

How much to feed daily? Feeding amount table

Air-dried food is nutrient-dense, so portions should be weighed accurately, not poured by feel. Below are the daily recommended amounts for adult dogs:

For puppies, pregnant or nursing dogs, the amount can be increased to 1.5 to 2 times the adult amount. Switching food should also be gradual:

During the transition, monitor bowel movements and appetite; if there is soft stool, stay at the same ratio for another two or three days.

Storage: the 60-day limit and three actions

Herz air-dried food has about 14% to 15% moisture, slightly higher than regular dry food, so storage requirements are relatively strict:

• Consumption period: must be finished within 60 days of opening to ensure freshness and avoid nutrient loss.
• Environment: store in a cool, dry place below 25°C, away from direct sunlight or damp environments.
• Sealing: after each feeding, squeeze out the air from the bag and ensure the zipper is completely sealed.
• Note: the pack contains an oxygen absorber, which is not edible; if the product develops an off smell or mould, stop using it immediately.

A small-pack strategy is especially practical in Hong Kong: single-dog households can start with 1lb or 2lb, ensure it is finished within 60 days before restocking, which is safer than hoarding large packs.

Pure meat complete wet food: for both cats and dogs

Besides air-dried food, the brand also offers 80g pure meat complete wet food cans, grain-free and potato-free:

• For cats: chicken breast, wild salmon, white tuna and white pomfret, mainly single meat, suitable for picky cats or those needing hydration.
• For dogs: chicken breast, pasture-raised turkey, turkey with tender tendon, some formulas with added pumpkin.

Cans can be fed directly or mixed into air-dried food to improve palatability; for cats and dogs that do not drink actively, cans are a practical way to increase water intake. Remember to refrigerate after opening and consume as soon as possible.

Hong Kong buying tips

• Know the ranges: for all life stages look at the grain-free range; for adult dogs seeking high protein look at the Gourmet Supreme range.
• Check the codes: EZD031 (duck), EZD041 (beef), EZD051 (venison), EZD061 (chicken), EZD071 (lamb), EPD041 (tender beef with duck liver 1kg).
• Delivery: PetChill products are delivered by SF Express, with pickup at SF stations, smart lockers and designated convenience stores across Hong Kong; free shipping on orders over HK$299, in-stock items usually dispatched within 1 to 3 working days.
• Payment: PayMe, FPS, Visa, Mastercard and AlipayHK are supported.
• After-sales: if packaging is damaged or contents are abnormal, keep the complete packaging and receipt within 7 days of signing and contact customer service for return or exchange.

Related product recommendations

Beyond staples, freeze-dried food and treats can enrich your pet's menu. Below are related products available at PetChill:

• Nutriplan Soft Dog Food Immune & Skin Care Support 1.2kg (64337) (Nutriplan) — skin and coat care
• Bella & Molly's Royal Selection Dog Food AAFCO Grain-Free Single Protein Salmon Recipe 50g (limited trial) (Bella & Molly's) — grain-free formula, also suitable for pets with sensitive stomachs

Want to see more: Nutriplan Brand Guide

Product prices and latest offers are subject to the product page; this article is for reference only.

Further reading

• 2026 Hong Kong Dog Food Buying Guide →
• Wet vs Dry Food: How to Choose →
• How to Choose the Best Dry Dog Food →

This article is for reference only; consult a registered veterinarian for health issues. Prices were checked in October 2026; actual selling prices are subject to the online store. PetChill Editorial Team