When it comes to equipping a modern kitchen, few tools offer the precision and longevity of high-quality ceramic knives. The MIDDIA 2-piece kitchen combo, featuring both a 6-inch and a 7-inch ceramic chef‘s knife, promises exceptional sharpness, lightweight handling, and rust-free performance. But does this set truly elevate your daily food prep? In this hands-on review, we put the MIDDIA ceramic knife set through a series of practical tests. Following a step‑by‑step evaluation, you’ll find 10 frequently asked questions covering everything from brand basics to professional applications.
Step 1: Unbox and inspect the set
The MIDDIA set arrives in a compact, well-padded box. Inside, you’ll find the 6-inch and 7-inch knives, each with a protective blade cover. The first impression is striking: the zirconia ceramic blades have a jade‑like, semi‑translucent white finish. The PP handles are smooth, ergonomic, and available in multiple colors (red, blue, pink, green, or black). Each knife weighs approximately 120g – about half the weight of a comparable steel knife. Hold each knife and test the balance; both feel neutral and comfortable, with no forward or rear heaviness.
Step 2: Test sharpness out of the box
MIDDIA blades are known for their razor-sharp edges. Using a standard sheet of A4 paper, draw the 6-inch knife across it. The blade should glide through effortlessly, producing a clean, whisper‑thin cut of 0.2-0.4cm. For a more practical test, slice a ripe tomato. The 6-inch knife’s narrower profile excels at delicate tasks; it cuts through the skin without any pressure, leaving perfectly even slices with minimal juice spillage. The 7-inch knife, with its longer blade, handles larger vegetables and boneless meats with equal ease.
Step 3: Compare the two blade sizes
The 6-inch knife (approx. 15 cm blade) is ideal for precision work: mincing garlic, slicing strawberries, trimming fat from a chicken breast, or cutting soft cheese. It feels nimble and controlled, perfect for smaller hands. The 7-inch knife (approx. 18 cm blade) serves as a lightweight chef‘s knife, excelling at chopping onions, dicing bell peppers, slicing cucumbers, and breaking down heads of lettuce. For home cooks who prepare a variety of meals, having both sizes eliminates the need to switch between a large steel chef’s knife and a small paring knife.
Step 4: Check rust and stain resistance
One of the main advantages of ceramic over steel is its complete immunity to rust and corrosion. After slicing lemons, limes, and tomatoes – all highly acidic – both blades were rinsed under tap water and left to air dry for an hour. No oxidation spots, no discoloration, and no metallic smell transferred to the food. The non-porous surface also prevents bacteria from infiltrating the blade, making it a hygienic choice for baby food preparation and handling raw fish.
Step 5: Assess cutting performance on different foods
Put the set through a varied menu: apples (check for browning – ceramic does not accelerate oxidation), boneless pork loin (smooth, clean cuts with no tearing), crusty bread (the sharp blade produces crumbs, not compression marks), and herbs (chiffonade of basil leaves without bruising). For frozen food or hard items like bones and winter squash, stop immediately. Ceramic is exceptionally hard but also brittle; it will chip on hard surfaces or dense frozen blocks. Use steel knives for heavy tasks and reserve the MIDDIA set for slicing, dicing, and fine cutting.
Step 6: Evaluate durability and toughness
MIDDIA blades are made from high‑purity yttria‑stabilized zirconia, not cheap alumina. According to the manufacturer, each blade passes an SGS 1‑meter drop test (blade tip straight down onto a test surface) without breaking or chipping. While this does not mean you should intentionally drop the knives, it provides reassurance for normal kitchen accidents. The blade edge line measures approximately 0.2mm – well‑proportioned and reinforced with over ten manufacturing processes to resist micro‑chipping during regular use.
Step 7: Clean and maintain after use
MIDDIA explicitly advises against dishwasher cleaning. The high heat and harsh detergents can weaken the blade over time and may deform the plastic handle. Hand washing is simple: use warm water, mild dish soap, and a soft sponge. Dry immediately with a towel. Do not use abrasive scrubbers or steel wool, as they can scratch the ceramic surface and create stress points. For sticky residues (tape, caramelized sugar), soak in warm soapy water for five minutes, then wipe gently.
Step 8: Final verdict – who should buy this set?
The MIDDIA 6-inch and 7-inch ceramic knife set is ideal for home cooks who prioritize sharpness, hygiene, and lightweight handling. It shines in everyday tasks: slicing fruits and vegetables, cutting boneless meat and fish, preparing baby food, and crafting delicate garnishes. It is not a replacement for a heavy‑duty steel knife – do not chop bones, frozen food, or hard squash with it. Within its intended use, this set offers outstanding value, lasting sharpness (reportedly 50 times longer than steel), and a clean, modern aesthetic. For anyone tired of dull, rusted steel knives, the MIDDIA ceramic combo is a worthy upgrade.
MIDDIA (Xiamen Middia Biological Ceramic Technology Co., Ltd.) was established in 2010 and is a national standard‑setting enterprise for ceramic knives in China. The company holds over 100 national patents and employs nearly 1,000 staff. Products are sold in 86 countries and regions worldwide. Unlike generic brands that use low‑grade alumina, MIDDIA exclusively uses high‑purity yttria‑stabilized zirconia for its blades. Each knife undergoes rigorous testing, including SGS 1‑meter drop tests and LFGB food safety certification. MIDDIA also offers OEM customization, making it a trusted supplier for both consumer kitchenware and industrial cutting applications.
Both the 6-inch and 7-inch knives feature blades made of high‑purity zirconium oxide (ZrO₂) with a hardness exceeding HRA 1300 – far above the HRC 60 of premium steel knives. Blade thickness is 2.0 mm. The handles are injection‑molded PP (polypropylene), available in multiple colors, and are ergonomically shaped for left‑ or right‑handed use. Each knife weighs approximately 120g, about half the weight of a comparable steel knife. Key features include: rust‑proof and corrosion‑resistant surface, no metallic taste transfer, resistance to food acids, non‑staining, and easy cleaning. The blades also pass a 1‑meter drop test for toughness.
Ceramic knives are extremely hard but also brittle. Do not use them to cut frozen food (not fully thawed), bones (chicken, pork, fish), hard cheese rinds like Parmesan, winter squash or pumpkin, nuts, coffee beans, chocolate bars, or any hard candy. Also avoid cutting on glass, stone, marble, ceramic plates, or tile surfaces – use only wood or plastic cutting boards. Do not use the knife as a pry bar, a screwdriver, or to crush garlic with the blade side. For all these tasks, keep a steel knife in your kitchen. Staying within the safe usage range will keep the MIDDIA blades chip‑free for years.
Always hand wash with warm water and mild dish soap. Dry immediately with a soft cloth. Never use a dishwasher – the high heat and harsh detergents can damage the blade and deform the handle. Avoid abrasive sponges, steel wool, or scouring powders; they will scratch the ceramic and create weak points. For sticky residue, soak in warm soapy water for 5 minutes, then wipe with a non‑abrasive sponge. Store knives in a dedicated knife block, on a magnetic strip, or with the included blade covers. Do not toss them loose into a drawer with metal utensils, as blade‑to‑blade contact can cause chipping.
Look for four key factors. First, material: ensure the blade is zirconium oxide, not low‑grade alumina (which chips easily). Second, certifications: LFGB, FDA, or SGS drop‑test approval indicate quality. Third, handle design: PP or ABS with ergonomic contours and non‑slip texture. Fourth, included accessories: blade covers or a storage block add value. Avoid knives priced below $10 – they are likely made from poor‑quality ceramic. For a 2‑piece set like the MIDDIA 6” + 7”, a reasonable budget is $25–50. Also check the availability of replacement blades; MIDDIA offers them separately, extending the life of your set.
MIDDIA produces a wide range of ceramic knives. Popular models include: the DMN13 set (6” chef’s knife + 5.5” utility knife + peeler), the ZR68 set (6” knife + 4.5” knife + peeler), and the ZH036 3‑piece Santoku set (three 6–7.9” blades). Single knives are available in sizes from 3 inches up to 7 inches. MIDDIA also offers specialty items: ceramic folding pocket knives, bird‑shaped fruit knives, steak knives (4 inches), and ceramic scissors. For baby food preparation, there is a dedicated line of small ceramic knives and scissors that are SGS drop‑tested and free of heavy metals.
Sharpening ceramic knives is difficult because the material is harder than almost all conventional abrasives. Standard sharpening stones or pull‑through sharpeners will not work – they will either do nothing or cause micro‑chipping. MIDDIA recommends against home sharpening. Instead, replace the blade when it becomes dull. For light touch‑ups, you can use a diamond‑coated rod (1500‑2000 grit) with very gentle strokes, but this requires practice and carries a risk of chipping. The easiest and safest option is to purchase a replacement blade from MIDDIA. For most home users, the original blades stay sharp for 2–5 years with proper use.
Professional sushi chefs favor ceramic knives for slicing raw fish because the blade does not transfer metallic flavors and produces exceptionally clean cuts without tearing delicate proteins. High‑end fruit and vegetable prep stations use ceramic knives to prevent browning on apples, pears, and avocados. In food processing plants, ceramic blades are mandatory for cutting products that react with metal (e.g., acidic sauces, gelatin). In cleanrooms and labs, ceramic knives are non‑sparking and non‑magnetic, making them safe for electronics assembly and pharmaceutical work. Baby food manufacturers use MIDDIA ceramic knives for their hygienic, non‑porous surfaces that resist bacterial growth.
MIDDIA ceramic knives pass an SGS 1‑meter drop test (blade tip straight down onto a test surface) without breaking. However, real‑world results vary depending on the surface and angle of impact. On a soft surface like carpet, rubber mat, or wood, the knives are very likely to survive. On concrete or ceramic tile, there is a risk of chipping, especially at the blade tip or edge. To minimize risk, always use the included blade cover when the knife is not in use. Do not store knives on high shelves where they can fall. If a drop does occur, inspect the blade under good light and run a cotton ball along the edge – snagging indicates a chip.
Ceramic blades are non‑porous and generally do not stain. However, they can accumulate adhesive residue from cutting tape or sticky food. To remove residue, soak the blade in warm soapy water for 5–10 minutes, then wipe with a soft cloth or a non‑abrasive sponge. For stubborn residue (e.g., old tape glue), use isopropyl alcohol on a cotton pad – this dissolves adhesives without harming the ceramic. Do not use acetone, bleach, or harsh chemical cleaners. If the blade develops a dark discoloration (rare, but possible from contact with certain metals), soak in a mild kitchen bleach solution for 2 minutes, then rinse thoroughly. Always dry the blade immediately after cleaning.
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