How do the origin, processing method, and "number of heads" of abalone affect its grade and market value?

There are many varieties of abalone, and the place of origin affects its quality and market position.

Abalone has been a traditional and prized ingredient in China since ancient times, hailed as one of the "Eight Treasures" of seafood, and considered the premier of the "Abalone, Sea Cucumber, Shark Fin, and Fish Maw" trio. The Qing Dynasty court even had a "Full Abalone Banquet," demonstrating its exceptional status. Abalone is not only a fine gift but also an essential dish for entertaining guests and for festive occasions.

Abalone is mainly produced in various parts of the world, including northern Japan, northeastern China, South Africa, Australia, New Zealand, Mexico, and Europe. Different abalone from different producing areas have unique flavors and characteristics due to factors such as climate, water quality, and farming environment, which in turn affect their market value.

• Japanese Abalone : ​​When it comes to abalone, Japanese dried abalone is undoubtedly recognized as the top-grade product. It has a delicate fragrance and an attractive appearance. Commonly available Japanese abalone varieties include netted abalone, Yoshihama abalone, and Wajima abalone, which are 95-100% completely dried and are considered investment targets with extremely high appreciation potential, especially large abalone (five heads or more), as they are very rare. After the Fukushima earthquake, the number of Japanese dried abalone processing plants decreased sharply, making it even more precious.
• South African abalone : ​​South African abalone is relatively affordable, but it has a stronger seawater taste and is usually only 80-90% dry. It may feel slightly soft to the touch, but the presence of "salt spots" is normal. South African abalone is also categorized into herringbone, yellow croaker, and red croaker, but the differences are minor, mainly in color. However, South African abalone is more prone to mold growth due to factors including the South African climate and processing techniques. According to data, over half of the dried South African abalone on the Hong Kong market may come from illegal fishing and trade, a point worth noting and considering. As for fresh abalone, South African peacock abalone is hailed as the king of fresh abalone, with a rich, sweet flavor and thick, firm texture.
• Australian abalone : ​​Australian abalone is also a common variety on the market. The shell of Australian emerald abalone is a beautiful blue-green with white spots, making it outstanding in appearance. Its flesh is crisp and sweet, making it suitable for sashimi, providing both visual and gustatory enjoyment.
• Dalian abalone from China : Dalian abalone is the most affordable and one of the most common fresh abalone varieties found in markets. These abalone are lively and fresh, possibly due to their proximity to Hong Kong during farming. However, Dalian abalone tends to have a milder flavor and a slightly softer texture, requiring appropriate seasoning to bring out its sweetness.
• Mexican abalone : ​​Mexican canned abalone is widely recognized as the highest quality.

In recent years, due to overfishing and marine pollution, the production of wild abalone has decreased year by year, and most of the abalone on the market is farmed. Overfishing has resulted in 94% of the world's fisheries being fully or overfished. Illegal fishing accounts for one-fifth of the global catch, causing serious damage to marine ecosystems. As recyclers, we must support sustainable development, reduce the consumption of endangered seafood, choose environmentally friendly seafood, and mitigate our impact on the marine environment.

Processing methods: dried abalone, fresh abalone, chilled abalone, canned abalone, each with its own characteristics.

Abalone products are mainly divided into four types: dried, fresh, frozen, and canned. Different processing methods give abalone completely different flavors, textures, shelf lives, and most importantly, market value.

1. Dried abalone :

   • The most valuable : Dried abalone is the most valuable abalone product, even more expensive than fresh abalone. The "abalone" mentioned in the ancient saying "abalone, sea cucumber, shark fin, and fish maw" actually refers to dried abalone, which is made through a complex process.
   • The allure of "sweet heart" : One of the key reasons why dried abalone is so prized is its unique "sweet heart" texture, resulting from repeated sun-drying. This texture, both soft and chewy, is unmatched by fresh abalone and is why gourmets are so captivated by dried abalone. After being stored for a period of time, fully dried sweet heart abalone will develop a white frost on its surface. This is caused by proteins from the abalone body rising to the surface, and far from compromising quality, it is an important indicator of top-grade abalone.
   • Production Process : The production of dried abalone is complex and requires a significant amount of time and manpower. From raw material selection to sun-drying, pickling, boiling, baking, and hanging to dry, dozens of steps are involved, taking 30-45 days. Temperature and drying speed must be strictly controlled. It takes 10-12 catties of fresh abalone to produce just 1 catty of lightly dried abalone, resulting in very low yields. This high difficulty and low yield are the reasons for the persistently high price of dried abalone.
   • Investment and Collection : Dried abalone can be stored for a long time, making it a highly sought-after investment and collection target. High-quality dried abalone, especially Japanese dried abalone with five heads or more, has extremely high appreciation potential. Properly stored "old water abalone" has contracted fibers and a more intense aroma.
   • Storage method : Dried abalone should be stored in a well-ventilated, dry, and cool place, avoiding prolonged exposure to sunlight to prevent insect infestation and mold. After purchase, it is best to sun-dry it again for 2-3 hours, sealing it in a glass or earthenware jar while it is still warm. Regularly take the dried abalone out to sun-dry (avoiding strong midday sunlight) to remove excess moisture and enhance the aroma. After sun-drying, use a soft brush to remove surface salt and dust to maintain its optimal condition. For short-term storage, it can be sealed in a plastic bag and refrigerated, but long-term storage will cause it to lose its abalone flavor. It is not recommended to refrigerate it for extended periods to avoid cross-contamination of flavors with other foods.

2. Fresh abalone :

   • Sweet and fresh taste : Fresh abalone emphasizes freshness. Live abalone is usually cooked directly after processing, which allows you to taste the best flavor.
   • Popularization Trend : In recent years, due to advancements in modern breeding and aquaculture technologies, abalone production has increased significantly while costs have decreased. Furthermore, the north-south aquaculture exchange model has shortened the farming cycle, making fresh abalone increasingly affordable. What was once a luxury item is now gradually becoming a common dish on ordinary people's tables, appearing in everyday meals such as abalone rice and abalone chicken.
   • Storage methods : Fresh abalone can be placed in a large bowl of water and stored at room temperature for about three days, or up to five days with an oxygen supply. It can also be stored in the refrigerator for three days, but must be soaked in clean water first. For long-term storage, it is recommended to remove the internal organs before freezing, or to cool it in ice water to induce a dormant state, then wrap it in cling film or aluminum foil before freezing it in a plastic bag. Freezing raw is better than cooking before freezing, as it locks in moisture and maintains a tender texture.
   • Preparation method : Fresh abalone needs to be scrubbed with a brush to remove the shell, the abalone meat should be removed, the hard central tissue should be cut off, and the slime should be washed away with coarse salt. The expert's method involves first rinsing with clean water, then blanching the abalone in boiling water for about 5 seconds, immediately removing it and placing it in ice water. Afterward, scrub the surface of the abalone with a brush to remove dirt more effectively and maintain the elasticity of the meat. In Hong Kong, the internal organs of abalone are generally not eaten, but in Japan and other places, even the abalone liver is consumed, although it has a slightly sweet taste.

3. Frozen abalone :

   • Long shelf life : Frozen abalone is easy to store and usually needs to be stored in a freezer. Once taken out of the freezer, it should be consumed in one meal, otherwise the original flavor will be easily lost.
   • Quality preservation : Quick-freezing preserves the nutritional components, texture and flavor of abalone to the greatest extent, and after thawing, it is similar to fresh abalone.
   • Oil soaking method : Abalone can also be soaked in cooking oil, then put in a plastic bag and refrigerate.

4. Canned abalone :

   • Convenient and quick : Canned abalone is already shelled, sterilized, and seasoned, ready to eat straight from the can, making it extremely convenient. It's the most affordable abalone product available.
   • Short-term investment : Although canned abalone has a low investment threshold, its shelf life is short, so it can only be used as a short-term investment with low appreciation potential.
   • Storage method : Unopened canned goods do not need to be refrigerated and can be stored at room temperature in a cool place. Opened canned goods must be refrigerated and should be consumed within one week. The contents of opened canned goods should be transferred to an airtight container or other container, covered, and then placed in the refrigerator to prevent microbial contamination.
     

The Mystery of "Head Count": Key Indicators for Abalone Size, Grade, and Price

"Head count" is an important indicator for measuring the size and grade of abalone, but this term mainly applies to dried abalone and canned abalone. The grading method for fresh abalone is different.

• Definition of "head count" : The "head count" of abalone refers to the number of abalone in one jin (approximately 655 grams). For example, "four-head abalone" means there are four abalone in one jin, while "ten-head abalone" means there are ten abalone in one jin.
• The relationship between grade and price : The fewer the number of abalone per head, the larger and heavier each abalone is, thus its grade is higher and its price is more expensive. This principle of "scarcity drives up value" is especially evident in large dried abalone. For example, "two-head abalone" refers to abalone with two heads per catty (approximately 500 grams), each weighing over 300 grams. They are rare and expensive, hence the saying "even with money, it's hard to buy two-head abalone."
• Dried abalone "head count" : The head count of dried abalone is a core element in assessing its market value. Investors usually choose large-headed dried abalone with five or more heads because they are rare and have extremely high appreciation potential. Dried abalone produced by Wu Yongshou Company ranges in price from HK$300 to HK$3,500 per catty (500g) depending on the type and size, while the precious Japanese soft-boiled dried abalone can reach over HK$10,000.
• Canned abalone "head count" : The head count of canned abalone represents the number of whole abalone in the can. Similarly, the fewer the head count, the more expensive it is.
• A comparison of the "head count" of fresh abalone : ​​Fresh abalone is also counted by the number of abalone per pound. For example, "Chinese Dalian abalone" averages 45 grams (1.2 taels), which is about 13 abalone; "Australian Emerald Abalone" averages 61 grams (1.6 taels), which is 10 abalone; and "South African Peacock Abalone" averages 78 grams (2 taels), which is 8 abalone. It is evident that South African Peacock Abalone is the largest and most average in size. Although the price of fresh abalone has dropped significantly, for example, the wholesale price of 12-head abalone is about HK$47/pound, and 6-head abalone is about HK$63/pound. However, for dried abalone, the "head count" remains an important standard for measuring its rarity and market value.

Abalone grade and market value are considered comprehensively.

The grade and market value of abalone are the result of a combination of factors, including the place of origin, processing method, and number of abalone.

Historically, abalone became a high-end ingredient initially due to its rarity and the complex preparation and cooking process, making it a "status symbol." Eating it was not just about taste, but also about status and power.

However, the price of fresh abalone has indeed become increasingly affordable in recent years. Advances in aquaculture technology, increased production, and the application of aquaculture exchange models between northern and southern regions have all significantly reduced the cost of fresh abalone. For example, on Meituan Maicai (a grocery delivery platform), a single 17-gram fresh abalone costs only about HK$2.5, and a 45-gram medium abalone costs only about HK$9.9. This trend towards democratization has brought abalone from the pinnacle of banquets to ordinary households, expanding its application from high-end entertainment to everyday meals.

However, it's important to note that the popularization of fresh abalone doesn't mean that dried abalone will be downgraded. High-quality dried abalone, especially Japanese soft-boiled abalone and large-sized dried abalone, remains the "aristocrat" of the market. Their value lies in their exquisite production process, unique "sweet-boiled" texture, and investment and collection potential as a rare ingredient.

As recyclers, we need to grasp the diversity of the abalone market. For fresh abalone, we can focus on its freshness and origin. For example, Dalian abalone from China is known for its freshness, while South African peacock abalone is famous for its rich flavor. For dried abalone, we need to understand its origin, processing techniques, and "number of heads" (a unit of weight in a single piece). The appreciation potential of high-quality dried abalone should not be underestimated.

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[ Jin Haisheng Recycler's Tip] Fellow industry professionals, the abalone market is full of opportunities, but it also requires expertise. Whether handling fresh or dried abalone, understanding its origin and grade requires dedicated learning and practice. More knowledge means more control! Jin Haisheng looks forward to exploring the recycling value of seafood together, maximizing the potential of every valuable product!

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