The Heat Test: Granite vs. Quartz vs. Soapstone

One of the most common myths in kitchen design is that "all stone is heat proof." In 2025, as engineered quartz dominates the market, homeowners are learning the hard way that this isn't true.

1. Engineered Quartz (The "Melts" Category)

• Heat Resistance: LOW (Max ~300°F / 150°C).
• The Science: Quartz countertops are 90% crushed stone and 10% plastic resin.
• The Risk: A hot pan right off the stove (400°F+) will instantly scorch the resin. This creates a permanent yellow/brown burn mark that cannot be buffed out.
• Rule: ALWAYS use a trivet. No exceptions.

2. Granite & Quartzite (The "Rock" Category)

• Heat Resistance: HIGH (1200°F+).
• The Science: Reduced from magma. It was born in fire.
• The Risk: While the stone won't burn, extreme "thermal shock" (ice cold surface + boiling pot) can cause a crack, though it is rare.
• Rule: Safe for warm trays, but risky for blazing hot cast iron.

3. Soapstone (The "Chem Lab" Category)

• Heat Resistance: EXTREME.
• The Science: Originally used for chemistry lab tables. It is thermally inert.
• The Benefit: You can take a pot directly from the burner and place it on Soapstone. It will not crack, burn, or discolor.
• Rule: The ultimate chef's surface.

2025 Verdict

• If you want Zero Maintenance (Stains) -> Buy Quartz.
• If you want Zero Worry (Heat) -> Buy Soapstone or Granite.