Frozen diced red onion refers to a deep-processed vegetable product made by quickly freezing fresh red onions (bulb parts) after dicing through low-temperature quick-freezing technology for long-term preservation. Using “quick-freezing” technology, it maximizes the retention of red onions’ nutritional value, natural pungent flavor, and vibrant color, with each piece maintaining a crisp texture and deep purplish-red hue (some varieties appear violet-red), akin to fresh red onions. This convenient frozen form breaks through seasonal limitations (fresh red onions are mainly harvested from late spring to early autumn), making it a versatile flavor-enhancer for households, catering services, and busy lifestyles. It shares the same high sulfide content (including allicin, quercetin, etc.) and high-fiber profile as fresh red onions (~2.7g fiber/100g) and can be quickly cooked, perfectly adapting to modern efficient living needs.
Główne zalety
- Flavor preservation: Quick-freezing locks in over 90% of volatile sulfides (e.g., allicin, diallyl trisulfide) before red onion cells fully freeze, maintaining a pungent flavor nearly identical to fresh red onions.
- Żywy kolor: Standardized blanching (with ascorbic acid for color protection) effectively inhibits anthocyanin degradation, keeping each piece deep purplish-red (matching the color of freshly picked red onions within 2 hours).
- Convenient flavor enhancement: No need for washing or cutting (some products are pre-processed). Thawed dice can be directly used for stir-fries, cold dishes, pickling, or as pizza/pasta toppings to instantly enhance flavor in 30 seconds.
- Balanced nutrition: Low in calories (~40kcal/100g) and high in fiber (2.7g/100g), rich in quercetin (antioxidant) and vitamin C (7mg/100g), making it an excellent low-calorie seasoning for balanced diets.
- Year-round availability: Breaks through seasonal shortages of fresh red onions (e.g., winter scarcity) through quick-freezing, ensuring stable supply for households and catering services.
Scenariusze zastosowania
- Codzienne gotowanie w domu: Thawed dice are directly added to stir-fries, cold dishes , or meat marinades to enhance flavor layers instantly.
- Restaurant seasoning: Used in salads,pizzas, or as dips to enrich dish flavors.
- Zdrowe lekkie posiłki: Aromatic topping for salad bowls (with lettuce, quinoa, chicken breast) or blended into smoothies (with blueberries and spinach) to add fiber and antioxidants.
- Szybka wygoda: Soaked in boiling water (1 minute) or microwaved (30 seconds) to quickly enhance instant noodles, rice balls, or other fast foods.
Porady dotyczące jakości
- Store at a stable temperature below -18°C; avoid repeated thawing and refreezing (causes onion dice to absorb water, soften, and lose texture).
- : Kontrolować czas podgrzewania (w mikrofali na średnio-wysokiej temperaturze przez 30 sekund, w gorącej wodzie przez 1 minutę). Unikać długiego działania wysokiej temperatury (powoduje mięknięcie i utratę smaku).
- Choose pure red onion dice (no mixed vegetables or seasonings) to ensure pure flavor and concentrated aroma.
