What are biscuit tins made of?

Biscuit tins are typically made of tinplate, which is a thin sheet of steel coated with tin.

Here's a breakdown of the materials and why they're used:

* Steel: Provides the structural strength and durability to hold the biscuits and withstand repeated use.

* Tin coating: Offers corrosion resistance and helps prevent rusting, ensuring the tin stays clean and safe for storing food.

* Lacquer coating: Often applied over the tin coating to provide a smooth surface, protect against wear and tear, and prevent the biscuits from absorbing any metallic flavors.

Some biscuit tins might also include:

* Plastic: Used for the lid or base to provide airtight sealing and make the tin easier to open and close.

* Rubber: Used in the lid for a better seal or in the base to provide grip and prevent slipping.

While tinplate is the most common material, some biscuit tins might be made of alternative materials like:

* Aluminum: Lightweight and durable, but not as resistant to corrosion as tinplate.

* Stainless steel: Highly durable and resistant to rust, but can be more expensive.

The choice of material depends on factors like cost, desired durability, and whether the tin is designed for single use or multiple uses.