Food-Grade Calcium Oxide (Quicklime) is a highly reactive alkaline compound used as a desiccant, acidity regulator, processing aid and nutrient source in food and feed applications.We supply bulk Calcium Oxide sourced from leading China manufacturers, available in powder form for global food and beverage producers. Our Calcium Oxide is widely used in juice clarification, corn nixtamalization precursor, food packaging, animal feed calcium supplement and water treatment alkalisation.
Calcium Oxide (CaO), known as quicklime or burnt lime, is produced by calcining high-purity limestone at 900-1000°C. Food-grade CaO is an extremely strong alkali that reacts exothermically with water.
Used in food processing for sugar refining, corn nixtamalization, as a desiccant in food packaging, and as a calcium source. In feed it serves as a calcium supplement and pH regulator.
| Item | Specification |
|---|---|
| Appearance | White to greyish-white powder or lumps |
| Assay (as CaO) | ≥ 95.0% |
| Loss on Ignition | ≤ 3.0% |
| Acid Insolubles | ≤ 1.0% |
| MgO | ≤ 2.0% |
| Heavy Metals (as Pb) | ≤ 10 mg/kg |
| Arsenic | ≤ 3 mg/kg |
Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine Calcium Oxide with other food ingredients in one shipment to save on freight.
We provide free samples (100–500g) for quality testing before you place a bulk order. The buyer covers shipping costs only. Samples are typically dispatched within 2–3 business days.
Standard lead time is 7–15 days after order confirmation and payment. For stock items, delivery can be faster. We will confirm the exact timeline before you place the order.
You will receive the original COA (Certificate of Analysis), COO (Certificate of Origin), MSDS, TDS, and relevant certifications directly from the manufacturer. We guarantee full document authenticity and traceability.
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Whether you're sourcing bulk ingredients or mix container, contact our team for pricing, free samples, and technical support.