Yes, there are several types of cookware that can be considered 100% non-toxic, meaning they do not leach harmful chemicals into food and are safe under normal cooking conditions. Here are some of the most recommended: 

1. 100% Ceramic Cookware

Description: Made entirely from natural clay, water, and minerals, 100% ceramic cookware is fired at high temperatures and does not contain any metal or chemical additives.

Pros: Completely non-reactive and free from PTFE, PFOA, lead, cadmium, and other toxic materials. Excellent heat retention and versatile for various cooking styles.

Cons: Can be fragile and prone to chipping or cracking if not handled carefully.

2. Glass Cookware

Description: Glass cookware is made from tempered glass, which is non-reactive and does not absorb odors or flavors.

Pros: Chemically inert, meaning it won’t react with the food you’re cooking, and is completely transparent for easy monitoring of food.

Cons: Limited in types (mostly suitable for baking and storing) and can break easily if dropped or exposed to extreme temperature changes.

3. Cast Iron

Description: When properly seasoned, cast iron offers a naturally non-stick surface without the need for chemical coatings.

Pros: Highly durable and can last generations if maintained correctly. Ideal for high-heat cooking and improves over time.

Cons: Requires regular seasoning to maintain non-stick properties and prevent rust. Can be heavy.

4. Stainless Steel

Description: High-quality stainless steel cookware is made primarily from iron, carbon, and chromium, which is non-reactive when high-quality.

Pros: Durable, easy to maintain, and resistant to rust and corrosion. Does not release harmful chemicals.

Cons: Lower quality stainless steel can leach small amounts of nickel and chromium, especially when cooking acidic foods.

5. Titanium Cookware

Description: Often used in a coated form but also available as pure titanium, which is extremely lightweight and strong.

Pros: Non-reactive, resistant to corrosion and scratching. It is considered very safe as it does not leach into food.

Cons: Pure titanium cookware can be expensive and is not as widely available as other types.

Each type of cookware has its benefits and drawbacks, and the choice often depends on personal preferences, cooking habits, and budget. 100% ceramic and glass cookware are generally considered the safest in terms of being completely non-toxic and non-reactive.