Material Education
Understanding the materials of your kitchen containers helps you make safer, healthier choices for your daily cooking and meal prep.
At Borohouse, we focus on premium borosilicate glass kitchenware. This material education hub breaks down the core differences between common food storage materials, including borosilicate glass, soda-lime glass and plastic.
What Is Borosilicate Glass?
Borosilicate glass is engineered with silica and boron trioxide. It features low thermal expansion, giving it outstanding resistance to sudden temperature changes.
- Non-porous and chemically inert
- No chemical leaching into food even at high temperatures
- Safe for microwave, oven, refrigerator and freezer
- Resists stains, grease and persistent food odors
- Long service life and fully recyclable
What Is Soda-Lime Glass?
Soda-lime glass is standard ordinary glass made of silicon, sodium and calcium. It has stable performance at room temperature, but poor thermal shock resistance.
- Not suitable for rapid temperature changes
- Not recommended for direct boiling or microwave high-heat use
- Low cost, commonly used for cold storage cups and jars
Borosilicate Glass vs Plastic
Plastic food containers are lightweight and affordable, yet they have inherent limits for high-temperature food reheating.
- Low-grade plastic may release substances when heated
- Porous surface absorbs sauce stains and food smells over time
- Easy to scratch and degrade after repeated use
- Most plastic is hard to recycle and creates long-term waste
Key Comparison Summary
| Material | Heat Resistance | Food Safety | Stain & Odor | Lifespan |
|---|---|---|---|---|
| Borosilicate Glass | Excellent | No leaching | Resistant | Very long |
| Soda-Lime Glass | Poor | Safe at room temp | Resistant | Medium |
| Plastic | Limited | Risk when heated | Absorbs odors | Short |
Important Safety Tips
- Never heat borosilicate glass directly with an open flame.
- Avoid no-load heating inside the microwave.
- When removing hot glassware from microwave or oven, place it on dry wooden boards. Do not touch cold or wet surfaces.
- Wear protective gloves to avoid burns; glass can exceed 250°C after heating.
- Do not scratch glass with sharp, hard objects.
- Keep hot glassware away from children and pets.
